Chirp Profiles

The field SEG-Y data files may be processed and plotted using seismic processing software such as Seismic Unix. Seismic Unix is Unix/Linux public domain software provided by the Colorado School of Mines and is currently located at http://www.cwp.mines.edu/cwpcodes/index.html. Linux tar files (boom.tar and chirp.tar) containing examples of Seismic Unix scripts are provided in the SU subfolder of the SOFTWARE folder located at the top level of this DVD.

The profiles presented here were produced using Seismic Unix software. Chirp data was only gained. The processed Postscript images were then converted to GIF format using ImageMagick freeware.

NOTE: This data was not adjusted to compensate for the tow depth of the chirp fish. Only depth below seafloor is accurate. The depth of the seafloor is only relative to the depth of the towed fish.

To view a profile, click on the desired thumbnail, and a full-size version will appear.

LINE: 01c001 24242 traces:
Start of line: 01c001 SHOT=1 day=118 hour=14 minute=38 sec=28
End of line: 01c001 SHOT=24242 day=118 hour=16 minute=18 sec=8

LINE: 01c002 37961 traces:
Start of line: 01c002 SHOT=1 day=118 hour=16 minute=39 sec=41
End of line: 01c002 SHOT=37961 day=118 hour=19 minute=15 sec=41

LINE: 01c003 22029 traces:
Start of line: 01c003 SHOT=1 day=118 hour=19 minute=52 sec=39
End of line: 01c003 SHOT=22029 day=118 hour=21 minute=23 sec=15

LINE: 01c004 20738 traces:
Start of line: 01c004 SHOT=1 day=120 hour=16 minute=59 sec=43
End of line: 01c004 SHOT=20738 day=120 hour=18 minute=25 sec=13

LINE: 01c005 12453 traces:
Start of line: 01c005 SHOT=1 day=120 hour=18 minute=25 sec=15
End of line: 01c005 SHOT=12453 day=120 hour=19 minute=16 sec=25

LINE: 01c006 20028 traces:
Start of line: 01c006 SHOT=1 day=120 hour=19 minute=16 sec=26
End of line: 01c006 SHOT=20028 day=153 hour=20 minute=38 sec=51

LINE: 01c007 32379 traces:
Start of line: 01c007 SHOT=1 day=122 hour=17 minute=8 sec=33
End of line: 01c007 SHOT=32379 day=122 hour=19 minute=21 sec=41

LINE: 01c008 10462 traces:
Start of line: 01c008 SHOT=1 day=122 hour=19 minute=21 sec=42
End of line: 01c008 SHOT=10462 day=122 hour=20 minute=4 sec=41

LINE: 01c009 9725 traces:
Start of line: 01c009 SHOT=1 day=122 hour=21 minute=0 sec=10
End of line: 01c009 SHOT=9725 day=122 hour=21 minute=40 sec=9

LINE: 01c010 36192 traces:
Start of line: 01c010 SHOT=1 day=123 hour=16 minute=26 sec=15
End of line: 01c010 SHOT=36192 day=123 hour=17 minute=42 sec=27

LINE: 01c011a 40000 traces:
Start of line: 01c011a SHOT=1 day=123 hour=18 minute=23 sec=57
End of line: 01c011a SHOT=40000 day=123 hour=19 minute=48 sec=9

LINE: 01c011b 36690 traces:
Start of line: 01c011b SHOT=1 day=123 hour=19 minute=48 sec=9
End of line: 01c011b SHOT=36690 day=123 hour=21 minute=5 sec=29