Comments:
The trace headers for all lines had cdp’s mistakenly recorded in the
ffid field. This was corrected prior to GMA processing. A .420_010 nav
file was downloaded from InfoBank. The segy file for line 2 was edited
to begin at cdp #110 because there was more data than nav at the sol.
Line 3 was provided in two parts, as two segy files. These were
renamed lines 3a and 3b. The nav for line 3 was split up to match the
renamed parts.
