Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington

Online link https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F72N51GC/elwha_overview_metadata.faq.html
Description This data release contains bathymetry and topography data from surveys performed on the Elwha River delta between 2010 and 2017. Sediment grain-size data are available for selected surveys performed after May 2012. This data release will be updated as additional bathymetry, topography, and surface-sediment grain-size data from future surveys become available.
Originators Stevens, Andrew W.; Gelfenbaum, Guy R.; Warrick, Jonathan A.; Miller, Ian M.; and Weiner, Heather M.

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Photographs showing equipment used during bathymetry, topography, and sediment grain-size surveys on the Elwha River delta, Washington showing A) personal watercraft, and B) kayak each equipped with global navigation satellite system (GNSS) receivers and single-beam echosounders, C) GNSS receiver mounted on a backpack, D) GNSS base station, E) collection of surface sediment sample with a grab sampler, and F) sampling sediment from grab sample.
Photographs showing equipment used during bathymetry, topography, and sediment grain-size surveys on the Elwha River delta, Washington showing A) personal watercraft, and B) kayak each equipped with global navigation satellite system (GNSS) receivers and single-beam echosounders, C) GNSS receiver mounted on a backpack, D) GNSS base station, E) collection of surface sediment sample with a grab sampler, and F) sampling sediment from grab sample.