Minutes
International Ocean
Networks (ION)
Breakfast Meeting
December 12, 2007 (AGU)
San Francisco
Attendees:
Ralph Stephen
(Chair)
Keir Becker
Peter Bromirski
Rhett Butler
Adam Dziewonski
Fred Duennebier
Jean Paul Montagner
Garry Rogers
Barbara Romanowicz
Adam Schultz
ION
is co-sponsoring with IASPEI a Special Session on ÒUnderwater ObservatoriesÓ
(JSS016) at the 2007 IUGG meeting in Perugia (July
2-13, 2007). The deadline for abstract submissions to the meeting was
extended from January 15 to February 28.
One abstract has been submitted so far. Adam and Barbara agreed to be
the ION points-of-contact for this session.
Progress reports were presented by the various attendees as
follows:
Ralph
Stephen
– Ralph became the ION Chair officially in July 2007 through an email
process. This was his first
meeting as Chair. We were working
on getting the ION web site organized and in resolving confusion in the links
with Berkeley and Oregon.
-
ION
had co-sponsored with IASPEI a Special Session on ÒUnderwater ObservatoriesÓ
(JSS016) at the 2007 IUGG meeting in Perugia (July
2-13, 2007). This was a
great success. ION was also
co-sponsoring two proposed sessions at the 2009 IASPEI meeting in Cape Town
(January 10-16, 2009): ÒExtending
land networks into the sea and oceansÓ and ÒRe-using ODP boreholes and
submarine cablesÓ.
-
ION
had also co-sponsored a workshop in Tokyo on borehole observatories for NanTroSEIZE (November 28-29, 2007).
-
The
April/June 2006 Issue of Annals of Geophysics, a Special Issue dedicated to
Giuseppe Smriglio, entitled ÒFrom Land Networks to Seafloor
ObservatoriesÓ contained many interesting papers by ION members and others on
international seafloor observatory programs.
-
the ION proposal to IODP-MI (631-Pre) is
still active.
A proposal has been submitted to US-NSF
for a workshop to discuss joint science goals between NSF Earth and Ocean
Science divisions.
Keir Becker – IODP-MI faces reduced drilling time on both
platforms, the JOIDES Resolution and the Chikyu. Funding constraints are also making it
tough for observatory efforts at the Juan de Fuca CORKs
and on NanTroSEIZE. Microbiology observatories are being planned for the
mid-Atlantic Ridge (395A and a new hole) and in the Mariana forearc.
Fred Duennebier
– The relaying of the (Hawaii-4) seafloor communications cable to station
ALOHA (about 60km long) was a success. There is 96KHz telemetry on two channels. A hydrophone has been installed with a
bandwidth down to 100Hz. It would
be good if someone would champion the installation of a broadband seismometer
at Aloha.
Adam Dziewonski – Expressed his disappointment that US seafloor observatory
efforts were not proceeding more quickly.
Barbara Romanowicz
– The MOBB has been installed for a five year
deployment. It will be hooked-up
to the MARS cable in Spring Õ08. There is a back-up battery operated
system to acquire data when the cable is not attached or is not working.
Jean Paul Montagner - Planning for an observatory at
NERO (the Ninety-East Ridge in the Indian Ocean) have been postponed
indefinitely. The ANTARES project
is working well with two seismometers.
Roland Person is active in the ESONET program.
Rhett Butler – A policy has been established
for OBSIP to release the data from at least one OBS immediately after recovery
to the IRIS DMS for all of their experiments.
Garry Rogers - Although Garry was not yet a
member of ION he was invited to the meeting to give an up-date on progress with
Neptune Canada. This is summarized
in the attachment below.