Seafloor Depth Chart

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Seafloor depth chart. Deep sea basins washington oregon and california report and data. Seafloor gravity maps aren t entirely new but until recently relied solely on data from older satellites. These were only sensitive enough to see the gravitational lumps caused by relatively. Elwha river bathymetry and acoustic backscatter 2010 bathymetry and topography data 2010 2016.
Whether the seafloor is composed of mud sand gravel etc. California seafloor mapping program central oregon data. Geophysical maps each consist of three sheets a base bathymetric map a magnetic map and a gravity map and where practicable a sediment overprint nos 1308n 17s. Use the map to locate navigation aids safety depth contours nearby marine services tides and currents and more.
Backscatter data are used in part to infer substrate type i e. Please see our system requirements for more. Nautical chart is the all essential cartographic reference for boaters worldwide. Columbia river mouth data.
A multibeam sonar collects bathymetric depth and backscatter data. You may need to update your browser or use a different browser. These data are georeferenced with a high precision gps unit and compiled to form a three dimensional map of the seafloor.