September 2015

 

RALPH ARCHIBALD STEPHEN

Marine Geophysicist

Senior Scientist

Woods Hole Oceanographic Institution - MS24

360 Woods Hole Road

Woods Hole, MA  02543-1542

(508) 289-2583

FAX:  (508) 457-2150

E-mail:  rstephen@whoi.edu

ORCID ID: orcid.org/0000-0003-0937-2049

ResearcherID: P-4057-2014

Scopus Author ID: 7102212814

Citizenship:    USA, Naturalized, 1989

B.A.Sc. (Hon) University of Toronto, 1974, Engineering Science

Ph.D.               University of Cambridge, 1978

 

Assistant Scientist, Woods Hole Oceanographic Institution, June 1978 - May 1982

Associate Scientist, June 1982 to May 1986

Associate Scientist with tenure, June 1986 to November 1990

Senior Scientist, November 1990 to present

 

Research Interests:

         Marine seismology and bottom interacting ocean acoustics

         Seismic structure of oceanic crust

         Propagation and scattering in absorptive, anisotropic and heterogeneous elastic media

         Borehole seismic experiments

         Synthetic seismogram methods

         Ambient noise in the ocean

         Broadband seismology (1mHz to 1KHz)

         Seismometry

Professional Societies:           

         Acoustical Society of America, 1987-present

         American Geophysical Union, 1977-present

         Royal Astronomical Society, 1980-present

         Society of Exploration Geophysicists, 1977-present

         Seismological Society of America, 1983-present

Awards:

         Roy Jarvis Henry Admission Scholarship, 1970

         Ontario Scholarship, 1970

         Samuel Beatty Scholarship in Mathematics, 1970

         Don Salt Memorial Fellowship, 1973

         Shell Canada Postgraduate Scholarship, 1974-1978

         Mellon Independent Study Awards, 1995, 1998, 2001

         Fellow of the Acoustical Society of America, Awarded 2006.

         Edward W. and Betty J. Scripps Chair for Excellence in Oceanography, 2008-2012


Committees:

         JOIDES Ocean Crust Panel, November 1979 to August 1983

         Ocean Margin Drilling Program, Downhole Measurements Committee

         Ocean Margin Drilling Program, Ships Space Committee

         Associate Editor, Reviews of Geophysics - June 1985 - December 1988

         JOIDES Downhole Measurements Panel - June 1986 - December 1988

         JOIDES East Pacific Rise Working Group - February 1988 - August 1990

         ASA Technical Committee - Acoustical Oceanography - May 1997 - April 2000, May

                        2004 - April 2010

         ASA Technical Committee - Underwater Acoustics - May 1993 - April 1996, May

                        1997 - April 2018

         ASA Committee on Education in Acoustics - May 1999 - June 2008

         ASA Specialty Subcommittee on Integrated Acoustic Systems for Ocean Observatories 

                        (IASOO) - December 2002 – December 2012

         Ocean Seismic Network Steering Committee - December 1995 - June 2007

         International Ocean Networks (ION) - Participant - 6/1993-5/2007, Chair - 6/2007-6/2011

         IRIS Board of Directors - February 1996 - 2004, Institutional Representative 2004 - 2013

         LDEO-Borehole Research Group Board - December 1998 - October 2003

         AGU Meetings Committee - July 2000 - June 2004

         Associate Editor, Journal of the Acoustical Society of America, January 2002 - June 2011

         Chairman of the IODP-Industry Science Program Planning Group, November 2005 -

                        December 2008

         NSERC (Canada) Ship Time Allocations Committee - July 2008 - June 2011.

         Editor, Studia Geophysica et Geodaetica, September 2005 - present.

Associate Editor, Journal of Geophysical Research, August 2009 - present.

 

Cruises:

         R/V ATLANTIS II - September 1975 - Leg 92A - Visiting Scientist - OBH deployment

                        in the Western Atlantic

         R/V KNORR - March 1976 - Visiting Scientist - Aborted borehole seismic experiment

         RRS JOHN MURRAY - May 1976 - Assistant Scientist - PUSS deployment in North Sea

         D/V GLOMAR CHALLENGER - February/April 1977 - DSDP Leg 52 - Geophysicist -

                        First deep sea borehole seismic experiment  (at Site 417)

         D/V GLOMAR CHALLENGER - March 1979 - DSDP Leg 65 - Geophysicist - Borehole

                        seismic experiment (at Site 483)

         R/V GILLISS - December 1979 - (in conjunction with D/V GLOMAR CHALLENGER,

                        DSDP Leg 70) - Chief Scientist - Borehole seismic experiment (at Site 504)

         R/V OCEANUS - June 1981 - Assistant Scientist - Multi-ship multi-channel seismics

                        (Large Aperture Seismic Experiment - LASE)

         D/V GLOMAR CHALLENGER - August - September 1982 - DSDP Leg 88 - Co-Chief

                        Scientist - MSS and OSS borehole seismic experiments (at Site 584)

         R/V ELLEN B. SCRIPPS - April 1983 - (in conjunction with D/V GLOMAR

                        CHALLENGER, DSDP Leg 92) - Chief Scientist -  Borehole seismic experiment

                        (at Site 504)

         R/V FRED H. MOORE - March/April 1985 - (in conjunction with D/V SEDCO/BP 471 -

                        ODP Leg 102) - Chief Scientist - Borehole seismic experiment (at Site 418)

         NADIR - July/August 1988 - Visiting Scientist - Submersible re-entry at DSDP Hole 395


Cruises, contÕd:

         R/V MELVILLE - May 1989 - Visiting Scientist - Attempted wire-line re-entry at DSDP

                        Holes 417 and 418

         R/V MELVILLE - August 1989 - Co-chief Scientist - LFASE deployment (at Site 534)

         R/V MELVILLE - September 1989 - Co-chief Scientist - LFASE recovery (at Site 534)

         R/V CORY CHOEST - July 1993 - Scientist - ARSRP Acoustics Cruise

         R/V ROGER REVELLE - August 1997 - Chief Scientist - Survey of Hawaii-2 cable

         D/V JOIDES RESOLUTION - October/December 1997 - ODP Leg 176 - VSP and

                        Physical Properties Specialist - Southwest Indian Ridge (at Site 735)

         R/V THOMAS THOMPSON - January/February 1998 - Chief Scientist - OSN Pilot

                        Experiment Deployment Cruise

         R/V MELVILLE - June 1998 - Chief Scientist - OSN Pilot Experiment Recovery Cruise

         D/V JOIDES RESOLUTION - December 2001/January 2002 - ODP Leg 200 - Co-Chief

                        Scientist - Nuuanu Landslide (Site 1223) and Hawaii-2 Observatory (Site 1224)

         KAIREI - October 2002 - Visiting Scientist - Data recovery cruise to WP-1 (Philippine

                        Sea)

         R/V ROGER REVELLE - July 2010 - Visiting Scientist - Controlled source cruise for

                        PhilSea 10

         R/V ROGER REVELLE - April-May 2011 - Chief Scientist - Ocean bottom seismometer

         augmentation in the Philippine Sea (OBSAPS) Experiment.

R/V MELVILLE – June–July 2013 – Co-Principle Investigator, Ocean bottom seismometer

               augmentation in the North Pacific (OBSANP) Experiment.

Yesterday Camp, Ross Ice Shelf - October-November 2014  - Co-Principle Investigator - Dynamic response of the Ross Ice Shelf to wave-induced vibration (DRRISWIV)

 

In-House Activities:

         Journal Club - member - January, 1981 - September 1983, Chairman - 7/'81 - 9/'82

         MIT-WHOI Joint Program Admissions Committee - January 1981 - December 1982

         MIT-WHOI Joint Committee for Marine Geology and Geophysics, Sept/83 - Mar/86

         Chairman, Promotion Committee for Dr. J. Lynch - July 1985 - January 1986

         RSVP Computer Committee - July 1985 - December 1986

         Chairman, Promotion Committee for Dr. J. Jaffe - October 1987 - January 1988

         G & G ad Hoc Space Committee - July 1987 - December 1988

         G & G ad Hoc Recruitment Committee - June 1988 - August 1990

         Henry Bryant Bigelow Award Committee - January - May, 1992

         Chairman, Promotion Committee for Dr. S. Rajan - September 1992  - February 1993

         Computer Revolutionary Committee - May - August 1993

         Science Advisory Committee for Computer Service - 9/'93 - 8/'96

         Chairman, Promotion Committee for Dr. D.J. Tang - March - April 1996

         Web Advisory Committee - February 1996 - August 1996

         Retirement Plan Task Force - February 1997 - November 1998

         Chairman, CIS Director Search Committee - January 1999 - June 1999

         Senior/Tenured Scientist Executive Committee - 8/1998 - 10/2001, Chair - 8/2000 - 8/2001

         Associate Scientist Review Committee for John Collins - May 2001

         Retirement Committee - August 2000 - March 2004

         Ad Hoc Task Force on Alternatives for Medical Coverage for 2002 - October 2001

         Associate Scientist Review Committee for Rob Sohn - December 2005.

         Information Technology Advisory Committee - Chair - January 2001 - March 2007.

 In-House Activities, contÕd:

         Associate Scientist Review Committee for Jeff McGuire - September 2007.

         G&G Department Space Committee - November 2007 - February 2008

         WHOI Rep. to Research Partnership to Secure Energy for America - 7/2007-12/2009

         Chairman, Promotion Committee for Dr. Y.-T. Lin - June - September 2012

         Partnerships Program - 1995 - 2001, 2006 - present

 

Educational Program:

         Advisor for Joint Program Students:  W. Loy, N. Bird, G. Duckworth,

                        M. Dougherty, R. Fricke, C. Bradley and R. Greaves

         Examination Committee Member for:  A. Merab, F. Pardo-Casis (MIT), D. Burns (MIT),

                        H. Kawahara, P. Dahl, J. Snow, N. Cheng (MIT), M. Imhof (MIT),

                        V. Lupien (MIT), L. Souza (MIT) and M. Xu

         Supervised papers for:  S. Little, L. Kong, A. Gunstensen (MIT), L. Li, C. Williams and M.

                        Xu

         Supervised Summer Student Fellows:  W. Schmidt, A. Harding, M. Burton, S. Childress,

                        M. Holzrichter, J. Walter., S. Nag and D. Bhaskar

         Supervised Summer Guest Students:  I. Zeldenrust, S. Buenz,

 

Courses Taught (MIT-WHOI Joint Program):

         12.77 Marine Geophysics, Spring 1980 (with C. Denham and other geophysics staff)

         12.78 Marine Geophysics II, Fall 1982 (with C. Bowin and M. Purdy)

         12.77 Introduction to Marine Geophysics, Fall 1983 (with T. Brocher)

         12.712 Advanced Marine Seismology, Fall 1984 (with T. Brocher), Spring 1989 (with P.

                        Shaw), Fall 1991, Fall 1992 and Spring 1995 (with R. Detrick), Spring 1997,

                        Spring 2000, Spring 2009, Fall 2013

         12.711 Introduction to Marine Geophysics, Fall 1985, 1986, 1987, 1989 (with R. Von

                        Herzen), Spring 1992 (with M.Tivey)

         12.504/711 Introduction to Marine Geophysics, Spring 1993 (with M. McNutt)

         12.710/711 Marine Geology and Geophysics, Fall 1993/Spring 1994 (with R. Detrick, N.

                        Shimizu and W. Curry), Fall 1994/Spring 1995

         12.710 Marine Geology and Geophysics, Fall 1995 (with R. Detrick, G. Giese and M.

                        Raymo), Fall 1996 (with G. Giese and M. Raymo)

         12.571 Seismology Seminar:  Numerical Wave Propagation, Fall 2000  (with N. Toksoz

                        and V. Cormier)

 

Sabbatical Leave:

            Hawaii Institute of Geophysics, Honolulu, Hawaii, December 1984 to February 1985

            SACLANT Undersea Research Center, La Spezia, Italy, September 1990 to August 1991

            Earthquake Research Institute, University of Tokyo, October 2002 to March 2003

 

Author or co-author of over two hundred scientific papers.


BIBLIOGRAPHY

 

R.A. STEPHEN

 

PUBLICATIONS

 

Stephen, R.A., 1977.  Synthetic seismograms for the case of the receiver within the reflectivity zone.  Geophys. J. R. astr. Soc., 51, 169-181.

 

Stephen, R.A., 1978.  The Oblique Seismic Experiment in Oceanic Crust.  Ph.D. Thesis.  University of Cambridge, Cambridge, U.K.

 

Stephen, R.A., 1979.  The Oblique Seismic Experiment in Oceanic Crust - Equipment and Technique.  Mar. Geophys. Res., 4, 213-226.

 

Salisbury, M. H., Stephen, R.A., Hamano, Y., Johnson, D., Donnelly, M., Francheteau, J., and Christensen, N., 1979.  The physical state of the upper levels of Cretaceous oceanic crust from the results of logging, laboratory studies and the Oblique Seismic Experiment at DSDP Sites 417 and 418.  In:  Talwani, M. et al., Deep Drilling Results in the Atlantic Ocean:  Ocean Crust, American Geophysical Union, Washington, D.C., 113-134.

 

Salisbury, M. H., Stephen, R.A.,  Christensen, N., Francheteau, J.,  Hamano, Y., Hobart, M., and  Johnson, D.,  1979.  The physical state of the upper levels of Cretaceous oceanic crust from the results of logging, laboratory studies and the Oblique Seismic Experiment at DSDP Sites 417 and 418.  Maurice Ewing Series.

 

Stephen, R.A., Louden, K.E., and Matthews, D.H., 1980.  The Oblique Seismic Experiment on DSDP Leg 52.  Geophys. J.R. astr. Soc., 60, 289-300.

 

White, R.S., and Stephen, R.A., 1980.  Compressional to shear wave conversion in oceanic crust.  Geophys. J. R. astr. Soc., 63, 547-565.

 

Stephen, R.A., 1981.  Seismic anisotropy observed in upper oceanic crust.  Geophys. Res. Lett., 8, 865-868.

 

Stephen, R.A., 1982.  Travel-time curves for a simple sea floor model.  Marine Geophysical Research, 5, 315-326.

 

Crampin, S., Stephen, R.A., and McGonigle, R., 1982.  The polarizations of P-waves in anisotropic media.  Geophys. J.R. astr. Soc., 68, 477-485.

 

*Emerman, S.H., Schmidt, W., and Stephen, R.A., 1982.  An implicit finite-difference formulation of the elastic wave equation.  Geophysics, 47, 1521-1526.

 

Stephen, R.A., 1983.  The Oblique Seismic Experiment on DSDP Leg 70.  In:  Cann, J.R., Langseth, M.G., Honnorez, J., Von Herzen, R.P., White, S.M., et al., Init. Repts. DSDP, 69:  Washington, D.C. (U.S. Government Printing Office), 301-308.

 

Stephen, R.A., 1983.  A comparison of finite difference and reflectivity seismograms for marine models.  Geophys. J. R. astr. Soc., 72, 39-57.

 

Stephen, R.A., and Harding, A.J., 1983.  Travel time analysis of borehole seismic data.  J. Geophys. Res., 88, 8289-8298.

 

Stephen, R.A., Johnson, S., and Lewis, B.T.R., 1983.  The Oblique Seismic Experiment on DSDP Leg 65.  In:  Lewis B.T.R., Robinson, P., et al, Init. Repts. DSDP, 65:  Washington (U.S. Government Printing Office), 319-326.

 

*Emerman, S.H., and Stephen, R.A., 1983, Comment on "Absorbing boundary conditions for acoustic and elastic wave equations" by R. Clayton and B. Engquist.  Bull. seism. soc. Am., 73, 661-666.

 

Stephen, R.A., 1984a.  Finite difference seismograms for laterally varying marine models.  Geophys. J.R. astr. Soc., 79, 184-198.

 

Stephen, R.A., 1984b.  Synthetic vertical seismic profiles by the method of finite differences.  In:  Toksoz, M.N. and Stewart, R.R., Vertical Seismic Profiling, Part B:  Advanced Concepts, Geophysical Press, Amsterdam, 63-79.

 

Stephen, R.A., 1984c.  Borehole seismic experiments and the structure of oceanic crust.  In: Toksoz,  M.N. and Stewart, R.R., Vertical Seismic Profiling, Part B:  Advanced Concepts, Geophysical Press, Amsterdam, 351-374.

 

Stephen, R.A., 1985.  Finite difference synthetic acoustic logs with sharp, rough interfaces.  Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 101-123.

 

Stephen, R.A., 1985.  Seismic anisotropy in the upper oceanic crust.  J. Geophys. Res., 90, 11,383-11,396.

 

Stephen, R.A., and Bolmer, S.T., 1985.  The direct wave root in marine seismology.  Bull. seism. Soc. Am., 75, 57-67.

 

Stephen, R.A., Pardo-Casas, F. and Cheng, C.H., 1985.  Finite difference synthetic acoustic logs.  Geophysics, 50, 1588-1609.

 

Salisbury, M.H., Scott, J.H., Auroux, C., Becker, K., Bosum, W., Broglia, C., Carlson, R.L., Fisher, A., Gieskes, J.M., Holmes, M., Hoskins, H., Legrand, J., Moos, D., Rio, D., Stephen, R., and Wilkens, R., 1985.  Ocean Drilling Program; looking down an old hole.  Nature (London), 316, 682.

 

*Kong, L., Brocher, T.M., and Stephen, R.A., 1985.  Spreading rate independence of oceanic seismic layer 2.  Geophys. Res. Lett., 12, 219-222.

 

*Little, S.A., and Stephen, R.A., 1985.  Costa Rica Rift Borehole Seismic Experiment, Deep Sea Drilling Project Hole 504B, Leg 92.  In:  Anderson, R.N., Honnorez, J., Becker, K. et al., Init Repts. DSDP, 83, Washington (U.S. Govt. Printing Office), 517-528.

 

Stephen, R.A., 1986.  Synthetic acoustic logs over bed boundaries and horizontal fissures, Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 365-413.

 

Stephen, R.A., 1987.  A finite difference formulation of Biot's equations for vertically heterogeneous full waveform acoustic logging problems.  Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 115-123.

 

Stephen, R.A., Duennebier, F.K., Bellows, D.R., and Inderbitzen, A., 1987.  Wireline re-entry test on DSDP Leg 88.  In:  Duennebier, F.K., Stephen, R.A., Gettrust, J.F., et al., Init. Repts. DSDP, 88:  Washington (U.S. Government Printing Office), 59-63.

