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Federal
Raw Knudsen 3260 chirp subbottom profiler CHIRP Subbottom Profiler data for the Necker Ridge, southwest of Hawaiian Ridge. recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Knudsen 3260 chirp subbottom profiler CHIRP Subbottom Profiler data were collected in Raw Knudsen SEG-Y Datagram format.