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Acoustic backscatter from 2013 interferometric swath bathymetry systems survey of Columbia River Mouth, Oregon and Washington

Online link https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7T72FHB/USGS_CR_backscatter_UTM10_NAD83.faq.html
Description This part of the USGS data release presents acoustic backscatter data for the Columbia River Mouth, Oregon and Washington. The acoustic backscatter data of the Columbia River Mouth, Oregon and Washington were collected by the U.S. Geological Survey (USGS). Mapping was completed in 2013, using a 234-kHz SEA SWATHPlus interferometric system. These data are not intended for navigational purposes.
Originators Gelfenbaum, Guy R.; Finlayson, David P.; and Dartnell, Peter

Related topics

Bathymetry, Marine geology, Multibeam sonar, Sea-floor acoustic reflectivity, GeoscientificInformation, ImageryBaseMapsEarthCover, Oceans, Bathymetry and Elevation, Marine geology, Marine geophysics, Single-beam echo sounder
Greyscale image map showing acoustic backscatter of the Columbia River mouth off Oregon and Washington. Lighter tones show stronger, high-intensity backscatter indicating harder and rougher bottom types such as rocky outcrops or coarse sediment; darker tones show weaker, low-intensity backscatter indicating softer bottom types such as fine sediment.
Greyscale image map showing acoustic backscatter of the Columbia River mouth off Oregon and Washington. Lighter tones show stronger, high-intensity backscatter indicating harder and rougher bottom types such as rocky outcrops or coarse sediment; darker tones show weaker, low-intensity backscatter indicating softer bottom types such as fine sediment.