 

*Dougherty, M.E., and Stephen, R.A., 1987.  Geoacoustic scattering from seafloor features in the ROSE area.  J. acoust. Soc. Am., 82, 238-256.

 

Stephen, R.A., 1988a.  Lateral heterogeneity in the upper oceanic crust at DSDP Site 504.  J. Geophys. Res., 93, 6571-6584.

 

Stephen, R.A., 1988b.  A review of finite difference methods for seismo-acoustic problems at the sea floor.  Reviews of Geophysics, 26, 445-458.

 

Stephen, R.A., 1988c.  Finite difference methods for bottom-interaction problems.  In:  Lee, D., Sternberg, R.L. and Schultz, M.H. (Editors), Computational Acoustics:  Wave Propagation.  Elsevier Science Publishers B.V., 225-238.

 

*Dougherty, M.E., and Stephen, R.A., 1988.  Seismic energy partitioning and scattering in laterally heterogeneous ocean crust.  Pure Appl. Geophys., 128, 195-229.

 

*Senske, D.A., and Stephen, R.A., 1988.  A seismic reflection survey of DSDP Sites 417 and 418.  Proc. O.D.P., Vol. 102.  (Scientific Results), 3-17.

 

Swift, S.A., Stephen, R.A., and Hoskins, H., 1988.  Structure of upper oceanic crust from an Oblique Seismic Experiment at site 418A, Western North Atlantic.  Proc. O.D.P. Vol. 102 (Scientific Results), 97-124.

 

Legrand, J., Echardour, A., Floc'h, H., Floury, L., Gieskes, J., Harmegnies, F., Loaec, G., Pozzi, J.-P., Raer, Y., and Stephen, R.A., 1989.  CAMPAGNE FARE:  Wireline re-entry of DSDP Hole 396B using the NADIA system.  Eos, Transactions, American Geophysical Union, 70, 729 - 730 and 741.

 

Swift, S.A., and Stephen, R.A., 1989.  Lateral heterogeneity in the seismic structure of upper oceanic crust, western North Atlantic.  J. Geophys. Res., 94, 9303 -9322.

 

Worthington, P.F., Anderson, R.N., Jarrard, R.D., Becker, K., Bell, J.S., Salisbury, M.H., and Stephen, R.A., 1989.  Scientific applications of downhole measurements in the ocean basins.  Basin Research, 1, 223-236.

 

Stephen, R.A., 1990.  Solutions to range-dependent benchmark problems by the finite difference method.  J. Acoust. Soc. Am., 87, 1527-1534.

 

Burns, D.R. and Stephen, R.A., 1990.  Three dimensional numerical modelling of geoacoustic scattering from seafloor topography.  J. Acoust. Soc. Am., 88, 2338-2345.

 

Koelsch, D.E., Goldsborough, R. G., Berteaux, H., and Stephen, R. A., 1990.  A multi-node three component seismic system for Deep Sea Drilling Project (DSDP) boreholes.  Proceedings of the Marine Technology Society Marine Instrumentation '90 Meeting, San Diego, California, 104-109.

 

Swift, S.A., Dougherty, M. E., and Stephen, R. A., 1990.  Finite difference seismic modelling of axial magma chambers.  Geophys. Res. Lett., 17, 2105-2108.

 

Stephen, R.A., 1991.  Finite difference modelling of shear waves.  In:  Hovem, J.M., Richardson, M.D., and Stoll, R.D.  Shear waves in marine sediments, Kluwer Academic Publishers, Dordrecht, The Netherlands, 471-478.

 

Stephen, R.A. and Swift, S.A., 1991.  LFASE Progress Report - March 1991.  WHOI document #697-S-91, 50pp.

 

*Dougherty, M. E. and Stephen, R. A., 1991.  Seismo/acoustic propagation through rough seafloors.  J. Acoust. Soc. Am., 90, 2637-2651.

 

Swift, S.A., Hoskins, H., and Stephen, R.A., 1991.  Seismic stratigraphy in a transverse ridge, Atlantis II fracture zone.  In: Von Herzen,R.P., Robinson,P.T., et al., 1991. Proc. ODP, Sci. Results, 118: College Station,TX (Ocean Drilling Program), 219-226.

 

Lowell, R.P. and Stephen, R.A., 1991.  Heat flow and lateral seismic velocity heterogeneities near DSDP Site 504.  Geology, 19, 1141-1144.

 

Bolmer, S.T., Buffler, R.T., Hoskins, H., Stephen, R.A., and Swift, S.A., 1992.  Vertical seismic profile at Site 765 and seismic reflectors in the Argo Abyssal Plain.  In: Gradstein, F.M., Ludden, J.N., et al., Proc. ODP, Sci. Results, 123, College Station, TX (Ocean Drilling Program), 583-600.

 

Swift, S.A. and Stephen, R.A., 1992.  How much gabbro is in ocean seismic layer 3? Geophys. Res. Lett., 19, 1871-1874.

 

Stephen, R.A., 1993.  A numerical scattering chamber for studying reverberation in the seafloor.  In: Ellis, D.D., Preston, J.R. and Urban, H.G. (Editors), Ocean Reverberation, Kluwer Academic Press, Dordrecht, The Netherlands, 227-232.

 

Stephen, R. A. and Dougherty, M. E., 1993.  Canonical seafloor models and the finite difference method for low-angle acoustic backscatter.  In:  Lau, R.L., Lee, D. and Robinson, A.R. (Editors), Computational Acoustics - Volume 1, Elsevier Science Publishers B.V. (North Holland), 227-246.

 

Ellis, D.D., Kampanis, N.A. and Stephen, R.A., 1993.  Calculations of ocean bottom and sub-bottom backscattering using a time-domain finite-difference code.  In: Ellis, D.D., Preston, J.R. and Urban, H.G. (Editors), Ocean Reverberation, Kluwer Academic Press, Dordrecht, The Netherlands, 125-130.

 

Stephen, R.A. and Swift, S.A., 1994.  Finite difference modeling of geoacoustic interaction at anelastic seafloors.  J.acoust. Soc. Am., 95, 60-70.

 

Stephen, R.A. and Swift, S.A., 1994.  Modeling seafloor geoacoustic interaction with the numerical scattering chamber.  J.acoust. Soc. Am., 96, 973-990.

 

Stephen, R.A., Koelsch, D., Berteaux, H., Bocconcelli, A., Bolmer, S., Cretin, J., Etourmy, N., Fabre, A., Goldsborough, R., Gould, M., Kery, S., Laurent, J., Omnes, G., Peal, K., Swift, S., Turpening, R. and Zani, C.,  1994.  The Seafloor Borehole Array Seismic System (SEABASS) and VLF ambient noise.  Marine Geophysical Researches, 16, 243-286.

 

Detrick, R., Collins, J., Stephen, R. and Swift, S., 1994.  In situ evidence for the nature of the seismic layer 2/layer 3 boundary in oceanic crust.  Nature, 370, 288-290.

 

Swift, S.A. and Stephen, R.A., 1994.  The scattering of a low-angle pulse beam by seafloor volume heterogeneities.  J.acoust. Soc. Am., 96, 991-1001.

 

Dougherty, M.E., Vincent, R.J., Swift, S.A. and Stephen, R.A., 1995.  Anisotropic seismic scattering in old Atlantic crust at Ocean Drilling Program Site 418A.  J.geophys.Res., 100, 10,095-10,106.

 

Stephen, R.A., 1996.  Modeling sea surface scattering by the finite difference method.  J.acoust.Soc.Am., 100, 2070-2078. 

 

*Bradley, C.R. and Stephen, R.A., 1996.  Modeling of seafloor wave propagation and acoustic scattering in 3-D heterogeneous media.  J.acoust. Soc. Am., 100, 225-236.

 

Holbrook, W.S., Hoskins, H., Wood, W.T., Stephen, R.A., Lizarralde, D., and the Leg 164 Science Party, 1996.  Methane hydrate and free gas on the Blake Ridge from vertical seismic profiling.  Science, 273, 1840-1842.

 

Kent, G.M., Swift, S.A., Detrick, R.S., Collins, J.A. and Stephen, R.A., 1996.  Evidence for active normal faulting on 5.9My old crust near Hole 504B on the southern flank of the Costa Rica Rift.  Geology, 24, 83-86.

 

Swift, S.A., Hoskins, H., and Stephen, R.A., 1996.  Vertical seismic profile into upper oceanic crust in Hole 504B.  Proc. ODP, Sci. Results, 148, College Station, TX (Ocean Drilling Program), 339-347.

 

Stephen, R.A., 1997.  Time domain finite difference methods for range dependent Biot media.  In:  Pace, N.G., Pouliquen, E., Bergam, O. and Lyons, A.P., Eds.  High Frequency Acoustics in Shallow Water, SACLANTCEN Conference Proceedings Series CP-45, 501-508.

 

*Bradley, C.R., Stephen, R.A., Dorman, L.M. and Orcutt, J.A., 1997.  Very low-frequency (0.2-10.0Hz) seismoacoustic noise below the seafloor.  J.geophys.Res., 102, 11,703-11,718.

 

*Greaves, R.J. and Stephen, R.A., 1997.  Seafloor acoustic backscattering from different geological provinces in the Atlantic Natural Laboratory.  J.acoust.Soc.Am., 101, 193-208.

 

Pecher, I.A., Holbrook, W.S., Stephen, R.A., Hoskins, H., Lizarralde, D., Hutchinson, D.R., and Wood, W.T., 1997.  Offset-vertical seismic profiling for marine gas hydrate exploration - is it a suitable technique?  First results from ODP Leg 164.  Proceedings of the 19th Offshore Technology Conference, Houston, 5-8 May, 1997, OTC-8295, 193-200.

 

Swift, S.A., Lizarralde, D., Hoskins, H. and Stephen, R.A.,  1998.  Velocity structure in upper ocean crust at Hole 504B from vertical seismic profiles.  J. geophys. Res., 103, 15,361-15,376.

 

Swift, S.A., Kent, G.K., Detrick, R.S., Collins, J.A., and Stephen, R.A., 1998.  Oceanic basement structure, sediment thickness, and heat flow near Hole 504B.  J. geophys. Res., 103, 15,377-15,391.

 

Swift, S.A., Lizarralde, D., Hoskins, H. and Stephen, R.A.,  1998.  Seismic attenuation in upper oceanic crust at Hole 504B.  J. geophys. Res., 103, 27,193-27,206.

 

Stephen, R.A., 2000.  Optimum and standard beam widths for numerical modeling of interface scattering problems.  J. acoust. Soc. Am., 107, 1095-1102.

 

Dick, H.J.B., Natland, J.H., Alt, J.C., Bach, W., Bideau, D., Gee, J.S., Haggas, S.,Hertogen, J.G.H., Hirth, G., Holm, P.M., Ildefonse, B., Iturrino, G.J., John, B.E., Kelley, D.S., Kikawa, E., Kingdon, A., LeRoux, P.J., Maeda, J., Meyer, P.S., Miller, D.J., Naslund, H.R., Niu, Y.-L., Robinson, P.T., Snow, J., Stephen, R.A., Trimby, P.W., Worm, H.-U., and Yoshinobu, A.,  2000.  A long in-situ section of the lower ocean crust:  results of ODP Leg 176 drilling at the Southwest Indian Ridge.  Earth. Planet. Sci.Letts., 179,  31-51.

 

*Greaves, R.J. and Stephen, R.A., 2000.  Low-grazing-angle monostatic acoustic reverberation from rough and heterogeneous seafloors.  J. acoust. Soc. Am., 108, 1013-1025.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., Stephen, R.A., Peal, K.R., Wooding, F.B., Spiess, F.N. and Hildebrand, J.A., 2001.  Broadband seismology in the oceans:  Lessons from the Ocean Seismic Network Pilot Experiment.  Geophys. Res. Lett., 28, 49-52.

 

Stephen, R.A., 2001.  FermatÕs principle for anisotropic elastic media,  In:  Hood. J.A. (Ed), Advances in anisotropy:  Selected theory, modeling and case studies.  Proceedings of the 7th International Workshop on Seismic Anisotropy (7IWSA), Society of Exploration Geophysics, Tulsa, 255-270.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A. and Stephen, R.A., 2002.  Upper mantle structure beneath the Hawaiian swell:  Constraints from the ocean seismic network pilot experiment. Geophys. Res. Lett., 29 (11),  doi: 10.1029/2001GL013302.

 Stephen, R.A., Kasahara, J.,  Acton, G.D. et al., 2003.  Proc. ODP, Init. Repts., 200, [CD-ROM].  Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547 and Available from World Wide Web:  <http://www-odp.tamu.edu/publications/200_IR/200ir.htm>. [Cited 2003-02-22]

 

Stephen, R.A., Spiess, F.N., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Vernon, F.L. and Wooding, F.B., 2003.  Ocean seismic network pilot experiment.  Geochem. Geophys. Geosyst., 4 (10), 1092, doi: 10.1029/2002GC000485.

 

*Greaves, R.J. and Stephen, R.A., 2003.  The influence of large-scale seafloor slope and average bottom velocity on low-grazing-angle monostatic acoustic reverberation.  J. acoust. Soc. Am., 113, 2548-2561.

 

Pecher, I.A., Holbrook, W.S., Sen, M.K., Lizarralde, D., Wood, W.T., Hutchinson, D.R., Dillon, W.P., Hoskins, H., and Stephen, R.A., 2003.  Seismic anisotropy in gas-hydrate- and gas-bearing sediments on the Blake Ridge - results from a walkaway vertical seismic profile. Geophys. Res. Lett., 30 (14), 1733, doi: 10.1029/2003GL017477.

 

Sutherland, F.H., Vernon, F.L., Orcutt, J.A., Collins, J.A. and Stephen, R.A., 2004.  Results from OSNPE:  Improved teleseismic earthquake detection at the seafloor.  Bull. seism. Soc. Am., 94, 1868-1878.

 

Bromirski, P.D., Duennebier, F.K., and Stephen, R.A., 2005.  Mid-ocean microseisms. Geochem. Geophys. Geosyst. 6: doi:10.1029/2004GC000768.

 

Stephen, R.A., Duennebier, F.K., Harris, D., Jolly, J., Bolmer, S.T., and Bromirski, P.D., 2006.  Data report:  Broadband seismic observations at the Hawaii-2 observatory, ODP Leg 200. In Kasahara, J., Stephen R.A., Acton, G. and Frey, F.A. (Eds.), Proc. ODP., Sci. Results, 200,  [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/200_SR/003/003.htm>. [Cited 2006-06-27]

 

Bolmer, S.T., Hoskins, H., and Stephen, R.A.,  2006.  Data Report: 4-kHz profiling with vertically separated source and receiver: A mini reflection survey around a deepwater drill hole.  In Kasahara, J., Stephen R.A., Acton, G. and Frey, F.(eds.), Proc. ODP., Sci. Results, 200, 1-05    [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/200_SR/VOLUME/CHAPTERS/005.PDF>. [Cited 2006-04-10]

 

Crawford, W., Stephen, R.A. and Bolmer, S.T., 2006.  A second look at low-frequency marine vertical seismometer data quality at the OSN-1 site for seafloor, buried, and borehole emplacements.  Bull.seism.Soc.Am., 96, 1952-1960.

 

Kasahara, J., Stephen, R.A., Acton, G.D., and Frey, F.A. (Eds.), 2006. Proc. ODP, Sci. Results, 200 [Online]. Available from World Wide Web: http://www -odp.tamu.edu/publications/200_SR/200sr.htm. [Cited 2006-09-11]

 

Kasahara, J. and Stephen, R.A., 2006.  Leg 200 synthesis:  A broadband seismic station in oceanic crust at the Hawaii-2 observatory and coring into the Nuuanu landslide,  In: Kasahara, J., Stephen, R.A., Acton, G.D., and Frey, F.A. (Eds.), 2006. Proc. ODP, Sci. Results, 200 [Online]. Available from World Wide Web: http://www - odp.tamu.edu/publications/200_SR/200sr.htm. [Cited 2006-09-11]

 

Sun, Y.F., Kasahara, J., Stephen, R.A., Bachle, G.T., Eberli, G.P., Hoskins, H., Nakamura, M. and Teng, Y.C., 2006.  Shallow seismic structure of Eastern Pacific ocean crust at ODP Site 1224. In Kasahara, J., Stephen R.A., Acton, G. and Frey, F.(eds.), Proc. ODP., Sci. Results, 200, 1-06  [Online]. Available from World Wide Web: <http://www-odp.tamu.edu/publications/200_SR/VOLUME/CHAPTERS/006.PDF>. [Cited 2006-04-10]

 

Suyehiro, K., Montagner, J.-P., Stephen, R.A., Araki, E., Kanazawa, T., Orcutt, J.A., Romanowicz, B., Sacks, S. and Shinohara, M., 2006.  Ocean seismic observatories.  Oceanography, 19, 144-149.

 

*Williams, C.M., Stephen, R.A., and Smith, D.K., 2006. Hydroacoustic events located at the intersection of the Atlantis (30¼N) and Kane (23¼40ÕN) Transform Faults with the Mid-Atlantic Ridge. Geochem. Geophys. Geosyst., 7, Q06015, doi:10.1029/2005GC001127.

 

Stephen, R.A., Bromirski, P.D. and Duennebier, F.K., 2007.  The effects of local structure on seafloor ambient noise at the Hawaii-2 Observatory.  Symposium on Underwater Technology and Workshop on Scientific Use of Submarine Cables and Related Technologies, Proceedings, IEEE, Catalog Number 07EX1770C, ISBN 1-4244-999 1208-0, 605-611.

 

Mercer, J.A., Colosi, J.A., Howe, B.M., Dzieciuch, M.A., Stephen, R.A. and Worcester, P.F., 2009.  LOAPEX: The long-range ocean acoustic propagation experiment.  IEEE J. Oceanic Eng., 34, 1-11.

 

Stephen, R. A., Bolmer, S. T., Dzieciuch, M. A., Worcester, P. F., Andrew, R. K., Buck, L.J., Mercer, J. A., Colosi, J. A., and Howe, B. M., 2009. "Deep seafloor arrivals:  An unexplained set of arrivals in long-range ocean acoustic propagation," J. acoust. Soc. Am.,  126, 599-606.

 

Stephen, R.A., 2009.  BOOK REVIEW:  Viscoelastic waves in layered media, by Roger D. Borcherdt.  J. acoust. Soc. Am., 126, 3374-3375.

