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Federal
Marine Trackline Geophysical Database for Side-Scan Sonar Data NGDA recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Marine Trackline Geophysical data represented within the side-scan sonar data are from towed instruments closer to the seafloor that use sound to image features on... -
Federal
Marine Trackline Geophysical Database NGDA recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
This data set contains bathymetry, magnetic, gravity and seismic shot point navigation data collected during marine cruises from 1939 to the present. Coverage is... -
Federal
Marine Trackline Geophysical Database for Sub-Bottom Seismic Data NGDA recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Marine Trackline Geophysical data represented by sub-bottom seismic data, which we sometimes also call chirp (based on its operating mode), uses a 3.5 kHz operating... -
Federal
Marine Trackline Geophysical Database for M77 Data NGDA recent views
National Oceanic and Atmospheric Administration, Department of Commerce —
Marine Trackline Geophysical data represented by the M77 tag are inclusive of singlebeam bathymetry, marine magnetic, and gravity data and were collected during...