Page 195 - Acquisition and Processing of Marine Seismic Data

186 3. NOISE IN MARINE SEISMICS

FIG. 3.15 (A) Bird noise (red arrows) on a band-pass filtered shot gather along with its amplitude spectrum (upper panel).
(B) An example shot gather filtered with an f-k filter to make the bird noise (red arrows) more clear (upper panel is its f-k spec-
trum after filtering). R, seabed reflection; D, direct wave; B, bird noise.