 

Bromirski, P.D. and Stephen, R.A., 2012. Response of the Ross Ice Shelf, Antarctica, to ocean gravity-wave forcing.  Ann. Glac,, 53, 163-172.

 

Udovydchenkov, I.A., Stephen, R.A., Duda, T.F., Bolmer, S.T., Worcester, P.F., Dzieciuch, M.A., Mercer, J.A., Andrew, R.K., and Howe, B.M., 2012.  Bottom interacting sound at 50km range in a deep ocean environment.  J. acoust. Soc. Am., 132, 2224-2231.

 

Stephen, R.A., Bolmer, S.T., Udovydchenkov, I.A., Worcester, P.F., Dzieciuch, M.A., Andrew, R.K. , Mercer, J.A., Colosi, J.A., and Howe, B.M., 2013.  Deep seafloor arrivals in long range ocean acoustic propagation. J. acoust. Soc. Am., 134, 3307-3317.

 

Bromirski, P.D., Stephen, R.A. and Gerstoft, P., 2013.  Are deep-ocean microseisms observed on land?,  J. geophys. Res., 118, 3610-3629, doi:10.1002/jgrb.50268.

 

Freeman, S.E., D'Spain, G.L., Lynch, S.D., Stephen, R.A., Heaney, K.D., Murray, J.J., Baggeroer, A.B., Worcester, P.F., Dzieciuch, M.A., and Mercer, J.A., 2013. Estimating the horizontal and vertical direction-of-arrival of water-borne seismic signals in the northern Philippine Sea. J. acoust. Soc. Am., 134, 3282-3298.

 

Heaney, K.D., Campbell, R.L., Murray, J.J., Baggeroer, A.B., Scheer, E.K., Stephen, R.A., D'Spain, G.L. and Mercer, J.A., 2013.  Deep water towed array measurements at close range. J. acoust. Soc. Am., 134, 3230-3241.

 

Worcester, P.F., Dzieciuch, M.A., Mercer, J.A., Andrew, R.K., Dushaw, B.D., Baggeroer, A.B., Heaney, K.D., D'Spain, G.L., Colosi, J.A., Stephen, R.A., Kemp, J.N., Howe, B.M., Van Uffelen, L.J. and Wage, K.E., 2013.  The North Pacific Acoustic Laboratory deep-water acoustic propagation experiments in the Philippine Sea, J. acoust. Soc. Am., 134, 3359-3375.

 

Stephen, R. A., 2014. "BOOK REVIEW: Claus Prodehl and Walter D. Mooney:  Exploring the earth's crust:  history and results of controlled-source seismology GSA Memoir 208," Mar. Geophys. Res., 10.1007/s11001-014-9221-0.

 

Bromirski, P.D., Dietz, A., Gerstoft, P., Stephen, R.A., Bolmer, S.T., Wiens, D.,  Aster, R. and

           Nyblade, A., 2015.  Ross Ice Shelf vibrations.  Geophys. Res. Let., 10.1002/2015GL065284.

 

Diez, A., Bromirski, P.D., Gerstoft, P., Stephen, R.A., Aster, R., Nyblade, A. and Wiens, D.A., submitted.  Ice shelf structure derived from dispersion curve analysis of ambient noise, Ross Ice Shelf, Antarctica.  Geophys. J. Int.

 

Farrell, W.E., Berger, J., Bidlot, J., Dzieciuch, M., Munk, W., Stephen, R.A., Worcester, P., in prep.  Wave field around a moving cold front from ocean bottom acoustics. 

 

 

* - Graduate Student, Summer Student Fellow, or Student Employee under my supervision


OTHER PUBLICATIONS

 

Stephen, R.A., 1977.  Synthetic seismograms for the case of the receiver within the medium.  Publ. Inst. Geophys. Pol. Acad. Sc., A-4 (115), 249-265.

 

Bryan, W.B. et al, 1977.  Studying oceanic layer 2.  Geotimes, 22, 22-26.

 

Stephen, R.A., Louden, K.E., and Matthews, D. H., 1979.  The Oblique Seismic Experiment on DSDP Leg 52.  In:  Donnelly, T., Francheteau, J. Bryan, W., Robinson, P., Flower, M., Salisbury, M., Init Repts. DSDP, 51, 52, 53, Part 1:  Washington (U.S. Government Printing Office), 675-704.

 

Salisbury, M.H., Stephen, R.A., Hamano, Y., Johnson, D., Donnelly, M., Francheteau, J., and Christensen, N., 1979.  The physical state of the upper levels of Cretaceous oceanic crust from the results of logging, laboratory studies and the Oblique Seismic Experiment at DSDP Sites 417 and 418.  In:  Donnelly, T., Francheteau, J., Bryan, W., Robinson, P., Flower, M., Salisbury, M., Init. Repts. DSDP, 51, 52, 53, Part 2:  Washington (US Government Printing Office), 1579-1597.

 

Donnelly, T.W. et al., 1979.  Site 417.  In:  Donnelly, T., Francheteau, J., Bryan, W., Robinson, P., Flower, M., Salisbury, M. et al., Init. Repts. DSDP, 51, 52, 53 Part 1:  Washington (U.S. Government Printing Office), 23-350.

 

Donnelly, T.W. et al., 1979.  Site 418.  In:  Donnelly, T., Francheteau, J., Bryan, W., Robinson, P., Flower, M., Salisbury, M. et al., Init. Repts. DSDP, v. 51, 52, 53, Part 1:  Washington (U.S. Government Printing Office), 351-626.

 

Stephen, R.A., Duennebier, F., et al., 1983.  Borehole seismometer deployed.  Geotimes, 28, 16.

 

Stephen, R.A., Pardo-Casas, F., and Cheng, C.H., 1983.  Finite difference synthetic acoustic logs.  Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 4-1-4-26.

 

Hunt, M.M., Gove, L.A., and Stephen, R.A., 1983.  FINDIF:  A software package to create synthetic seismograms by finite differences.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-83-42.

 

Leinen, M., Rea, D.K., et al., 1983.  Advection in the East Pacific.  Nature, 304, 16.

 

Lewis, B.T.R. et al., 1983, Site 482.  In:  Lewis, B.T.R., Robinson, P. et al., Init. Repts. DSDP, 65:  Washington (U.S. Government Printing Office), 21-126.

 

Lewis, B.T.R. et al., 1983, Site 483.  In:  Lewis, B.T.R., Robinson, P. et al., Init. Repts. DSDP, 65:  Washington (U.S. Government Printing Office), 137-230.

 

Lewis, B.T.R. et al., 1983, Site 484.  In:  Lewis, B.T.R., Robinson, P. et al., Init. Repts. DSDP, 65:  Washington (U.S. Government Printing Office), 231-248.

 

Lewis, B.T.R. et al., 1983, Site 485.  In:  Lewis, B.T.R., Robinson, P. et al., Init. Repts. DSDP, 65:  Washington (U.S. Government Printing Office), 249-306.

 

Stephen, R.A., and Pardo-Casas, F., 1984.  Application of finite difference synthetic acoustic logs.  Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 135-165.

 

*Pardo-Casas, F., Cheng, C.H., and Stephen, R.A., 1984.  The study of wave propagation in a borehole using the finite difference method.  Full Waveform Acoustic Logging Consortium Annual Report, Earth Resources Laboratory, MIT, 103-134.

 

O.D.P. Leg 102 Scientific Party, 1985.  Old hole yields new information.  Geotimes, 30, 13-15.

 

Stephen, R.A., 1986.  Seismic anisotropy in the uppercrust at DSDP site 504 B.  In:  Akal, T. and Berkson, J.M., Ocean Seismo-acoustics, Plenum Press, New York, 599-607.

 

Auroux, C., and Stephen, R.A., 1986.  Geophysical Profiling, O.D.P. Leg 102.  Proc., Init. Repts. (Pt. A).  ODP, 102, 7-91.

 

Leg 92 Shipboard Scientific Party, 1986.  Site 504.  In:  Leinen, M., Rea, D.K., et al.,  Init.Repts. DSDP, 92: Washington, D.C. (U.S. Government Printing Office), pages 190-192.

 

Leg 102 Shipboard Scientific Party, 1986.  Site 418:  Bermuda Rise, Init. Repts. (Pt. A).  ODP, 102, 95-235.

 

Hunt, M.M., and Stephen, R.A., 1986.  A user's manual for finite difference synthetic seismogram codes on the Cyber 205 and Cray XMP-12.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-4-86.

 

Stephen, R.A., 1987.  Hybrid finite difference codes for long range propagation in laterally varying media.  RASCON Associates, P. O. Box 567, West Falmouth, MA  02574.

 

Stephen, R.A., 1987.  Borehole seismology.  WHOI Annual Report.

 

Stephen, R.A., Swift, S.A., and Bolmer, S.T., 1987.  Ambient noise analysis and finite difference modeling of VLF borehole seismic data.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-4-87.

 

Ali, H.B., Bibee, L.D., Stephen, R.A., Authement, M., and Beckleheimer, J., 1987.  Low frequency seismo-acoustic propagation in a sloping ocean environment:  measured results and numerical predictions.  In:  Acoustics and the Ocean Bottom, the proceedings of the II Federation of Acoustical Societies of Europe Conference (F.A.S.E.), Madrid, June, 1987.

 

Duennebier, F.K., Stephen, R.A., Gettrust, J. et al., 1987.  Init. Repts. DSDP 88:  Washington (U.S. Government Printing Office).

 

Hunt, M.M., and Stephen, R.A., 1987.  Synthetic acoustic well-logging code (SYNACL).  Full Waveform Acoustic Logging Consortium Software Package V, Earth Resources Laboratory, MIT, 63-96.

 

Leg 88 Shipboard Scientific Party, 1987.  Site 581:  Downhole seismometer experiment in the Northwest Pacific.  In:  Duennebier, F.K., Stephen, R.A., Gettrust, J. et al., Init Repts. DSDP, 88:  Washington (U.S. Government Printing Office), 9-36.

 

Leg 88 Shipboard Scientific Party, 1987.  Introduction.  In:  Duennebier, F.K., Stephen, R.A., Gettrust, J. et al., Init. Repts. DSDP, 88:  Washington (U.S. Government Printing Office), 5-8.

 

Worthington, P.F., Anderson, R.N., Becker, K., Bell, J.S., Jarrard, R.D., Salisbury, M.H., and Stephen, R.A., 1987.  Downhole measurements for the Ocean Drilling Program.  In:  Report of the Second Conference on Scientific Ocean Drilling, European Science Foundation, Strasbourg, France, 131-136.

 

*Dougherty, M.E., and Stephen, R.A., 1988.  Seismic energy partitioning and scattering in laterally heterogeneous ocean crust.  In:  Scattering and attenuation of seismic waves, Part 1, ed. by Keiiti Aki and Ru-Shan Wu, Bickhauser Verlag, Boston, 447p.

 

Salisbury, M.H. et al., 1988.  Old oceanic crust:  Synthesis of logging, laboratory, and seismic data from Leg 102.  Proc. ODP, Vol. 102 (Scientific Results), 155-180.

 

Stephen, R. A., 1989.  Finite difference modelling of seismic wave propagation at the seafloor.  RASCON Associates, P.O. Box 567, West Falmouth, MA  02574.

 

Stephen, R.A., 1989.  Ambient noise in the seafloor.  WHOI Annual Report.

 

Spiess, F. N., Stephen, R. A., Beckleheimer, J., Farrell, W. E., Kent, G., and Pattee, A. W., 1989.  LFASE-Quick look report.  Johns Hopkins University, Applied Physics Laboratory.

 

Swift, S.A., Bolmer, S.T., and Stephen, R.A., 1989.  Site synthesis report of DSDP Sites 417 and 418.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI - 89 - 20.

 

Stephen, R.A., 1990.  A comparison of finite difference and reflectivity seismograms for marine models.  Reprinted in: Kelly.K.R. and Marfurt, K.J. (eds.), Numerical modelling of seismic wave propagation, Society of Exploration Geophysicists, Tulsa, OK, 391-409.

 

Stephen, R.A., 1990.  Ocean seismo-acoustic propagation in range-dependent environments - OSPREY - User's Manual.  RASCON Associates, P. O. Box 567, West Falmouth, MA, 02574.

 

Stephen, R.A., 1990.  Ocean seismo-acoustic propagation in range-dependent environments - OSPREY - Analysis Summary.  RASCON Associates, P. O. Box 567, West Falmouth, MA, 02574.

 

Berteaux, H., Bocconcelli, A., Koelsch, D., and Stephen, R., 1990.  A sea floor winch system for wire line re-entry of deep sea boreholes.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-05-90.

 

*Emerman, S.H., and Stephen, R.A., 1990, Comment on "Absorbing boundary conditions for acoustic and elastic wave equations" by R. Clayton and B. Engquist.  Reprinted in: Kelly.K.R. and Marfurt, K.J. (eds.), Numerical modelling of seismic wave propagation, Society of Exploration Geophysicists, Tulsa, OK, 463-467.

 

Little, S., Bolmer, S.T., and Stephen, R.A., 1990.  LFASE data processing system overview, Woods Hole Oceanog. Inst. Tech. Memo, WHOI-3-90.

 

Stephen, R.A., Bibee, D., Farrell, W.E., Pattee, W., Spiess, F.N., and Orcutt, J., 1991.  Ambient noise beneath the seafloor.  Trans. Am. Geophys. Union (EOS), 72, 161.

 

Allen, J. and Stephen, R.A., 1991.  Benchmarking the two-dimensional finite difference synthetic seismogram code.  Woods Hole Oceanog. Inst. Tech. Report, 91-31.

 

Bocconcelli, A., Berteaux, H. and Stephen, R.A., 1991.  Bottom array specifications for the Low Frequency Acoustic Seismic Experiment (LFASE).  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-05-91.

 

Bolmer, S.T., Swift, S.A. and Stephen, R.A., 1991.  LFASE borehole array data acquisition and reduction summary.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-04-91.

 

Stephen, R.A., 1992.  User's Guide for FINDIF at SACLANTCEN.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-07-92, 32 pages.

 

Koelsch, D.E. and Stephen, R.A., 1992.  Instrumentation quality shake table - a search in the United States.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-06-92, 25 pages.

 

Stephen, R.A., Koelsch, D., Berteaux, H., Bocconcelli, A., Bolmer, S., Cretin, J., Etourmy, N., Fabre, A., Goldsborough, R., Gould, M., Kery, S., Laurent, J., Omnes, G., Peal, K., Swift, S., Turpening, R. and Zani, C., 1993.  The seafloor borehole array seismic system (SEABASS).  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-01-93, 116 pages.

 

Orcutt, J.A. and Stephen, R.A., 1993.  OSN seismograph system is underway.  Seismic Waves (OSN Newsletter, JOI, Inc. Washington), 2, 3-5.

 

Scientific Party, 1993.  ARSRP - Initial report - Acoustics experiment - R/V Cory Chouest - 5-26 July, 1993.  Office of Naval Research, Washington, D.C. (395 pages).

 

Caruthers, J.W., Fricke, R., and Stephen, R., 1994.  Acoustic reverberation at selected sites in the mid-Atlantic ridge region.  1994 NRL Review, 118-122.

 

Vernon, F., Orcutt, J. and Stephen, R., 1994.  Scientists conduct wet-hole experiment at Pinon Flat.  Seismic Waves (OSN Newsletter, JOI, Inc. Washington), 3, 1-3.

 

Stephen, R.A., 1995.  Are borehole seismometers 'better' than seafloor or shallow buried seismometers?  In:  Broadband seismology in the oceans:  Towards a five year plan.  JOI, Inc. Washington, 60-65.

 

Stephen, R.A., Koelsch, D.E., Peal, K.R., Vernon, F., Orcutt, J., Bradley, C.R. and Spiess, F.N., 1995.  SEABASS:  A deployment and recording system for broadband seafloor seismology.  In:  Montagner, J.-P., and Lancelot, Y. (eds.)  Multidisciplinary observatories on the deep seafloor.  JOI, Inc. Washington, 200-218.

 

Little, W.S. and Stephen, R.A., 1995.  AFRAME:  A video animation capability for displaying FINDIF numerical model output.  Woods Hole Oceanog. Inst. Tech. Memo, WHOI-02-95.

 

Swift, S.A., Little, W.S., and Stephen, R.A., 1995.  Signal and noise levels in numerical scattering chamber snapshots.  Woods Hole Oceanog. Inst. Tech. Memo., WHOI-01-95.

 

Stephen, R.A., 1996.  Porosity and scale issues in seafloor structure.  In:  BOREHOLE:  A plan to advance post-drilling sub-seafloor science.  JOI, Inc., Washington, 78.

 

Stephen, R.A., 1996.  Very low frequency ambient noise beneath the seafloor.  In:  BOREHOLE:  A plan to advance post-drilling sub-seafloor science.  JOI, Inc., Washington, 12-14.

 

Stephen, R.A., 1996.  Notes on CORK design.  In:  Cann, J. (ed.)  Event detection and response and a ridge-crest observatory.  Proceedings of the InterRidge Active Processes Working Group Workshop, Paris, France, January 16-18, 1995, page 48.

 

Stephen, R.A., Peal, K.R., Bolmer, S.T., Gould, M.R., Koelsch, D.E., Orcutt, J.A., Vernon, F., Offield, G., Willoughby, D., Hollinshead,C., Spiess, F.N., Hildebrand, J.A., Zimmerman, R. and Austin, G., 1996.  Progress report on the development of the seafloor borehole array seismic system (phase II) - July 14, 1992 to January 31, 1996.  Woods Hole Oceanog. Inst. Tech. Memo., WHOI-01-96, 331 pages.

 

Stephen, R.A., Butler, R., Chave, A., de Moustier, C.P., Hildebrand, J.A., Nagihara, S., and Von Herzen, R.P., 1996.  Drilling at the H2O long term seafloor observatory.  In:  Dick, H. and Mˇvel, C. (eds.), The oceanic lithosphere and scientific drilling into the 21st century.  Proceedings of ODP-InterRidge-IAVCEI Workshop, Woods Hole, MA, 26-29 May, 1996.

 

Stephen, R.A., Natland, J.H., Butler, R., Becker, K., Chave, A.D., Duennebier, F.K. and Bradley, C.R., 1997.  Deep sea drilling at the H2O observatory site.  Proceedings of the International Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, 25-28 February, 1997, pages 147-152.

