Data Recovery
NSRF and SE100 data were parsed from archive tape using start/end times noted in cruise
report (see appendix). New FFID header words were assigned to traces.
Headers for day, hour, minute, second
were preserved in standard SEG-Y header locations. SEG-Y file names designate streamer type
and line number.
Sample rates:
lines: 1-13, 22-41, 54-58 - 300 microseconds
lines: 14-21, 42-53 - 150 microseconds
Data Display
resample - NSRF and SE100 data were desampled to a 1 millisecond sample rate.
highpass filter
NSRF: lowcut ramp (100% cut below 60 Hz, 100% passed above 100 Hz)
SE100: lowcut ramp (100% cut below 30 Hz, 100% passed above 45 Hz)
Image Files
A 100 millisecond AGC window was applied. Profiles are variable-density blue/red
(blue=positive, red=negative). Vertical scale is in milliseconds two-way travel time, horizontal
scale bar is provided at bottom of each section. Shotpoints and line crossings are annotated
along the horizontal axis.
