Figure 5: Raw (a) and filtered (b) data from the vertical channel at receiver depth 230m for the 4km airgun circle shot during ODP Leg 102. High frequency noise seen in the raw data (a) is most likely due to pipe banging in the borehole, the drill ship maneuvering during recording intervals, and/or debris falling down the borehole. Bandpass filtered data (b) have been processed using a Butterworth filter at 2 and 20Hz. [Dougherty et al., 1995]

Retun to the 2003 Fall AGU Poster

THIRD PARTY BOREHOLE SEISMIC EXPERIMENTS DURING THE OCEAN DRILLING PROGRAM

Created on December 10, 2003 by Tom Bolmer