 

Stephen, R.A. and Bradley, C.R., 1997.  SEABASS and seismoacoustic noise below the seafloor.  JAMSTEC Journal of Deep Sea Research, Special Volume:  Deep Sea Research in Subduction Zones, Spreading Centers and Backarc Basins.  JAMSTEC, Tokyo, pages 131-140.

 


Stephen, R.A., Orcutt, J.A., Peal, K.R., Vernon, F., Austin, G., Bolmer, S.T., Gould, M.R., Hollinshead, C., Koelsch, D.E., Offield, G. and Willoughby, D.F., 1997.  Tests of the broadband borehole seismic system (B3S2) at Scripps IGPP and the Pinon Flat Observatory - October 1994 to June 1995.  WHOI Tech. Memo., WHOI-02-97.

 

Stephen, R.A., Swift, S.A. and Greaves, R., 1997.  Bathymetry and sediment thickness survey of the Hawaii-2 Cable. WHOI Tech. Memo., WHOI-03-97.

 

Stephen, R.A. and Bradley, C.R., 1997.  Seismoacoustic noise below the seafloor.  In :  ODP's Greatest Hits - Abstracts, JOI, Inc., Washington, D.C.

         http://www.joi-odp.org/USSSP/Pubs/GreatHits/Abstracts1.html

 

Swift, S.A., Stephen, R.A., Lizzarralde, D., and Hoskins, H., 1997.  The velocity structure in upper oceanic crust at Hole 504B from vertical seismic profiles.  In :  ODP's Greatest Hits - Abstracts, JOI, Inc., Washington, D.C.

         http://www.joi-odp.org/USSSP/Pubs/GreatHits/Abstracts1.html

 

Stephen, R.A., 1998.  Ocean seismic network seafloor observatories.  Oceanus 41, 33-37 ( http://oceanusmag.whoi.edu/v41n1/stephen.html ).

 

Stephen, R.A., Austin, G.L., Bolmer, S.T., Chadwell, C.D., Collins, J.A., Jabson, D.M., Jonke, P., Goldsborough, R.G., Gould, M.R., Hildebrand, J.A., Hollinshead, C.B., Offield, D.G., Orcutt, J.A., Peal, K.R., Price, D.V., Rosenblad, S.G., Spiess, F.N., Vernon, F.L., Willoughby, D.F., and Wooding, F.B.  1998.  The Ocean Seismic Network Pilot Experiment  Deployment Cruise.  WHOI Tech. Memo., WHOI-02-98.

 

Goldsborough, R.G., Austin, G.L., Bolmer, S.T., Jabson, D.M., Jonke, P., Gould, M.R., Hildebrand, J.A., Hollinshead, C.B., Offield, D.G., Orcutt, J.A., Peal, K.R., Spiess, F.N., Stephen, R.A., Vernon, F.L., Willoughby, D.F., and Zimmerman, R.,  1998.  Broadband borehole seismic system integration tests:  Report of the system integration tests at MPL/SIO, November 17-25, 1997.  WHOI Tech. Memo., WHOI-03-98.

 

Natland, J.H., Dick, H.J.B., Miller, D.J., Alt, J.C., Bach, W., Bideau, D., Gee, J.S., Haggas, S., Hertogen, J.G.H., Hirth, G., Holm, P.M., Ildefonse, B., Iturrino, G.J., John, B.E., Kelley, D.S., Kikawa, E., Kingdon, A., LeRoux, P.J., Maeda, J., Meyer, P.S., Naslund, H.R., Niu. Y.-L., Robinson, P.T., Snow, J., Stephen, R.A., Trimby, P.W., Worm, H.-U., and Yoshinobu, A.  1998.  A long gabbro section in the oceanic crust; results of Leg 176 drilling, Southwest Indian Ridge.  JOIDES Journal, 24.

 

Stephen, R.A., Collins, J.A., Peal, K.R.,  Hildebrand, J.A., Orcutt, J.A., Spiess, F.N., and Vernon, F.L., 1999.  Seafloor seismic stations perform well in study.  Trans. AGU (EOS),  80, 592.

 

Stephen, R.A., Austin, G.L., Babcock, J., Bolmer, S.T., Collins, J.A., Gieskes, J.M., Gould, M.R., Hildebrand, J.A., Hollinshead, C.B., Jabson, D.M., Jonke, P.,  Orcutt, J.A., Peal, K.R.,  Price, D.V., Spiess, F.N., and Vernon, F.L., 1999.  The Ocean Seismic Network Pilot Experiment Recovery Cruise. WHOI Tech. Memo., WHOI-03-99.

 

Stephen, R.A., Cain, B., Faber, K., Gannon, J. and Maxwell, P., 1999.  Advantages and limitations of VectorSeis accelerometers versus geophones.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., Cain, B., Faber, K., Kappius, R., Maxwell, P., Roche, S. and Tessman, J., 1999.  Single-point versus multi-element string seismic measurements. Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Dick, H.J.B., Natland, J.H., Miller, D.J., Alt, J.C., Bach, W., Bideau, D., Gee, J.S., Haggas, S.,Hertogen, J.G.H., Hirth, G., Holm, P.M., Ildefonse, B., Iturrino, J., John, B.E., Kelley, D.S., Kikawa, E., Kingdon, A., LeRoux, P.J., Maeda, J., Meyer, P.S., Naslund, H.R., Niu, Y.-L., Robinson, P.T., Snow, J., Stephen, R.A., Trimby, P.W., Worm, H.-U., and Yoshinobu, A.,  1999.  Proc. ODP, Init. Repts., 176 [CD-ROM].  Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA.

 

Shipboard Scientific Party, 1999. Leg 176 Summary.  In Dick, H.J.B., Natland, J.H., Miller, D.J., et al., Proc. ODP, Init. Repts., 176:  College Station, TX (Ocean Drilling Program), 1-70.

 

Shipboard Scientific Party, 1999. Site 735.  In Dick, H.J.B., Natland, J.H., Miller, D.J., et al., Proc. ODP, Init. Repts., 176, 1-314 [CD-ROM].  Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA.

 

Stephen, R.A., Bolmer, S.T., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N., and Vernon, F.L., 2000.  The time dependence of ambient noise beneath the deep sea floor.  In:  "Exploring the earth at high resolution:  the IRIS Proposal, July 1, 2001 to June 30, 2006,  Incorporated Research Institutions for Seismology, Washington, August 2000, I-39.

 

Stephen, R.A., 2000.  Ambient seismic noise beneath the deep sea floor.  The Leading Edge. 19, 276-281.

 

Stephen, R.A., 2000.  Notes on amplitude and phase response of pendulum seismometers and accelerometers.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., Gannon, J. and Cain, B., 2000.  Specifications of micro-machined accelerometers for seismology. Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., 2000.  Notes on minimum phase wavelets and transfer functions.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., 2000.  Notes on strike and dip as descriptors for geophone orientations.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., 2000.  Notes on time series and spectra for geophones and accelerometers.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., Gannon, J., Cain, B., Faber, K., Kappius, R., Maxwell, P., Roche, S. and Tessman, J., 2000.  Quantifying vector fidelity. Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., and Stephen, R.A., 2000.  Broadband seismology in the oceans:  Lessons from the Ocean Seismic Network Pilot Experiment.  In:  "Exploring the earth at high resolution:  the IRIS Proposal, July 1, 2001 to June 30, 2006,  Incorporated Research Institutions for Seismology, Washington, August 2000, I-38.

 

Stephen, R.A., 2001. Data report: Physical properties measurements in ODP Hole 735B.  In Natland, J.H., Dick, H.J.B., Miller, D.J., and von Herzen, R.P. (eds.), Proc. ODP., Sci. Results, 176,  [Online].   Available from World Wide Web: 

         <http://www-odp.tamu.edu/publications/176_SR/chap_02/chap_02.htm>.

 

Stephen, R.A., Bolmer, S.T., Collins, J.A., Peal, K.R., Hildebrand, J.A., Orcutt, J.A., Spiess, F.N., and Vernon, F.L., 2001.  The time dependence of ambient noise beneath the deep sea floor.  In:  Romanowicz, B., Suyehiro, K., and Kawakatsu, H. OHP/ION Joint Symposium, Long-term observations in the oceans:  current status and perspectives for the future, January 21-27, Yamanashi, Japan, 84-87.

 

Stephen, R.A., Natland, J.H., Butler, R., Becker, K., Chave, A.D., Duennebier, F.K., 2001.  Drilling at the H2O long term seafloor observatory.  WHOI Technical Memorandum, WHOI-01-2001.

 

Stephen, R.A., 2001.  Notes on calibrating spectra at Input/Output.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., 2001.  More notes on spectra.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Stephen, R.A., 2001.  The frequency dependence of dynamic range for geophones and VectorSeis modules.  Input/Output Internal Report, Input/Output, Inc., Stafford, Texas.

 

Kasahara, J., Stephen, R.A., Baldauf, J., and Acton, G.D., 2001.  Leg 200 scientific prospectus:  Drilling at the H2O long-term seafloor observatory.   Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA.

 

Stephen, R.A., Kasahara, J., Acton, G.D., and the Leg 200 Scientific Party, 2002.  ODP Leg 200: Drilling at the Hawaii-2 Observatory (H2O) and the Nuuanu Landslide. JOIDES Journal, JOI, Inc., Washington, D.C. 18-23.

 

Stephen, R.A., Bolmer, S.T., Collins, J.A., Peal, K.R., Hildebrand, J.A., Orcutt, J.A., Spiess, F.N. and Vernon, F.L., 2002.  The Ocean Seismic Network Pilot Experiment.  In :  ODP's Greatest Hits 2, JOI, Inc., Washington, D.C.        http://www.joiscience.org/greatesthits2/pdfs/stephen.pdf

 

Stephen, R.A., 2002.  Ocean seismic network seafloor observatories.  FATHOM Learning Center. http://www.fathom.com/feature/122132/ .

Shipboard Scientific Party, 2002.  Leg 200 Preliminary Report:  Drilling at the Hawaii-2 Observatory (H2O) and the Nuuanu landslide. Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA. and Available from World Wide Web: <http://www-odp.tamu.edu/publications/prelim/200_prel/200PREL.PDF>. [Cited 2003-02-22]

 

Shipboard Scientific Party, 2002.  Leg 200:  Drilling at the Hawaii-2 Observatory (H2O) and the Nuuanu landslide - Downhole Logging Summary. Available from:  Ocean Drilling Program, Texas A&M University, College Station, TX 77845-9547, USA. and Available from World Wide Web: <http://www.ldeo.columbia.edu/BRG/ODP/ODP/LEG_SUMM/200/leg200.html>. [Cited 2003-02-22]

 

Stephen, R.A., Kasahara, J., Acton, G.D. and the ODP Leg 200 Scientific Party, 2003.  Ocean crustal drilling at the Hawaii-2 Observatory.  The third international workshop on Scientific Use of Submarine Cables and Related Technologies, Komaba Campus, The University of Tokyo, Tokyo, Japan, June 25-27, 2003 (IEEE Catalog  Number: 03EX660, SEIKEN Symposium 35).

 

Butler, R., Duennebier, F.K., Filloux, J.H., Harris, D., Mandea, M., Orcutt, J.A., Smith, K.D., Stephen, R.A., Tarits, P., Vernon, F.L. and Wooding, F.B. (2003). "2003-2004 upgrades and additions to the Hawaii-2 Observatory, in Proceedings of the 3rd International Workshop on Scientific Use of Submarine Cables and Related Technologies." IEEE Catalog Number 03EX660 315: 14-18.

 

Kasahara, J., S. Haraguchi, M. Nakamura, R. Stephen and Leg 200 Shipboard Party, 2003.  Leg 200: Drilling at the Hawaii-II observatory (H2O) site and Nuuanu Landslide site, Monthly Chikyu, Special Vol., 40, 172-179, 2003 (In Japanese).

 

Odom, R.I. and Stephen, R.A., 2004.  Proceedings, Seismo-acoustic applications in marine geology and geophysics workshop, Woods Hole Oceanographic Institution, 24-26 March 2004.  Applied Physics Laboratory University of Washington Technical Report, APL-UW TR 0406.  (Print and CD versions.)

 

Araki, E., Shinohara,  M., Kanazawa, T., Suyehiro, K. and Stephen,  R.A., 2005.  T-phase dynamics in the Western Pacific. In:  Papadakis, J.S. and Bjorno, L. (Eds), Proceedings of the International Conference on Underwater Acoustics Measurements, Heraklion, Greece, June 28-July 1, 2005.

 

Stephen, R.A. and Bolmer, S.T., 2006.  Notes for Geoacoustic_TDFD.  WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2006-03.

 

Stephen, R.A., Pettigrew, T., Becker, K. and Spiess, F., 2006.  SeisCORK Meeting Report.  WHOI Technical Memorandum, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-01-2006.

 

Stephen, R.A., Pettigrew, T., and Petitt, R., 2006.  SeisCORK Engineering Design Study.  WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2006-10.

 

Bolmer, S.T. and Stephen, R.A., 2006.  User's Guide for PLOT_FINDIF.  WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2006-02.

 

Moran, K., Farrington, S., Massion, E., Paull, C., Stephen, R., Trehu, A., and Ussler, W., 2006.  SCIMPI:  A new seafloor observatory system.  Oceans '06, Boston.

 

Stephen, R.A., Swift, S.A., Bolmer, S.T. and Hoskins, H., 2007.  Third party borehole seismic experiments during the Ocean Drilling Program. Scientific Drilling Special Issue No. 1., 107-109.

 

Frashure, K.M., Chen, R.F., Stephen, R.A., Bolmer, S.T.,  Lavin, M., Strohschneider, D., Maichle, R., Micozzi, N. and Cramer, C.,  2007.  Waves and Tsunami Project, Science Scope, March, 2007, 16-21.

 

Stephen, R.A., Bolmer, S.T., Udovydchenkov, I., Worcester, P.F., Dzieciuch, M.A., Van Uffelen, L., Mercer, J.A., Andrew, R.K., Buck, L.J., Colosi, J.A., and Howe, B.M., 2008. NPAL04 OBS data analysis Part 1:  Kinematics of deep seafloor arrivals, WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2008-03, 94 pages.

 

McPeak, S.P., D'Spain, G.L. and Stephen, R.A., 2011. OBSAPS data acquisition system: Operator's manual and system overview. WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2011-05

 

Stephen, R.A., Kemp, J., McPeak, S.P., Bolmer, S.T., Carey, S., Aaron, E., Campbell, R., Moskovitz, B., Calderwood, J., Cohen, B., Worcester, P.F. and Dzieciuch, M.A., 2011. Ocean Bottom Seismometer Augmentation of the Philippine Sea Experiment - OBSAPS - Cruise Report. WHOI Technical Report WHOI-2011-04, Woods Hole Oceanographic Institution, Woods Hole, MA.

 

Stephen, R.A., Bolmer, S.T., Udovydchenkov, I.A., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M., 2012.  Analysis of deep seafloor arrivals observed on NPAL04. WHOI Technical Report WHOI-2012-09, Woods Hole Oceanographic Institution, Woods Hole, MA.

 

Djikpesse, H., Sobreira, J.F.F., Hill, A., Wrobel, K., Stephen, R.A., Fehler, M., Campbell, K., Carriere, O., and Ronen, S.,  2013.  Recent advances and trends in subsea technologies and seafloor properties characterization.  The Leading Edge, 32, 1214-1220.

 

McPeak, S.P., D'Spain, G.L., Stephen, R.A., von der Heyt, K., and Worcester, P.F., 2013. OBSANP data acquisition system: Operator's manual and system overview. WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA.  WHOI-2013-06.

 

Worcester, P.F. and Stephen. R.A., 2013.  Ocean bottom seismometer augmentation in the North Pacific (OBSANP):  Cruise quick-look report.  Scripps Institution of Oceanography. La Jolla, CA.

 

Stephen, R.A., Udovydchenkov, I.A., Worcester, P.F., Aaron, E., Bolmer, S.T., Carey, S., McPeak, S.P., Swift, S.A. and Dzieciuch, M.A.,  2014.  Ocean bottom seismometer augmentation in the North Pacific (OBSANP) - Cruise Report. WHOI Technical Report, Woods Hole Oceanographic Institution, Woods Hole, MA, WHOI-2014-06.

 

 

* - Graduate Student, Summer Student Fellow, or Student Employee under my supervision


ORAL REPORTS AND POSTERS

 

Stephen, R.A.  Synthetic seismograms for the case of the receiver within the medium.  15th General Assembly of European Seismological Commission, Krakow, September 22-28, 1976.

 

Stephen, R.A., and Matthews, D.H.  DSDP Leg 52 seismic experiment.  Geological Society of London, London, May 4, 1977.

 

Stephen, R.A., and Matthews, D.H.  The Oblique Seismic Experiment on DSDP Leg 52.  Fourth European Geophysical Society Meeting, Munich, Sept. 6-9, 1977.

 

Stephen, R.A., and Matthews, D.H.  The Oblique Seismic Experiment on DSDP Leg 52.  Fall AGU, San Francisco, 1977.

 

Salisbury, M.H., and Stephen, R.A.  The physical state of the upper levels of Cretaceous basement from the results of logging, laboratory studies, and the Oblique Seismic Experiment at DSDP Site 417 D.  The Second Maurice Ewing Memorial Symposium, Harriman, New York, March 19-25, 1978.

 

Stephen, R.A.  The Oblique Seismic Experiment in Oceanic Crust.  Spring AGU, Washington, 1979, EOS, 60, 325.

 

Purdy, G.M., Stephen, R.A., Rohr, K., and Ewing, J. I.  Shallow crustal structure of the flanks of the East Pacific Rise between 0 and 4.5 mybp from airgun seismic refraction profiles recorded during the ROSE Project.  Fall AGU, San Francisco, 1979, EOS, 60, 887.

 

Stephen, R.A.  Lateral inhomogeneity and anisotropy in upper oceanic crust.  EOS, 61.

 

Stephen, R.A., Scattering effects in marine seismology.  17th Annual Meeting, Society of Engineering Science, Atlanta, 1980.

 

Stephen, R.A., Seismic Anisotropy Observed in Upper Oceanic Crust, Salishan Conference on Computational Seismology, March 1981.

 

Stephen, R.A.  The Oblique Seismic Experiment on DSDP Leg 70, Spring AGU, Baltimore, 1981, EOS, 62, 109.

 

Stephen, R.A.  Synthetic seismogram techniques.  WHOI Annual Report, 1981.

 

*Emerman, S., and Stephen, R.A.  Finite difference seismograms for model ocean bottoms, Spring AGU,  Baltimore, 1981, EOS, 62, 327.

