Filters: Tags: State of Washington (X) > Types: Map Service (X) > partyWithName: Pacific Coastal and Marine Science Center (X) > partyWithName: Andrew Stevens (X)

Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types OGC WFS Layer (2) OGC WMS Layer (2) OGC WMS Service (2) Citation (1) Contacts U.S. Geological Survey - ScienceBase PCMSC Science Data Coordinator U.S. Geological Survey Peter Dartnell David P Finlayson More... Categories Data (2) Tag Types Theme (2) Place (2) USGS Scientific Topic Keyword (2) Tag Schemes USGS Thesaurus (1) Marine Realms Information Bank (MRIB) Keywords (1) Geographic Names Information System (GNIS) (1) ISO 19115 Topic Category (1) Data Categories for Marine Planning (1) Global Change Master Directory (GCMD) (1) View Results as: JSON ATOM CSV

Bathymetry and backscatter from 2013 interferometric swath bathymetry systems survey of Columbia River Mouth, Oregon and Washington Introduction High-resolution swath bathymetry and backscatter were collected in the mouth of the Columbia River (MCR) as part of the Office of Naval Research (ONR) funded River and Inlet Dynamics Experiment in 2013. The goal of the U.S. Geological Survey’s component of the research was to evaluate the various hydrodynamic and sediment transport processes in the Columbia River estuary entrance using a combination of field observations coupled with Delft3D model simulations. The MCR is a dynamic estuary inlet with large waves, large tidal currents, and a significant river discharge, resulting in strong estuarine circulation. The field component of the study consisted of an intensive in-situ experiment including bottom-mounted... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Backscatter, Bathymetry, CMG, CMGP, Coastal and Marine Geology Program, All tags... Columbia River, Geophysics, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, State of Oregon, State of Washington, U.S. Geological Survey, USGS, data release, Fewer tags Digital seafloor images and sediment grain size from the mouth of the Columbia River, Oregon and Washington, 2014 Geo-referenced digital imagery of in-situ seafloor sediments in the mouth of the Columbia River was collected and analyzed to determine median grain size of the surface sediments. Digital imagery of the seafloor was collected with a “flying eyeball” (Rubin and others, 2007) from the R/V Parke Snavely from September 11 to September 13, 2014 (USGS Field Activity 2014-642-FA). The flying eyeball consists of a standard definition plumbing inspection video camera and LED light ring inserted in a 50 kg wrecking ball. The video camera has a resolution of 480 by 720 pixels with a resolution of 0.009 mm/pixel when the target is flush against the exterior surface of the lens. Sample locations were chosen to allow for the... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Columbia River, Marine Geology, State of Oregon, State of Washington, Substrate, All tags... estuarine processes, geology, geoscientificInformation, geospatial datasets, marine sediments, oceans, sediment, sediment transport, sediment transport, underwater photography, video observation, videography, Fewer tags