 

Schouten, H., and Stephen, R.A.  Seismic anisotropy observed in upper oceanic crust, Spring AGU, Baltimore, 1981, EOS, 62, 332.

 

Stephen, R.A., Purdy, G.M., and Gove, L.A.  High resolution deep tow seismic reflection profiles over 140 my old crust in the western central Atlantic Ocean, Fall AGU, San Francisco, 1981, EOS, 62, 953.

 

Stephen, R.A.  Compressional to shear wave conversion in oceanic crust.  SEG/USN Shear Waves and Pattern Recognition Symposium, NORDA, March 24-26, 1982.

 

Stephen, R.A.  The direct observation of shear wave particle motions in oceanic crust.  SEG/USN Shear Waves and Pattern Recognition Symposium, NORDA, March 24-26, 1982.

 

Stephen, R.A.  A comparison of finite difference and reflectivity seismograms for marine models.  Spring AGU, Philadelphia, 1982, EOS, 63, 377.

 

*Emerman, S.H., and Stephen, R.A.  Finite difference seismograms for seafloor structures.  Spring AGU, Philadelphia, 1982, EOS, 63, 377.

 

Stephen, R.A.  A comparison of finite difference and reflectivity seismograms for marine models.  Society of Exploration Geophysicists, Dallas, October 17-21, 1982, Technical Program, Abstracts and Biographies, 169-171.

 

Duennebier, F., Stephen, R. et al.  OSS IV:  The result of the downhole seismometer experiment, DSDP Leg 88.  Fall AGU, San Francisco, 1982, EOS, 64, 1025.

 

Stephen, R.A., and Pardo-Casas, F.  Finite difference modeling of wave propagation in a fluid-filled borehole, Spring AGU, Baltimore, 1983, EOS, 64, 268.

 

*Pardo-Casas, F., Cheng, C.H., and Stephen, R.A.  Comparison of finite difference and discrete wavenumber synthetic seismograms in a fluid-filled borehole, Spring AGU, Baltimore, 1983, EOS, 64, 268.

 

Stephen, R.A.  Finite difference synthetic seismograms for laterally varying marine models, Workshop meeting on seismic waves in laterally inhomogeneous media-II, Prague, Czechoslovakia, 7 June 1983.

 

Stephen, R.A., and Harding, A.J.  Travel time analysis of borehole seismic data, SEG Las Vegas, September 15, 1983, Expanded Abstracts, 599-601.

 

Rea, D.K., and DSDP Leg 92 Staff.  Post middle oligocene history of deep ocean hydrothermal activity, results of DSDP Leg 92.  Geological Society of America, 1983 Meeting.

 

*Little, S., and Stephen R.  Costa Rica Rift borehole seismic experiment, Fall AGU, San Francisco, 1983, EOS, 64, 765.

 

Stephen, R.A.  Finite difference seismograms for laterally varying marine models, Fall AGU, San Francisco, 1983, EOS, 64, 773.

 

Stephen, R.A. Borehole seismic experiments at sea.  Workshop on Borehole Measurements and Interpretation in Scientific Drilling.  Sandia Report, SAND84-0288, 1984.

 

Stephen, R.A.  The 'Direct Wave Root' in marine seismology.  Spring AGU, Cincinatti, 1984, EOS, 65, 239.

 

*Pardo-Casas, F., Cheng, C.H., and Stephen, R.A.  The study of wave propagation in a borehole using the finite difference method.  SEG Atlanta, December, 1984, Expanded Abstracts, 12-15.

 

Stephen, R.A.  The 'Direct Wave Root' in marine seismology.  Spring AGU, Cincinatti, 1984, EOS, 65, 239.

 

Stephen, R.A.  Seismic anisotropy in the upper crust at DSDP Site 504B, Fall AGU, San Francisco, 1984, EOS, 65, 1007.

 

Bolmer, S.T., and Stephen, R.A.  Borehole seismic data from DSDP Site 504B, Fall AGU, San Francisco, 1984, EOS, 65, 1012.

 

*Kong, L., Brocher, T.M., and Stephen, R.A.  No spreading rate dependence on upper oceanic crustal elastic wave velocities.  Fall AGU, San Francisco, 1984, EOS, 65, 1007.

 

Baggeroer, A., Duckworth, G., and Stephen, R.A.  On the relative amplitudes between primary and multiple signals from seismic refractions in oceanic crust.  Fall AGU, San Francisco, 1984, EOS, 65, 1012.

 

Stephen, R.A.  Oblique incidence borehole seismic measurements and interpretation.  Seism. Soc. Am., Austin, April 1985.  (Invited Lecture).

 

Stephen, R.A.  Seismic anisotropy in the upper crust at DSDP Site 504B.  NATO Advanced Study Institute on Ocean Seismo-Acoustics, La Spezia, June 1985.

 

Stephen, R.A.  Shear wave birefringence and anisotropy in the upper oceanic crust, SEG Washington, D.C., October, 1985, Expanded Abstracts, 365-368.

 

Stephen, R.A.  Lateral variability in the upper crust at DSDP Site 504.  Fall AGU, San Francisco, 1985, EOS, 66, 977.

 

Bolmer, S.T., and Stephen, R.A.  Seismic anisotropy in the upper crust at DSDP Site 418.  Fall AGU, San Francisco, 1985, EOS, 66, 949.

 

*Dougherty, M.E. and Stephen, R.A.  Seismic scattering from seafloor features in the ROSE area.  Fall AGU, San Francisco, 1985, EOS, 66, 983.

 


Schmidt, H., Ursin, B., Stephen, R.A., Tango, G., and Arntsen, B.  Comparison of dynamic ray tracing, discrete wavenumber and finite difference methods for Vertical Seismic Profile (VSP) synthesis with applications to marine seismic resolution.  SEG/USN High Resolution Geophysics Symposium, NORDA, March, 1986.

 

Stephen, R.A.  Finite difference methods for bottom-interaction problems.  First IMACS Symposium on Computational Ocean Acoustics, Yale University, August 1986.

 

Swift, S.A., and Stephen, R.A.  Lateral variability and anisotropy of the shallow oceanic crust at DSDP Site 418 in the Western North Atlantic.  Fall AGU, San Francisco, 1986, EOS, 67, 1222.

 

Stephen, R.A., and Holzrichter, M., VLF pulse propagation in range dependent geoacoustic waveguides.  Fall ASA, Anaheim, 1986, J. Acoust. Soc. Am., 80, S53.

 

Stephen, R.A.  Benchmark models by the method of finite differences for VLF propagation in bottom-interacting ocean acoustics.  Fall ASA, Anaheim, 1986, J. Acoust. Soc. Am., 80, S21.

 

*Dougherty, M.E., and Stephen, R.A.  Geoacoustic scattering from seafloor features in the ROSE area.  Fall ASA, Anaheim, 1986, J. Acoust. Soc. Am., 80, S115.

 

Stephen, R.A., and Cheng, C.H.  Synthetic acoustic logs over bed boundaries and horizontal fissures, SEG Houston, November, 1986, Expanded Abstracts, 23-25.

 

Stephen, R.A.  Finite difference solutions to benchmark wedge problems.  Spring ASA, Indianapolis, 1987, J. Acoust. Soc. Am., 81, S40.

 

Bolmer, S.T., and Stephen, R.A.  Seismic wave propagation in laterally varying oceanic crust.  Spring AGU, Baltimore, 1987, EOS, 68, 352.

 

*Dougherty, M.E., and Stephen, R.A.  Coherence of seismic propagation in the sea floor.  Spring AGU, Baltimore, 1987, EOS, 68, 352.

 

Stephen, R.A.  Borehole seismic experiments and the structure of oceanic crust.  Spring AGU, Baltimore, 1987, EOS, 68, 268 (Invited Lecture).

 

Stephen, R.A.  Seismic anisotropy in the upper oceanic crust - a review.  Fall ASA, Miami, 1987, J. acoust. Soc. Am., 82, S88 (Invited Lecture).

 

Stephen, R.A.  Lateral heterogeneity in the upper oceanic crust at DSDP Site 504.  Fall AGU, San Francisco, 1987, EOS, 68, 1372.

 

*Dougherty, M.E., and Stephen, R.A.  Geoacoustic propagation through random sea floor models.  Fall ASA, Miami, 1987, J. Acoust. Soc. Am., 82, S123.

 

*Dougherty, M.E., and Stephen, R.A.  Secondary Stoneley wave generation by scattering from heterogeneities in the upper oceanic crust.  Fall AGU, San Francisco, 1987, EOS, 68, 1372.

 

Bolmer, S.T., Dougherty, M.E., and Stephen, R.A.  Seismic signal degradation due to scattering in laterally heterogeneous ocean crust.  Fall AGU, San Francisco, 1987, EOS, 68, 1375.

 

*Fricke, J.R., Stephen, R.A., and Baggeroer, A.B. Numerical modeling of the scattered acoustic field from elastic ice.  Spring ASA, Seattle, 1988, J. Acoust. Soc. Am., 83, 537.

 

*Dougherty, M.E., and Stephen, R.A.  Seismic wave propagation through laterally heterogeneous upper oceanic crust.  In: Workshop meeting on seismic waves in laterally inhomogeneous media III, European Seismological Commission, Prague, June 13-18, 1988.

 

*Dougherty, M.E., and Stephen, R.A.  Time domain finite difference modelling of scattering from infinite elastic cylinders.  Fall ASA, Honolulu, 1988, J. Acoust. Soc. Am., 84, S 52.

 

Stephen, R.A.  Geoacoustic scattering from the Pacific seafloor.  Fall ASA, Honolulu, 1988, J. Acoustic Soc. Am., 84, S 195 (Invited Lecture).

 

Stephen, R.A.  The finite difference method for time domain solutions to range dependent bottom interaction problems.  Fall ASA, Honolulu, 1988, J. Acoust. Soc. Am., 84, S 51.

 

Hoskins, H., Swift, S.A., and Stephen, R.A.  A vertical seismic profile in ocean layer 3, Atlantis II Fracture Zone, Southwest Indian Ridge.  Fall AGU, San Francisco, 1988, EOS, 69, 1402.

 

Swift, S.A., Dougherty, M.E., and Stephen, R.A.  Initial results of finite difference seismogram modelling of spreading center magma chambers.  Fall AGU, San Francisco, 1988, EOS, 69, 1319.

 

Legrand, J., Echardour, A., Floc'h, H., Floury, L., Harmegnies, F., Loaec, G., Raer, Y., Gieskes, J., Pozzi, J.-P., and Stephen, R.A.  Wireline re-entry of DSDP Hole 396B using the NADIA system.  Fall AGU, San Francisco, 1988, EOS, 69, 1401.

 

Stephen, R.A., Koelsch, D.E., Bibee, D., Farrell, W. E., Pattee, W., and Spiess, F. N.  A borehole seismic array in the deep sea floor.  Fall AGU, San Francisco, 1989, EOS, 70, 1216.

 

*Dougherty, M.E. and Stephen, R.A.  Finite difference modelling of scattering in ULF/VLF (0.001 to 50 Hz) Seismo-acoustic noise in the ocean, Proceedings of a Workshop at the Institute for Geophysics, University of Texas, Austin, 1989.

 

*Fricke, J.R., Stephen, R.A., and Baggeroer, A.B.  Numerical modeling of the scattered acoustic field from elastic ice.  In:  Obrochta, R.  "Arctic Acoustic Workshop Proceedings", 14-15 February, 1989, MIT, 106-118.

 

Spiess, F. N., Boegeman, D. E., Lowenstein, C., Lawhead, R., and Stephen, R. A.  Wireline entry into deep sea boreholes:  Technology and operations.  Fall AGU, San Francisco, 1989, EOS, 70, 1305.

 

Stephen, R.A.  Finite difference modelling of shear waves.  NATO Symposium on shear waves in marine sediments, La Spezia, October, 1990.

 

Stephen, R.A., Bibee, D., Farrell, W.E., Pattee, W., Spiess, F.N., and Orcutt, J.  Ambient noise and elastic wave propagation in the deep seafloor.  Spring ASA, State College Penn., 1990, J. Acoust. Soc. Am., 87, S111.

 

Stephen, R.A., and Dougherty, M.E.  Finite difference methods for low-angle seafloor scatter.  Fall ASA, La Jolla, 1990, J. Acoust. Soc. Am., 88, S104 (Invited Lecture).

 

Bibee, L.D., Pattee, W., Stephen, R., Farrell, W., Spiess, F., Orcutt, J., and Hansen, S.  Seismo-acoustic propagation to sub-bottom seismic sensors.  IUSS Technical Review, San Diego, 1990.

 

*Dougherty, M.E., and Stephen, R.A.  Seafloor sediments and their influence on low angle acoustic backscatter from the ocean bottom.  Fall ASA, La Jolla, 1990, J. Acoust. Soc. Am., 88, S109.

 

Koelsch, D. E., Berteaux, H. O., Stephen, R., Bocconcelli, A., and Goldsborough, R.  An autonomous borehole seismic array and recording system for the deep sea floor.  SEG/USN Deep Ocean Technology Symposium, Stennis Space Center, 1990.

 

Koelsch, D. E., Goldsborough, R. G., Berteaux, H. O., and Stephen, R. A.  A multi-node three component seismic system for Deep Sea Drilling Project (DSDP) boreholes.  Marine Technology Society , Marine Instrumentation '90, San Diego, California. 1990.

 

Stephen, R.A.  Geo-acoustic backscattering problems by the finite difference method.  Spring SCNR Review, SACLANT Undersea Research Centre, La Spezia, Italy, March, 1991.

 

Stephen, R.A.  A numerical scattering chamber for studying low angle seafloor backscatter.  Fall ASA, Houston, 1991, J. Acoust. Soc. Am., 90, 2276 (Invited Lecture).

 

Stephen, R.A.  Acoustic and elastic wave propagation at continental margins.  Fall AGU, San Francisco, 1991, EOS, 72, S303.

 

Stephen, R.A.  A numerical scattering chamber for studying low angle seafloor backscatter.  1991 Fall Research Symposium, Bottom/subbottom Acoustic Reverberation Special Research Program, WHOI, Woods Hole, MA.

 

Stephen, R.A., Dougherty, M.E., and Little, W.S.  Finite difference methods for low-angle seafloor scatter.  Second Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, March, 1991.

 

*Dougherty, M.E., and Stephen, R.A.  Canonical seafloor models and the effects of sediments on low-angle acoustic backscatter.  Second Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, March, 1991.

 

*Dougherty, M.E., and Stephen, R.A.  Canonical seafloor models and the finite difference method for low-angle acoustic backscatter.  Third IMACS Symposium on Computational Acoustics, Harvard University, June, 1991.

 

Little, W.S., and Stephen, R.A.  A video animation facility for studying finite difference synthetic seismic wave fields and other time-varying multi-dimensional data.  Second Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, March, 1991.

 

Swift, S.A. and Stephen, R.A.  Seismic attenuation in ocean layer 3: results from a VSP at ODP Hole 735B.  Fall AGU, San Francisco, 1991, EOS, 72, S304.

 

Vincent, R.J., Dougherty, M.E., Swift, S.A., and Stephen, R.A.  Azimuthal dependence of seismic scattering seen in coda recorded in OSE data from Site 418A.  Fall AGU, San Francisco, 1991, EOS, 72, S303.

 

Stephen, R.A.  A numerical scattering chamber for studying reverberation in the seafloor.  NATO Symposium on Ocean Reverberation, La Spezia, Italy, May 25-29, 1992.

 

Stephen, R.A.  Intrinsic attenuation and scattering in laterally inhomogeneous sediments.  Spring ASA, Salt Lake City, 1992, J. Acoust. Soc. Am., 91, 2462 (Invited Lecture).

 

Stephen, R.A.  Quantitative backscattering coefficients from the numerical scattering chamber.  1992 Fall Research Symposium, Bottom/subbottom Acoustic Reverberation Special Research Program, WHOI, Woods Hole, MA.

 

Stephen, R.A. and Bradley, C.  Three dimensional modeling of low angle backscatter from facets.  1992 Fall Research Symposium, Bottom/subbottom Acoustic Reverberation Special Research Program, WHOI, Woods Hole, MA.

 

Stephen, R.A., Koelsch, D., Cretin, J., and Laurent, J.  The seafloor borehole array seismic system (SEABASS).  International Symposium - "Ten Years of GEOSCOPE Broadband Seismology ", Paris, France, Sept  28-30, 1992.

 

Stephen, R.A. and Swift, S.A.  Finite difference modeling of geoacoustic interaction at anelastic seafloors.  Fall AGU, San Francisco, 1992, EOS, 73, 593.

 

Stephen, R.A. and Swift, S.A.  Two dimensional modeling of low angle backscatter from geologically realistic seafloors.  1992 Fall Research Symposium, Bottom/subbottom Acoustic Reverberation Special Research Program, WHOI, Woods Hole, MA.

 

Stephen, R.A., Swift, S.A. and Bradley, C.  The scattering of low grazing angle geoacoustic fields from rough seafloors.  Third Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, April, 1992.

 

*Bradley, C.R. and Stephen, R.A.  Very low frequency seismo-acoustic noise below the seafloor.  Spring ASA, Salt Lake City, 1992, J. Acoust. Soc. Am., 91, 2426.

 

Ellis, D.D., Kampanis, N. and Stephen, R.A.  Calculations of ocean bottom and sub-bottom backscattering using a time-domain finite-difference code.  NATO Symposium on Ocean Reverberation, La Spezia, Italy, May 25-29, 1992.

 

Orcutt, J.A., Stephen, R., Vernon, F., Koelsch, D., and Berger, J.  A prototype Ocean Seismic Network (OSN) deep-sea borehole seismograph.  International Symposium - "Ten Years of GEOSCOPE Broadband Seismology ", Paris, France, Sept  28-30, 1992.

 

Swift, S.A. and Stephen, R.A.  Seismic attenuation measurements on ocean gabbro and the composition of seismic layer 3.  Fall AGU, San Francisco, 1992, EOS, 73, 593 (Invited Lecture).

 

Stephen, R.A.  Modeling acoustic propagation in shallow range dependent environments.  Spring ASA, Ottawa, May 1993, J. Acoust. Soc. Am., 93, 2270.

 

Stephen, R.A., Shaw, P.R. and Caruthers, J.W.  Modeling deterministic features in the ARSRP acoustic data.  Fourth Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, December, 1993.

 

Stephen, R.A. and Bradley, C.R.  Three dimensional finite difference modeling of geoacoustic interaction at the seafloor.  SIAM 1993 Annual Meeting, Philadelphia, July 1993 (Invited Lecture).

 

Stephen, R.A. and Swift, S.A.  Finite difference modeling of geoacoustic interaction at anelastic seafloors.  International Conference on Theoretical and Computational Acoustics, Mystic, July, 1993.

 

Stephen, R.A. and Swift, S.A.  Finite difference modeling of geoacoustic interaction at anelastic seafloors.  Spring ASA, Ottawa, May 1993, J. Acoust. Soc. Am., 93, 2396.

 

Stephen, R.A. and Swift, S.A.  Quantitative backscattering coefficients from the numerical scattering chamber.  Fall ASA, Denver, October 1993, J. Acoust. Soc. Am., 94, 1784.

 

Stephen, R.A. and Swift, S.A.  Two dimensional modeling of low-angle backscatter from geologically realistic seafloors.  Fall ASA, Denver, October 1993, J. Acoust. Soc. Am., 94, 1800.

 

Stephen, R.A., Swift, S.A. and Shaw, P.R.  Modeling acoustic 'bright spots' from ARSRP Site 'A'.  Fourth Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, March 1993.

 

Stephen, R.A., Koelsch, D.E., and Swift, S.A.  The seafloor borehole array seismic system (SEABASS) and VLF ambient noise.  Fifth Annual IRIS Workshop, Waikoloa, June 1993.

 

Stephen, R.A. and Swift, S.A.  The numerical scattering chamber and seafloor scattering functions.  Fall AGU, San Francisco, 1993, EOS, 74(Supplement), 395.

 

*Bradley, C.R. and Stephen, R.A.  Three dimensional modeling of low-angle seismoacoustic backscatter.  Spring ASA, Ottawa, May 1993, J. Acoust. Soc. Am., 93, 2322.

 

*Bradley, C.R., Stephen, R.A. and Orcutt, J.A.  Very low frequency seismo-acoustic noise below the seafloor (0.2-10.0Hz).  Fifth Annual IRIS Workshop, Waikoloa, June 1993.

 

*Bradley, C.R., Stephen, R.A. and Orcutt, J.A.  VLF noise below the sea floor in the Blake-Bahama basin (0.2-10.0Hz).  Fall AGU, San Francisco, 1993, EOS, 74(Supplement), 450.

 

Caruthers, J.W., Fricke, J.R. and Stephen, R.A.  Acoustic reverberation at selected sites in the Mid-Atlantic Ridge region.  Fourth Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, December, 1993.

 

Detrick, R., Collins, J., Swift, S.A. and Stephen, R.A.  Evidence that the seismic layer 2/3 boundary occurs above the dike/gabbro transition in Hole 504B.  Fall AGU, San Francisco, 1993, EOS, 74(Supplement), 645, (Invited Lecture).

 

Shaw, P.R., Smith, D.K., Stephen, R.A. and Caruthers, J.W.  Multiscale, multisensor analysis of seafloor topography in the ONR Atlantic natural laboratory.  Fourth Annual Acoustic Reverberation SRP Scientific Meeting, Scripps Institution of Oceanography, December, 1993.

 

Swift, S.A. and Stephen, R.A.  The composition of ocean seismic layer 3 and attenuation measurements.  Fall AGU, San Francisco, 1993, EOS, 74(Supplement), 645, (Invited Lecture).

 

Stephen, R.A., Shaw, P.R., Greaves, R.J., and Caruthers, J.W.  Modeling deterministic features in the ARSRP data.  Spring ASA, Cambridge, MA, June 1994, J. Acoust. Soc. Am., 95, 2826.

 

Stephen, R.A. and Koelsch, D.E.  Deployment and recording system for broadband seafloor seismology.  Sixth Annual IRIS Workshop, Glendale, April 1994

 

Stephen, R.A. and Greaves, R.J.  Analysis of ARSRP acoustic data in the vicinity of Site A.  Acoustic Reverberation SRP Scientific Meeting, MIT, June 1994.

 

Stephen, R.A.  Optimal beamwidths for seafloor scattering problems.  Fall ASA, Austin TX, November 1994, J. Acoust. Soc. Am., 96, 3266.

 

Stephen, R.A. and Swift, S.A.  The scattering of a low-angle pulse-beam from seafloor volume heterogeneities.  Fall AGU, San Francisco, 1994, EOS, 75(Supplement), 579.

 

Stephen, R.A.  Physical properties of upper crust and sediments.  Ocean Borehole Laboratories, Instrumentation, and Sampling Program (OBLISP) Workshop, Miami, December 13-14, 1994 (Invited Lecture).

 

*Greaves, R.J. and Stephen, R.A.  Mean intensity maps near Site A.  Acoustic Reverberation SRP Scientific Meeting, MIT, June 1994.

 

Swift, S.A. and Stephen, R.A.  Linking Hole 504B to seismic reflection and oblique seismic results with a vertical seismic profile.  Fall AGU, San Francisco, 1994, EOS, 75(Supplement), 311.

 

Stephen, R.A.  Transient sounds in marine seismology.  Spring ASA, Washington, D.C., June 1995, J. Acoust. Soc. Am., 97, 3367.

 

Stephen, R.A.  Modeling sea surface scattering with the finite difference method.  Spring ASA, Washington, D.C., June 1995, J. Acoust. Soc. Am., 97, 3405.

 

Stephen, R.A.  Numerical solution of seafloor scattering problems.  Department of aerospace and mechanical engineering, Boston University.  October 20, 1995.  (Invited Lecture)

 

Stephen, R.A. and Swift, S.A.  The scattering of Gaussian pulse-beams at fluid-solid interfaces.  International Union of Geodesy and Geophysics XXI General Assembly, Boulder, July 1995, B387.

 

Stephen, R.A. and Swift, S.A.  Seismic wave propagation and scattering in strongly heterogeneous upper oceanic crust.  Fall AGU, San Francisco, 1995, EOS, 76(Supplement), F418. 

 

Stephen, R., Koelsch, D., Peal, K., Vernon, F., Orcutt, J., and Spiess, F.N.  SEABASS-II: A deployment and recording system for broadband seafloor seismology.  International Workshop on Multidisciplinary Observatories on the Deep Sea Floor, Marseille, January 11-13, 1995.

 

Stephen, R., Koelsch, D., Peal, K., Vernon, F., Bradley, C.R., Orcutt, J., and Spiess, F.N.  SEABASS: A deployment and recording system for seafloor borehole seismology.  International Union of Geodesy and Geophysics XXI General Assembly, Boulder, July, 1995, A375.

 

Collins, J.A., Detrick, R.S., Stephen, R.A., Kent, G.M., and Swift, S.A.  Hole 504B seismic experiment:  New constraints on the depth to the seismic layer 2/layer 3 boundary.  Fall AGU, San Francisco, 1995, EOS, 76(Supplement), F616. 

 

*Greaves, R.J. and Stephen, R.A.  Seafloor acoustic backscattering from different geological provinces in the Atlantic Natural Laboratory.  Acoustic Reverberation SRP Scientific Meeting, Woods Hole, July 1995.

 

*Greaves, R.J., Stephen, R.A. and Caruthers, J.W.  Seafloor acoustic backscattering from different geological provinces in the Atlantic Natural Laboratory.  Fall AGU, San Francisco, 1995, EOS, 76(Supplement), F554.

 

Kent, G.M., Swift, S.A., Detrick, R.S., Collins, J.A., and Stephen, R.A.  Evidence for active normal faulting on 5.9My old crust near Hole 504B on the southern flank of the Costa Rica Rift.  RIDGE RTI, June, 1995.

 

Orcutt, J., Vernon, F., Willoughby, D., Hollinshead, C., Offield, G., Stephen, R., Koelsch, D., and Peal, K.  Development of an ocean bottom broadband borehole seismometer package.  International Workshop on Multidisciplinary Observatories on the Deep Sea Floor, Marseille, January 11-13, 1995.

 

Swift, S.A. and Stephen, R.A.  Hole 504B seismic experiment: single channel seismic survey reveals faulting and basement relief near crustal boreholes.  Fall AGU, San Francisco, 1995, EOS, 76(Supplement), F616.

 

Vernon, F., Orcutt, J., Tolstoy, M., Stephen, R. and Peal, K.  An ocean bottom broadband borehole seismometer package for global seismic network observations.  International Union of Geodesy and Geophysics XXI General Assembly, Boulder, July, 1995, A375.

 

Stephen, R.A.  Ocean bottom scattering and marine systems.  WHOI-G&G Department Seminar, May 10, 1996.

 

Stephen, R.A.  Bottom penetration at sub-critical grazing angles by scattering.  Spring ASA, Indianapolis, May 1996, J. Acoust. Soc. Am., 99, 2475.

 

Stephen, R.A.  Time domain finite difference methods for broadband geoacoustic modeling in shallow water.  Workshop on Broadband Acoustic Propagation in Shallow Water, Naval Research Laboratory, Washington, D.C., 4-6 September, 1996.

 

Stephen, R.A.  High frequency bottom interaction in range dependent Biot media.  High Frequency Acoustics Workshop, Golden, CO, 16-18 April, 1996.  (Unable to give talk)

 

Stephen, R.A.  Time domain finite difference methods for range dependent Biot media.  Fall ASA, Honolulu, 2-6 December, 1996, J. Acoust. Soc. Am., 100, 2765.

 

Stephen, R.A.  Time domain finite difference methods in shallow water acoustics.  ONR/ARPA Shallow Water Acoustics Workshop,  Stennis Space Center, 1-3 October, 1996.

 

Stephen, R.A.  Deep sea borehole seismology.  Schlumberger Cambridge Research Center, Cambridge, U.K., November 1996.  (Invited Talk).

 

Stephen, R.A.  Optimal beams and minimal domains in numerical modeling of elastic wave propagation.  Fall AGU, San Francisco, 1996, EOS, 77(Supplement), F525.

 

Stephen, R.A. and Bolmer, S.T.  Interface waves in seafloor propagation and scattering problems.  Spring ASA, Indianapolis, May 1996, J. Acoust. Soc. Am., 99, 2552. (Invited Lecture)

 

Stephen, R.A. and Bradley, C.R.  Optimum beams and three-dimensional modeling of elastic wave propagation.  MIT Earth Resources Laboratory 10th Annual Founding Members Workshop, Woodstock, Vermont, July 16-18, 1996.

 

Stephen, R.A. and Bradley, C.R.  SEABASS and seismoacoustic noise below the seafloor.  JAMSTEC International Symposium on Deep Sea Research in Subduction Zones, Tokyo, December, 1996.  (Invited Talk).

 

Stephen, R.A., Butler, R., Chave, A., de Moustier, C., Hildebrand, J., Nagihara, S. and Von Herzen, R.  Drilling at the H2O long term seafloor observatory.  ODP-InterRidge-IAVCEI Workshop on the Oceanic Lithosphere and Scientific Drilling into the 21st Century, Woods Hole, May 26-28, 1996, 106.

 

Stephen, R.A., Dougherty, M.E., Vincent, R.J., and Swift, S.A.  Anisotropic seismic scattering in old Atlantic crust.  Seventh International Workshop on Seismic Anisotropy, Miami, February 19-23, 1996.

 

Stephen, R.A., Dougherty, M.E., Vincent, R.J., and Swift, S.A.  Anisotropic seismic scattering in old Atlantic crust.  European Seismological Commission, Reykjavik, September 1996.  (Unable to give talk.)

 

Stephen, R.A., Peal, K.R., Vernon, F., Orcutt, J.A., Bradley, C.R., and Spiess, F.N.  SEABASS:  A deployment and recording system for broadband seafloor seismology.  European Seismological Commission, Reykjavik, September 1996.  (Unable to give talk.)

 

Stephen, R.A., Suyehiro, K., Montagner, J.-P., Dziewonski, A. and Romanowicz, B.  Lithospheric drilling in support of the Ocean Seismic Network.  ODP-InterRidge-IAVCEI Workshop on the Oceanic Lithosphere and Scientific Drilling into the 21st Century, Woods Hole, May 26-28, 1996, 107.

 

*Bradley, C.R., Dorman, L., Stephen, R.A., and Sauter, A.  Correlation of seafloor noise directionality with seafloor topography: evidence from the LFAS and NOBS Experiments.  Fall AGU, San Francisco, 1996, EOS, 77(Supplement), F314. 

 

*Greaves, R.J. and Stephen, R.A.  Seafloor acoustic backscattering from different geological provinces in the Atlantic Natural Laboratory.  Spring ASA, Indianapolis, May 1996, J. Acoust. Soc. Am., 99, 2499.

 

Holbrook, W.S., Hoskins, H., Stephen, R.A., Lizarralde, D., Wood, W.T., and the Leg 164 Scientific Party.  Methane hydrate and free gas on the Blake Ridge from Vertical Seismic Profiling, ODP Leg 164.  Fall AGU, San Francisco, 1996, EOS, 77(Supplement), F322.

 

Holbrook, W.S., Hoskins, H., Wood, W.T., Stephen, R.A., and the Leg 164 Scientific Party.  Methane hydrate, bottom-simulating reflectors, and gas bubbles:  Results of vertical seismic profiles on the Blake Ridge.  MIT Earth Resources Laboratory 10th Annual Founding Members Workshop, Woodstock, Vermont, July 16-18, 1996.

 

Pecher, I.A., Holbrook, W.S., Stephen, R.A., Hoskins,H., Lizarralde, D., Hutchinson, D.R., and Wood, W.T.  Walkaway VSP's through methane hydrate bearing sediments at the Blake Ridge, ODP Leg 164 - first results.  Fall AGU, San Francisco, 1996, EOS, 77(Supplement), F322.

 

Stephen, R.A.  Time domain finite difference methods for range dependent Biot media.  Conference on High Frequency Acoustics in Shallow Water, SACLANTCEN, June 30 - July 4, 1997.

 

Stephen, R.A.  The Ocean Seismic Network.  WHOI-G&G Department Seminar, April 25, 1997.

 

Stephen, R.A.  Propagation issues in marine seismology and geoacoustics.  ONR Long Range Propagation Workshop, Lake Arrowhead, CA, March 3-4, 1997.

 

Stephen, R.A., Natland, J.H., Butler, R., Becker, K., Chave, A.D., Duennebier, F.K. and Bradley, C.R.  Deep sea drilling at the H2O observatory site.  Proceedings of the International Workshop on Scientific Use of Submarine Cables, Okinawa, Japan, 25-28 February, 1997 (Poster).

 

Pecher, I.A., Holbrook, W.S., Stephen, R.A., Hoskins, H., Lizarralde, D., Hutchinson, D.R., and Wood, W.T.  Offset-vertical seismic profiling for marine gas hydrate exploration - is it a suitable technique?  First results from ODP Leg 164. 19th Offshore Technology Conference, Houston, 5-8 May, 1997.

 

Pecher, I.A., Holbrook, W.S.,  Stephen, R.A., Hoskins, H., Lizarralde, D., Hutchinson, D.R., Wood, W.T., 1997.  Shear waves through methane hydrate-bearing sediments -- Results from a wide-angle experiment during ODP Leg 164. Fall AGU, San Francisco, 1997, EOS, 77(Supplement).

 

Stephen, R.A.  The Ocean Seismic Network Pilot Experiment.  WHOI-G&G Department Seminar, April 24, 1998.

 

Stephen, R.A.  Benchmark models for propagation and scattering in Biot media. Fall ASA, Norfolk, VA, October 1998, J. Acoust. Soc. Am., 104, 1808.

 

Stephen, R.A.  Deep sea borehole seismology and geoacoustics.  Input/Output, Inc.  Stafford, TX November 17, 1998.  (Invited Talk).

 

Stephen, R.A., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N. and Vernon, F.L. .The Ocean Seismic Network Pilot Experiment Deployment Cruise. Spring AGU, Boston, 1998, EOS (Supplement), S225.

 

Stephen, R.A., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N. and Vernon, F.L. .The Ocean Seismic Network Pilot Experiment.  Tenth Annual IRIS Workshop, Santa Cruz, July 8-11, 1998.  (Invited Talk)

 

Stephen, R.A., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N. and Vernon, F.L.  Broadband borehole seismic results from the Ocean Seismic Network Pilot Experiment.  InterRidge Workshop:  Long-Term Monitoring of the Mid-Atlantic Ridge (MOMAR), Lisbon, October 28-31, 1998, 88.

 

Stephen, R.A., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N. and Vernon, F.L.  Broadband Borehole Seismology and Real-time Submarine Observatories, Fall AGU, San Francisco, 1998, EOS (Supplement), F67.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., Peal, K.R., Wooding, F.B., Hildebrand, J.A., Spiess, F.N. and Stephen, R.A.  Performance of the portable broadband ocean-bottom seismograph (BBOBS) during the Ocean Seismic Network Pilot Experiment, January-June, 1998.  Tenth Annual IRIS Workshop, Santa Cruz, July 8-11, 1998.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., Peal, K.R., Stephen, R.A., Hildebrand, J.A. and Spiess, F.N.  Performance of the portable broadband ocean-bottom seismographs (BBOBS) during the Ocean Seismic Network Pilot Experiment.  InterRidge Workshop:  Long-Term Monitoring of the Mid-Atlantic Ridge (MOMAR), Lisbon, October 28-31, 1998, 79.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., Stephen, R.A.,  Peal, K.R., Hildebrand, J.A. and Spiess, F.N.  Relative Performance of the Borehole, Surficially-Buried, and Seafloor Broadband Seismographs on the Ocean Seismic Network Pilot Experiment: Frequency-Domain Results, Fall AGU, San Francisco, 1998, EOS (Supplement), F661.

 

*Greaves, R.J. and Stephen, R.A.  Low-grazing-angle monostatic acoustic reverberation from rough seafloors.  Fall ASA, Norfolk, VA, October 1998, J. Acoust. Soc. Am., 104, 1821.

 

*Greaves, R.J. and Stephen, R.A.  The influence of large-scale seafloor slope and bottom velocity on low-grazing-angle monostatic acoustic reverberation.  Fall ASA, Norfolk, VA, October 1998, J. Acoust. Soc. Am., 104, 1820.

 

Spiess, F.N., Hildebrand, J.A.,   Stephen, R.A.,  Orcutt, J.A., Peal, K.R., Vernon, F.L., Collins, J.A., Jabson, D.M., Austin, G.L., Price, D.V.,  and Jonke, P.  Wireline Reentry and Equipment Recovery in the OSN Pilot Experiment, Fall AGU, San Francisco, 1998, EOS (Supplement), F650.

 

Vernon, F.L., Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N. and Stephen, R.A. .Early results from the Ocean Seismic Network Pilot Experiment, Spring AGU, Boston, 1998, EOS (Supplement), S225.

 

Vernon, F.L., Orcutt, J.A., Peal, K.R., Stephen, R.A., Collins, J.A., Wolfe, C.J., Spiess, F.N. and Hildebrand, J.A.  .Performance of the broadband borehole seismograph system (B3S2) during the Ocean Seismic Network Pilot Experiment, January-June 1998.  Tenth Annual IRIS Workshop, Santa Cruz, July 8-11, 1998.

 

Vernon, F.L., Collins, J.A., Orcutt, J.A., Stephen, R.A., Peal, K.R., Wolfe, C.J.,  Hildebrand, J.A. and Spiess, F.N.  Evaluation of Teleseismic Waveforms and Detection Thresholds From the OSN Pilot Experiment, Fall AGU, San Francisco, 1998, EOS (Supplement), F650.

 

Stephen, R.A.  A review of ocean acoustics in the band 0.001-1.0Hz. Spring ASA, Berlin, Germany, March 1999, J. Acoust. Soc. Am., 105, 1168.

 

Stephen, R.A.,  Ambient noise beneath the seafloor.  SEG Development and Production Forum, Kananaskis, July 16-16, 1999.

 

Stephen, R.A., Borehole seismic observatories in the deep sea:  The LFASE and OSNPE projects,  Fred Spiess Symposium, Scripps Institution of Oceanography, La Jolla, CA,  October 6, 1999 (Invited Talk).

 

Stephen, R.A., Numerical modeling in elastic wave propagation and scattering, MIT Lincoln Laboratory, Boston, MA.  October 21, 1999.  (Invited Talk)

 

Stephen, R.A., Ambient noise below the seafloor.  Society of Exploration Geophysics Annual Meeting,  Houston, Texas.   October 31 to November 4, 1999.  (Invited Talk)

 

Stephen, R.A., Bolmer, S.T.,  Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N., and Vernon, F.L.  The time dependence of ambient noise beneath the deep sea floor.  Fall AGU, San Francisco, 1999.

 

Stephen, R.A.  Seismic experiments on ODP Legs 176 and 179.  Leg 176/179  post-cruise meeting, Salishan Lodge, August 30-31, 1999.

 

Stephen, R.A.  Physical properties measurements on ODP Leg 176.  Leg 176/179  post-cruise meeting, Salishan Lodge, August 30-31, 1999.

 

Collins, J.A., Peal, K.R., Stephen, R.A., Vernon, F.L., Orcutt, J.A., Hildebrand, J.A. and Spiess, F.N.  Lessons from the ocean seismic network pilot experiment. Spring ASA, Berlin, Germany, March 1999, J. Acoust. Soc. Am., 105, 1168.

 

Kappius, R., Stephen, R.A., and Tessman, J.  Multi-component array analysis: A case study.  SEG Development and Production Forum, Kananaskis, July 16-16, 1999.

 

Vernon, F.L., Orcutt, J.A., Laske, G., Spiess, F.N., Collins, J.A., Peal, K.R., Stephen, R.A. and Wolfe, C.J..  Evaluation of teleseismic waveforms and detection thresholds from the OSN pilot experiment.  Spring ASA, Berlin, Germany, March 1999, J. Acoust. Soc. Am., 105, 1169.

 

Stephen, R.A., Bolmer, S.T.,  Collins, J.A., Hildebrand, J.A., Orcutt, J.A., Peal, K.R., Spiess, F.N., and Vernon, F.L.  The time dependence of ambient noise beneath the deep sea floor.  Ocean Studies Board Workshop on Seafloor Observatories:  Challenges and Opportunities, Key Largo, January 9-12, 2000.

 

Stephen, R.A.  The Ocean Seismic Network pilot experiment:  Permanent broadband stations in the deep sea floor, MIT Earth Resources Laboratory, Cambridge, MA, May 5, 2000 (Invited Talk).

 

Stephen, R.A., Bolmer, S.T., Collins, Peal, K.R., J.A., Hildebrand, J.A., Orcutt, J.A., Spiess, F.N., and Vernon, F.L.  The time dependence of ambient noise beneath the deep sea floor.  IRIS Workshop, Samoset, ME, May 7-10, 2000.

 

Stephen, R.A.  The scattering of low-grazing angle pulse-beams from fluid-saturated porous bottoms.  High frequency sediment acoustics workshop,  Villie-Morgon, France, 16-20 July, 2000.

 

Stephen, R.A.  The scattering of low-grazing angle pulse-beams at interfaces between fluid and porous media.  .  Fall ASA, Newport Beach, December 2000, J. Acoust. Soc. Am., 108, 2535.

 

Stephen, R.A.  Gaussian beams and time domain finite difference solutions to interface scattering problems.  Department of Aerospace and Mechanical Engineering, Boston University, Boston MA, November 10, 2000 (Invited Talk).

 

Stephen, R.A.  Geo-acoustic scattering at interfaces between fluid and porous media.  Fall AGU, San Francisco, 2000.

 

Orcutt, J.A., Vernon, F.L., Peal, K.R., Stephen, R.A.,  Collins, J.A., Wolfe, C.J., Spiess, F.N. and Hildebrand, J.A.  Evaluation of teleseismic waveforms and detection thresholds from the OSN Pilot Experiment.  Ocean Studies Board Workshop on Seafloor Observatories:  Challenges and Opportunities, Key Largo, January 9-12, 2000.

 

*Zeldenrust, I. and Stephen, R.A.  Shear wave resonances in sediments on the deep sea floor.  Fall AGU, San Francisco, 2000.

 

Stephen, R.A., Bolmer, S.T.,  Collins, J.A., Peal, K.R.,  Hildebrand, J.A., Orcutt, J.A., Spiess, F.N., and Vernon, F.L.  The time dependence of ambient noise beneath the deep sea floor.  Ocean Hemisphere Project/International Ocean Networks 2001 Symposium, Mount Fuji, Japan, January 22-25, 2001. 

 

Stephen, R.A.  Geoacoustic scattering at interfaces between fluid and porous media.  CNRS meeting on ŅImaging of Complex Media with Acoustic and Elastic WavesÓ, Cargese, France, July 7-14, 2001.

 

Stephen, R.A.  Gaussian beams, the time-domain finite difference method and geo-acoustic scattering from the seafloor.  Progress in electromagnetics research symposium (PIERS), Boston, July 2002 (Invited Talk), 729.

 

Stephen, R.A., Smith, D.K., and Williams, C.M.  The dynamics of abyssal T-phases. Fall ASA, Cancun, Mexico.  2002.

 

Stephen, R.A., Smith, D.K., and Williams, C.M.  The dynamics of abyssal T-phases. Spring AGU, Washington, D.C., 2002.

 

Collins, J.A., Vernon, F.L., Orcutt, J.A., and Stephen, R.A.  Upper mantle structure beneath the Hawaiian Swell:  Constraints from the ocean seismic network pilot experiment. Spring AGU, Washington, D.C., 2002. (Withdrawn)

 

Kasahara, J., Nakamura, M., Sun, Y.-F., Haraguchi, S., Stephen, R.A. and Leg 200 Shipboard Scientific Party.  Corrrelation of physical properties, logging and lithology obtained by drilling at the 45Ma Pacific plate:  ODP-Leg 200 H2O Site.  Fall AGU, San Francisco, 2002.

 

Sutherland, F.H., Vernon, F.L., Orcutt, J.A., Collins, J.A., and Stephen, R.A.  Results from OSNPE:  Low threshold magnitudes for ocean bottom recording.  IRIS Workshop, Waikaloa Beach, Hawaii, 2002.

 

Williams, C., Stephen, R.A. and Smith, D.  Are T-phases blocked by bathymetry?  A study of seismic events located at the Kane and Atlantis transform faults. Fall AGU, San Francisco, 2002.  (Withdrawn)

 

Stephen, R.A.  Third party borehole seismic experiments during the ocean drilling program.  IUGG, Sapporo, Japan, 2003

 

Stephen, R.A., Duennebier, F.K., Harris, D., Jolly, J., Bolmer, S.T., Bromirski,P., and the ODP Leg 200 Scientific Party.  Broadband seismic observations at the Hawaii-2 Observatory during ODP Leg 200:  Part 1 - Overview, drilling noise and sediment resonances.  IUGG, Sapporo, Japan, 2003.

 

Stephen, R.A., Kasahara, J., Acton, G.D. and the ODP Leg 200 Scientific Party.  Ocean crustal drilling at the Hawaii-2 Observatory.  Scientific Submarine Cable Workshop, University of Tokyo, June 25-27, 2003.

 

Stephen, R.A., Duennebier, F.K., Harris, D., Jolly, J., Bolmer, S., Bromirski, P.D. and the ODP Leg 200 Scientific Party. Broadband Seismic Observations at the Hawaii-2 Observatory During ODP Leg 200.  Fall AGU, San Francisco, 2003. 

 

Bolmer, S.T., Hoskins, H., Stephen, R.A. and the ODP Leg 200 Scientific Party.  3.5kHz Profiling with Vertically Separated Source and Receiver.  Fall AGU, San Francisco, 2003. 

 

Chave, A.D., Bailey, J.W., Beaulieu, S., Butler, R., Duennebier, F.K., Filloux, J.H., Harris, D., Mandea, M., Orcutt, J.A., Smith, K., Stephen, R., Tarits, P., and  Vernon, F.L.  2003 and 2004 Upgrades and Additions to the Hawaii-2 Observatory.  Scientific Submarine Cable Workshop, University of Tokyo, June 25-27, 2003 and IUGG, Sapporo, Japan, 2003.

 

Duennebier, F.K., Bromirski, P.D., Stephen, R.A., Harris, D., Jolly, J. and the ODP Leg 200 Scientific Party.  The Origin and Propagation of Microseisms: ODP Leg 200 at the Hawaii-2 Observatory.  Fall AGU, San Francisco, 2003. 

 

Swift, S.A., Stephen, R.A., Hoskins, H., and Bolmer, S.T. Third party borehole seismic experiments during the Ocean Drilling Program.   Fall AGU, San Francisco, 2003.

 

Williams, C., Stephen, R.A. and Smith, D.  Are T-phases blocked by bathymetry?  A study of seismic events located at the Kane and Atlantis transform faults. Spring AGU, Nice, France, 2003. 

 

Stephen, R.A.  Numerical modeling of bottom scattering.  Ocean Acoustics Conference, La Jolla CA, March 1-5, 2004.

 


Stephen, R.A., Smith, D.K., and Williams, C.M.  The dynamics of abyssal T-phases. Workshop on Seismo-acoustic Applications in Marine Geology and Geophysics, WHOI, Woods Hole, March 24-26, 2004

 

Stephen, R.A., Smith, D.K., and Williams, C.M.  Time-domain finite-difference modeling of abyssal T-phases. 16th Annual IRIS Workshop, Westward Look, Arizona, 2004.

 

Stephen, R.A., Smith, D.K., and Williams, C.M.  Time domain finite difference modeling of abyssal T-phases.  Fall AGU, San Francisco, 2004.

 

Araki, E., Stephen,  R.A., Shinohara,  M., Kanazawa, T. and Suyehiro, K.  T-phase observed at deep seafloor boreholes, Workshop on Seismo-acoustic Applications in Marine Geology and Geophysics, WHOI, Woods Hole, March 24-26, 2004

 

Araki, E., Stephen,  R.A., Shinohara,  M., Kanazawa, T. and Suyehiro, K.  T-phase observed at deep seafloor boreholes,  Fall AGU, San Francisco, 2004.

 

Bromirski, P.D.,  Duennebier, F.K., and Stephen,,R.A. Mid-ocean microseisms: coastal source areas and historical wave climate implications. Fall AGU, San Francisco, 2004.

 

ION Steering Committee and Other Participants, Global siting plan for geophysical observatories in the International Ocean Network, Ocean Research Interactive Observatory Networks (ORION) Workshop, San Juan, Puerto Rico, 4-8 January, 2004.

 

Williams, C.M., Stephen, R.A. and Smith, D.K.  Hydroacoustic events located near the Atlantis (30¼N) and Kane (23¼30ÕN) Transform Faults on the MAR.  Spring ASA, New York, NY, 2004.

 

Williams, C.M., Stephen, R.A. and Smith, D.K. Hydroacoustic events located near the Atlantis (30¼N) and Kane (23¼30ÕN) transform faults on the MAR. Workshop on Seismo-acoustic Applications in Marine Geology and Geophysics, WHOI, Woods Hole, March 24-26, 2004.

 

Stephen, R.A.  Time-domain finite-difference modeling of seafloor compliance.  IPG Paris, France. January 31, 2005.

 

Stephen, R.A.  Marine seismology, tsunamis and ocean observatories.  Weston Observatory, Boston College.  March 23 and 30, 2005.  (Invited)

 

Stephen, R.A. Waves and tsunamis.  Massachusetts Marine Educators 2005 Conference:  Access to the Sea,   WHOI, April 30, 2005.  (Invited)

 

Stephen, R.A.  Abyssal T-Phases.  NRCanada/CTBTO Hydroacoustics Workshop, Victoria, Canada, May 2,  2005.

 

Stephen, R.A.  The role of vertical seismic profiles in core, log, seismic integration.  CLSI Workshop, Tokyo, October 3-4, 2006.

 

Stephen, R.A.  Head waves, diving waves and interface waves at the seafloor.  Fall ASA, Minneapolis,  Minn.,  October 2005,  J. Acoust. Soc. Am., 118, 1968  (Invited).

 

Stephen, R.A., Smith, D.K., and Williams, C.M.  Time domain finite difference modeling of abyssal T-phases. Workshop on Seismic Waves in Laterally Inhomogeneous Media, Hruba Skala, Czeck Republic, June 20-24, 2005.

 

Araki, E., Stephen,  R.A., Shinohara,  M., Kanazawa, T. and Suyehiro, K.  T-phase observed at deep seafloor boreholes.  IRIS/UNAVCO Annual Meeting, Skamania Washington, June 8-11, 2005.

 

Araki, E., Shinohara,  M., Kanazawa, T., Suyehiro, K. and Stephen,  R.A.,  T-phase dynamics in the Western Pacific.  International Conference on Underwater Acoustics Measurements, Heraklion, Greece, June 28-July 1, 2005.  (Invited)

 

Lavin, M., Strohschneider, D., Maichle, R., Frashure, K., Micozzi, N., and Stephen, R.A.  The waves and tsunamis project. [ED53A-0323] Fall AGU, San Francisco, 2005.

 

Micozzi, N., Frashure, K., Stephen, R., Maichle, R., Strohschneider, D., and Lavin, M.  Understanding waves and plankton net challenge. NE-COSEE OSEI-II Wrap-up Session, Woods Hole, Mass., April 29, 2005.

 

Stephen, R.A.  The seismology of storms.  Weston Observatory, Boston College.  March 8 and 22, 2006.  (Invited)

 

Stephen, R.A., Mercer, J., Andrew, R. and Colosi, J.  Seafloor hydrophone and vertical geophone observations during the NPAL/LOAPEX/SPICE experiments.  Ninth NPAL Workshop, Borrego Springs, CA, April 18-20, 2006.

 

Stephen, R.A., Swift, S.A., Bolmer, S.T. and Hoskins, H.  Third party borehole seismic experiments during the Ocean Drilling Program.  Fault Zone Drilling Workshop, Miyazaki, Japan,  May 23-26, 2006.

 

Stephen, R.A., Crawford, W.C. and Iassonov, P.,  Time domain finite difference modeling of seafloor compliance.  Fall AGU, San Francisco, 2006.

 

Stephen, R.A., Mercer, J., Andrew, R. and Colosi, J.  Seafloor hydrophone and vertical geophone observations during the North Pacific Acoustic Laboratory/ Long-range ocean Acoustic Propagation Experiment (NPAL/LOAPEX).  Fall ASA, Honolulu, Hawaii.  November 2006,  J. Acoust. Soc. Am., 120, 3021.

 

Bromirski, P.D., Stephen, R.A. and Duennebier, F.K.  The effects of local structure on seafloor ambient noise at the Hawaii-2 Observatory. Fall AGU, San Francisco, 2006.

 

Lavin, M., Strohschneider, D., Maichle, R., Frashure, K., Micozzi, N., and Stephen, R.A.  The waves and tsunamis project. Workshop on Interactions between Tsunamis and Underwater Geological Processes, Woods Hole, October 30-31, 2006.

 

Stephen, R.A.  Chris Chapman and marine seismology.  Scientific meeting in honor of C.H. Chapman, Cambridge, U.K., May 3-4, 2007.

 

Stephen, R.A., Mercer, J., Andrew, R. and Colosi, J.  Seafloor hydrophone and vertical geophone observations during NPAL/LOAPEX.  10th NPAL Workshop, Sleeping Lady, Leavenworth, Washington, May 15-17, 2007.

 

Stephen, R.A.  Borehole seismic measurements.  Gas Hydrate Observatories Workshop (GHOBS), Portland, OR, July 18-20, 2007. (Invited)

 

Stephen, R.A.  Bottom interaction in long-range ocean acoustic propagation.  Geophysics Seminar, WHOI September 5, 2007.

 

Stephen, R.A.  Borehole seismic measurements.  Workshop on Seismogenic Zone Observatory/ Ocean Borehole Observatory Science - Current goals and challenges for next 10 years.  JAMSTEC, Tokyo, Japan. November 27-28, 2007.  (Invited)

 

Stephen, R.A.  What OBSs tell you about long-range ocean acoustic propagation.  Geophysics Seminar, WHOI September 24, 2008.

 

Stephen, R.A., Mercer, J., Andrew, R. Howe, B., Dzieciuch, M., Worcester, P., and Colosi, J. Bottom interaction in long-range ocean acoustic propagation. Fall AGU, San Francisco,  Dec. 10, 2007.

 

Stephen, R.A., Dzieciuch, M.A., Andrew, R.K., Colosi, J.A., Howe, B.M., Mercer, J.A., and Worcester, P.F.  Deep shadow zone arrivals on ocean bottom seismometers in long-range ocean acoustic propagation.  11th NPAL Workshop, Borrego Springs, CA, April 15-17, 2008.

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals:  A new class of arrivals in long-range ocean acoustic propagation. ONR, Arlington, VA, October 15, 2008.

 

Stephen, R.A., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Howe, B.M., Mercer, J.A. and Colosi, J.A.  Deep shadow zone arrivals on the ocean bottom.  Fall ASA, Miami FL, November 14, 2008.

 

Nag, S., Swift, S.A. and Stephen, R.A.  Using IODP Expedition 312 vertical seismic profile to investigate sub-basement reflections in multi-channel profiles.  AGU Joint Assembly, Fort Lauderdale, FL, 27-20 May, 2008.

 

Swift, S., Stephen, R.A., Reichow, M., Tikka, A., Tominaga, M. and Gilbert, L.A.  Velocity Structure of Upper Ocean Crust at ODP Site 1256. Fall AGU, San Francisco,  Dec. 15-19, 2008.

 

Stephen, R.A. and Bromirski, P.D.  Coherence and phase relationships of broadband ambient noise in the Pacific Ocean.  Fall AGU, San Francisco,  Dec. 15-19, 2008.

 

Stephen, R.A. and Bromirski, P.D.  Coherence and phase relationships of broadband ambient noise in the Pacific Ocean.   IASPEI General Assembly, Cape Town, South Africa, January 11-16, 2009.

 

Stephen, R.A., Petitt, R.A. and Pettigrew, T.  Seismometers on CORKs (SeisCORKs).   IASPEI General Assembly, Cape Town, South Africa, January 11-16, 2009.

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Buck, L.J., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals – an unexplained set of arrivals in long-range ocean acoustic propagation. CTBTO - International Scientific Studies Conference, Vienna, Austria, June 10-12, 2009.

 

Stephen, R.A.  Long-range ocean acoustic propagation, T-phases, earthquakes and hydro-acoustic networks. CTBTO - International Scientific Studies Conference, Vienna, Austria, June 10-12, 2009.  (Invited, Key Lecture)  ( video available at:  http://msg.whoi.edu/CTBTO_Key_Lecture_RAS_files/RalphStephen_presentation_2.html)

 

Stephen, R.A.  Deep seafloor arrivals – a new set of arrivals in long-range ocean acoustic propagation.  AOPE Seminar, WHOI, July 22, 2009 (Invited Talk).

 

Stephen, R.A., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals:  an unexplained set of arrivals in long-range ocean acoustic propagation. 12th NPAL Workshop, Carmel, CA, August 31 - September 2, 2009.

 

Stephen, R.A., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals:  Scattering or multi-path from ocean thermal structure?  Fall ASA, San Antonio, TX, October 26, 2009.

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Buck, L., Mercer, J.A., Colosi, J.A., and Howe, B.M.  A new set of arrivals in long-range ocean acoustic propagation.  Fall AGU, San Francisco, December 14-18, 2009.

 

Stephen, R.A.  Deep seafloor arrivals:  A new class of arrivals in long-range ocean acoustic propagation..  NATO Undersea Research Centre, November 20, 2009 (Invited Talk).

 

*Xu, M., Stephen, R.A., Canales, J., Carbotte, S.M., Nedimovic, M.R., and Mutter, J.C.  Seismic waveform modeling of the reflection response from a mid-ocean ridge axial melt sill:  Understanding the message behind the polarity of waves reflected off the melt lens.  Fall AGU, San Francisco, December 14-18, 2009.

 

Stephen, R.A.  Earthquake T-phases and long-range ocean acoustic propagation.  NERIES-ESONET OBS - Marine Seismology Workshop, IPGP - Paris, February 11-12, 2010 (Invited Talk).

 

Stephen, R.A.  Deep water ambient noise on the seafloor.  Spring ASA, Baltimore, April 19, 2010 (Invited Talk).

 

Stephen, R.A.  Earthquake T-phases and long-range ocean acoustic propagation.  Workshop on Seismic Waves in Laterally Inhomogeneous Media VII, Tepla, Czech Republic, June 21-25, 2010.

 

Stephen, R.A., Petitt, R., and Pettigrew, T.  Borehole seismic observatories for monitoring crustal processes.  European Geophysical Union General Assembly, Vienna, May 3, 2010 (Invited Talk).

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Buck, L., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals:  an unexplained set of arrivals in long-range ocean acoustic propagation.  Workshop on Experiments with Portable Ocean Bottom Seismographs (EPOBS), Snowbird, Utah, September 26-28, 2010. 

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Bathymetric scattering and seafloor interface waves in long-range ocean acoustic propagation. 13th NPAL Workshop, Airlie Center, VA, October 10-13, 2010.

 

Stephen, R.A. and Worcester, P.F.  Ocean bottom seismometer augmentation of the NPAL 2010-2011 Philippine Sea Experiment. 13th NPAL Workshop, Airlie Center, VA, October 10-13, 2010.

 

Stephen, R.A., Heaney, K., Murray, J. and Campbell, R.  Marine geology of the Philippine Sea. 13th NPAL Workshop, Airlie Center, VA, October 10-13, 2010.

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Deep seafloor arrivals:  a new class of arrivals in long-range ocean acoustic propagation.  Invited Speaker Series, Applied Ocean Sciences, Scripps Institution of Oceanography, La Jolla, CA, 28 October, 2010 (Invited Talk).

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, R.K., Buck, L.J., Mercer, J.A., Colosi, J.A., and Howe, B.M.  Bathymetric scattering and seafloor interface waves in long-range ocean acoustic propagation.  Fall ASA, Cancun, Mexico, November 17, 2010.

 

Bromirski, P., Stephen, R., Sergienko, O., and MacAyeal, D.  Ocean-ice shelf interaction:  Gravity wave induced signals.  Autonomous Polar Observing Systems Workshop, Potomac, MD, Sept. 30 - Oct. 1, 2010.

 

Stephen, R.A.  Adam Dziewonski and marine seismology.  Adam M. Dziewonski Symposium, Harvard University, Cambridge, MA, June 4, 2011.

 

Stephen, R.A., Worcester, P.F. and Dzieciuch, M.A.  The depth dependence of earthquake T-phases at an ocean acoustic observatory.  IUGG, Melbourne, Australia, June 28 - July 8, 2011.

 

Stephen, R.A., Marine seismology. G&G Pay-day Talk, 16 September, 2011.

 

Stephen, R.A., Kemp, J., Bolmer, S.T., Worcester, P.F., Dzieciuch, M.A., Carey, S., Aaron, E., Moskovitz, B., Calderwood, J., Cohen, B., McPeak, S.P., and Campbell, R. Ocean Bottom Seismometer Augmentation of the Philippine Sea Experiment - OBSAPS. 14th NPAL Workshop, Pala Mesa, CA., October 18-20, 2011.

 

Stephen, R.A., Bolmer, S.T., Worcester, P.F., Dzieciuch, M.A., Mercer, J.A. and Howe, B.M.  The depth dependence of earthquake T-phases at an Ocean Acoustic Observatory.  Fall ASA, San Diego, CA, November 2, 2011.

 

Stephen, R.A., Bolmer, S.T., Worcester, P.F., Dzieciuch, M.A., Mercer, J.A. and Howe, B.M.  The depth dependence of earthquake T-phases at an Ocean Acoustic Observatory.  Fall AGU, San Francisco, CA, December 6, 2011.

 

Bromirski, P.D. and Stephen, R.A.  Comparison of wave-induced signals at the Ross Ice Shelf with tabular iceberg B15A and other land-based Antarctic seismic stations. International Symposium on Interactions of Ice Sheets and Glaciers with the Ocean, 5-10 June, 2011. La Jolla, California, USA.

 

Freeman, S.E., D'Spain, G.L., Stephen, R., Heaney, K.D., Baggeroer, A.,  Worcester, P., Mercer, J., Lynch, S.,  and Murray, J.  Time-evolving T-phase arrival structure using simultaneous recordings by large-aperture horizontal and vertical line arrays in PhilSea09.   Fall ASA, San Diego, CA, November 2, 2011.

 

Udovydchenkov, I. A., Stephen, R. A., Duda, T. F., Worcester, P. F., Dzieciuch, M. A., Mercer, J. A., Andrew, R.K., and Howe, B. M., Bottom reflections from rough topography in the Long-range Ocean Acoustic Propagation Experiment (LOAPEX). 14th NPAL Workshop, Pala Mesa, CA., October 18-20, 2011.

 

Udovydchenkov, I. A., Stephen, R. A., Duda, T. F., Worcester, P. F., Dzieciuch, M. A., Mercer, J. A., Andrew, R.K., and Howe, B. M.,  Bottom reflections from rough topography in the Long-range Ocean Acoustic Propagation Experiment (LOAPEX). Fall ASA, San Diego, CA, November 2, 2011.

 

Stephen, R.A., Seismo-acoustic techniques for estimating ocean bottom properties.  Workshop on subsea technologies & seafloor properties characterization, Society of Exploration Geophysicists Annual Meeting, Las Vegas, November 8, 2012.  (INVITED)

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, P.F., Mercer, J.A., Colosi, J.A. and Howe, B.M., Deep seafloor arrivals in long range ocean acoustic propagation. Fall ASA, Kansas City, October 22-26, 2012.

 

Stephen, R.A., Seismo-acoustic techniques for estimating ocean bottom properties.  Workshop on subsea technologies & seafloor properties characterization, Society of Exploration Geophysicists Annual Meeting, Las Vegas, November 8, 2012.  (INVITED)

 

Stephen, R.A., Kemp, J., Bolmer, S.T., Worcester, P.F., Dzieciuch, M.A., Carey, S., Aaron, E., Moskovitz, B., McPeak, S.P., and Campbell, R., Ocean Bottom Seismometer Augmentation of the Philippine Sea Experiment - OBSAPS. Spring ASA, Hong Kong, May 13-18, 2012.

 

Stephen, R.A., Bolmer, S.T., Dzieciuch, M.A., Worcester, P.F., Andrew, P.F., Mercer, J.A., Colosi, J.A. and Howe, B.M., Deep seafloor arrivals in long range ocean acoustic propagation. Fall ASA, Kansas City, October 22-26, 2012.

 

Stephen, R.A., Udovydchenkov, I.A., Bolmer, S.T., Duda, T.F., Lin, Y.T., and Peter, D.,  Three dimensional numerical modeling in marine seismology.  EarthCube End-User Workshop, Arizona State University, Tempe, Arizona, October 29-30, 2012.

 

Heaney, K.D., Campbell, R.L., Baggeroer, A.B., Stephen, R.A., Scheer, E., Worcester, P.F., and Dzieciuch, M.A.,  Towed array measurements and modeling in the Philippine Sea. Spring ASA, Hong Kong, May 13-18, 2012.

 

Udovydchenkov, I.A., Stephen, R.A., Duda, T.F., Lin, Y.-T., and Peter, D., Three-dimensional numerical modeling of sound propagation and scattering in the deep ocean with elastic (shear) bottoms. Fall ASA, Kansas City, October 22-26, 2012.

 

Worcester, P.F., Andrew, R.K., Baggeroer, A.B., Colosi, J.A., DÕSpain, G.L., Dzieciuch, M.A., Heaney, K.D., Bruce M. Howe, B.M., Kemp, J.N., Mercer, J.A., Stephen, R.A. and Van Uffelen, L.J.,  The North Pacific Acoustic Laboratory (NPAL) deep-water acoustic propagation experiments in the Philippine Sea. Spring ASA, Hong Kong, May 13-18, 2012.

 

Stephen, R.A., Bromirski, P.D., Gerstoft, P. and Worcester, P.F.  Microseism noise in the Phillipine Sea.  IRIS OBSIP Workshop, Redondo Beach, CA, October 21-22, 2013.

 

Stephen, R.A., Bromirski, P.D., Gerstoft, P. and Worcester, P.F.  Microseism noise in the Phillipine Sea.  Fall AGU, San Francisco, December 9-13, 2013.

 

Stephen, R.A., Bolmer, S.T., Worcester, P.F.  and Dzieciuch, M.A. Bottom interacting acoustics in the Phillipine Sea.  ONR Peer Review,  Stennis Space Center. MS, 22-23 April, 2014.

 

Stephen, R.A. and Worcester, P.F.  Ocean Bottom Seismometer Augmentation in the North Pacific (OBSANP).  ONR Meeting, Arlington, VA, January 10, 2014.

 

Stephen, R.A.  Seismometers for bottom and ice interacting ocean acoustics.  International workshop on Arctic ocean tomography, Arlington, VA, January 14-16, 2014.

 

Stephen, R.A., Worcester, P.F. , Udovydchenkov, I.A. and Dzieciuch, M.A. Bottom interacting acoustics in the North Pacific.  Spring ASA, Providence, RI, May 9, 2014.

 

Stephen, R.A.  Using ocean bottom seismometers to study long-range ocean acoustics.  Geochemistry and Geophysics Seminar, WHOI, August 5, 2014.

 

Stephen, R.A.,  Worcester, P.F., Udovydchenkov, I.A., and Dzieciuch, M.A.  Bottom interacting acoustics in the Philippine Sea.  Philippine Sea Data Analysis Workshop, Borrego Springs, CA, 15-17 October, 2014.

 

Stephen, R.A.,  Worcester, P.F., Bromirski, P.D. and Dzieciuch, M.A.  Microseisms and ambient noise in the Philippine Sea.  Philippine Sea Data Analysis Workshop, Borrego Springs, CA, 15-17 October, 2014.

 

Stephen, R.A. and Bromirski, P.D.  Measurement of Wave-induced Signals on the Ross Ice Shelf - Part 2.  McMurdo Science Lectures, Summer 2014-2015, McMurdo, Antarctica, November 7, 2014.

 

Bromirski, P.D., Stephen, R.A., Gerstoft, P. and Sergienko, O.  Measuring wave-induced vibrations on the Ross Ice Shelf.  Twenty-first Annual WAIS Workshop, Camp Cedar Glen, Julian, CA, September 24-27, 2014

 

Bromirski, P.D. and Stephen, R.A.  Measurement of Wave-induced Signals on the Ross Ice Shelf - Part 1.  McMurdo Science Lectures, Summer 2014-2015, McMurdo, Antarctica, November 7, 2014.

 

Udovydchenkov, I.A., Stephen, R.A., Komatitsch, D., Xie, Z. and Tromp, J. Three-dimensional numerical modeling of sound propagation and scattering in the deep ocean with elastic bottoms. AGU Ocean Sciences Meeting, Honolulu, HI, February 23-28, 2014.

 

Stephen, R.A., Worcester, P.F., Campbell, R.L., Udovydchenkov, I.A. and Dzieciuch, M.A.  Bottom-diffracted surface-reflected arrivals in the Philippine Sea. Spring ASA, Pittsburgh, PA,  18-22 May, 2015.  (INVITED)

 

Stephen, R.A., Bolmer, S.T., Bromirski, P.D., Gerstoft, P.,Aster, R.C., Wiens, D.A., and Nyblade, A.  Wave induced vibrations on the Ross Ice Shelf.  New England Glaciology Meeting, Woods Hole, MA.  16-17 April, 2015.

 

Stephen, R.A., Elgar, S., Straneo, F., Bromirski, P.D., Gerstoft, P. and Aster, R.C.  Ocean/seismic interaction with the Ross Ice Shelf (OSIRIS).  IAES Workshop, Loveland, CO, September 20-22, 2015.

 

Stephen, R.A., Udovydchenkov, I.A., Bolmer, S.T., Komatitsch, D., Tromp, J., Casarotti, E., Xie, Z., and Worcester, P.F.  Three dimensional numerical modeling of bottom-diffracted surface-reflected arrivals in the North Pacific.  Fall AGU, San Francisco, December 14-18, 2015.

 

Aster, R., Bromirski, P., Gerstoft, P., Nyblade, A., Stephen, R., and Wiens, D.  Ice shelf seismology:  Recent broadband seismological observations and future prospects.  WAIS Workshop, Loveland, CO, September 16-19, 2015.

 

Aster, R., Bromirski, P., Gerstoft, P., Nyblade, A., Stephen, R., and Wiens, D.  Ice shelf seismology:  Recent broadband seismological observations and future prospects.  XII International Symposium on Antarctic Earth Science, Goa, India, 13-17 July, 2015.

 

Baker, Aster, Anthony, Wiens, Nyblade, Bromirski, Stephen and Gerstoft.    Teleseismic earthquake signals observed on an ice shelf.  Fall AGU, San Francisco, December 14-18, 2015.

 

Bromirski, P., Diez, A., Gerstoft, P., Stephen, R., Aster, R., Wiens, D. and Nyblade, A.,  Ross Ice Shelf vibrations and structure.  WAIS Workshop, Loveland, CO, September 16-19, 2015.

 

Bromirski, P., Diez, A., Gerstoft, P., Stephen, R., Wiens, D., Aster, R. and Nyblade, A.,  Ocean wave vibrations: Ross Ice Shelf, Antarctica.  Scripps Science Showcase, July 28, 2015.

 

Clark, H., Stephen, R.A.,  Bolmer, S.T., Potty, G.R. and Miller, J.H.  Wave propagation in muddy sediments using time domain finite difference approach.  Spring ASA, Pittsburgh, PA,  18-22 May, 2015.

 

Diez, A., Bromirski, P.D., Gerstoft, P., Stephen, R., Wiens, D., Aster, R., and Nyblade, A.  Seismometer array at Ross Ice Shelf:  Understanding ice shelf response to gravity wave excitation.  EGU, Vienna, Austria, 27 April - 02 May, 2015.

 

Diez, A., Gerstoft, P., Stephen, R.A., Wiens, D.A., Aster, R., Nyblade, A., Bromirski, P.D., Anthony, R., and Chen, C.  Ice shelf structure from dispersion curve analysis of short-period seismic surface waves, Ross Ice Shelf, Antarctica.  Fall AGU, San Francisco, December 14-18, 2015.

 

Diez, A., Bromirski, P., Gerstoft, P., Stephen, R., Bolmer, T., R., Aster, R., Nyblade, A., and Wiens, D.  Layer structure of the Ross Ice Shelf derived from surface waves of ambient noise.  Alfred Wegner Institute, September 3, 2015.

 

Wiens, D.A., Pratt, M., Aster,  R., Nyblade, A., Bromirski, P., Stephen,  R., Gerstoft, P., Diez,  A., Cai, C., Anthony, R., and Shore, P.  Seismic excitation of the Ross Ice Shelf by Whillans Ice Stream slip events.  Fall AGU, San Francisco, December 14-18, 2015.

 

 

* - Graduate Student, Summer Student Fellow, or Student Employee under my supervision