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Digital elevation models (DEMs) of the Elwha River delta, Washington, July 2015 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in July 2015 (USGS Field Activity Number 2015-648-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topographic data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization)... Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, May 2011 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in May 2011 (USGS Field Activity Number W-04-11-PS). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization) and... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Bathymetry and acoustic backscatter data of the Sacramento River, from the Feather River to Knights Landing, California in February, 2011 Abstract On February 1, 2011, the USGS Pacific Coastal and Marine Science Center (PCMSC) team carried out a project using interferometric sidescan sonar to characterize the riverbed and channel banks of a 12 mile reach of the Sacramento River near the town of Knights Landing, California (River Mile 79 through River Mile 91). The project was developed in coordination with David Smith, Engineering Research and Development Center (ERDC) of the US Army Corps of Engineers, and Brian Mulvey, Sacramento District Environmental Planning Section of the US Army Corps of Engineers as part of an effort to aid in understanding fish response to the creation of safe habitat associated with levee restoration efforts in two 1.5 mile... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, Feather River, GPS (Global Positioning System), Geophysics, All tags... Knights Landing, Sacramento River, Water Depth, Woodland, acoustic methods, bathymetry, digital elevation models, elevation, interferometric sonar, levee, multibeam echo sounder, real-time data, river, rivers, sea-floor acoustic reflectivity, sea-floor characteristics, sidescan sonar, Fewer tags Nearshore bathymetry data from northern Monterey Bay, California, October 2014 This portion of the USGS data release presents bathymetry data collected during surveys performed in northern Monterey Bay, California in October 2014 (USGS Field Activity Number 2014-676-FA). Bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey. Positioning... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMGP, Coastal and Marine Geology Program, Echo Sounders, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Monterey Bay, Monterey County, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Cruz County, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, August 2012 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in August 2012 (USGS Field Activity Number W-05-12-PS). Nearshore bathymetry data were collected using two survey vessels equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization) and North American... Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, May 2012 This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in May 2012 (USGS Field Activity Number W-03-12-PS). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The PWC sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey. Positioning... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Clallam County, Echo Sounders, Elwha River, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, Strait of Juan de Fuca, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, May 2012 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in May 2012 (USGS Field Activity Number W-03-12-PS). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization) and... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, March 2013 This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in March 2013 (USGS Field Activity Number W-01-13-PS). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The PWC sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey.... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Clallam County, Echo Sounders, Elwha River, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, Strait of Juan de Fuca, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Digital elevation models (DEMs) of northern Monterey Bay, California, October 2014 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted along northern Monterey Bay, California, in October 2014 (USGS Field Activity Number 2014-676-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected using an all-terrain vehicle equipped with a GNSS receiver and on foot with GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to... Types: Citation; Tags: Bathymetry and Elevation, CMGP, Coastal and Marine Geology Program, Echo Sounders, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Monterey Bay, Monterey County, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Cruz County, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, September 2013 This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in September 2013 (USGS Field Activity Number W-07-13-PS). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The PWC sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey.... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Clallam County, Echo Sounders, Elwha River, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, Strait of Juan de Fuca, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, August 2012 This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in August 2012 (USGS Field Activity Number W-05-12-PS). Bathymetry data were collected using the R/V Frontier and a personal watercraft (PWC), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The sonar systems on the survey vessels consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a... Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Clallam County, Echo Sounders, Elwha River, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, Strait of Juan de Fuca, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, September 2010 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in September 2010 (USGS Field Activity Number W-03-10-PS). Nearshore bathymetry data were collected using a personal watercraft (PWC) and a small boat, each equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, September 2013 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in September 2013 (USGS Field Activity Number W-07-13-PS). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization)... Categories: Data; Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, April 2014 This portion of the USGS data release presents bathymetry data collected during surveys performed on the Elwha River delta, Washington in April 2014 (USGS Field Activity Number 2014-620-FA). Bathymetry data were collected using two personal watercraft (PWCs), each equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The PWC sonar systems consisted of an Odom Echotrac CV-100 single-beam echosounder and 200 kHz transducer with a 9° beam angle. Raw acoustic backscatter returns were digitized by the echosounder with a vertical resolution of 1.25 cm. Depths from the echosounders were computed using sound velocity profiles measured using a YSI CastAway CTD during the survey.... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Clallam County, Echo Sounders, Elwha River, GPS (Global Positioning System), All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, Strait of Juan de Fuca, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Digital elevation models (DEMs) of the Elwha River delta, Washington, September 2014 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta, Washington, in September 2014 (USGS Field Activity Number 2014-649-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Topography data were collected on foot with survey-grade GNSS receivers mounted on backpacks. Positions of the survey platforms were referenced to a GNSS base station placed on a benchmark with known horizontal and vertical coordinates relative to the North American Datum of 1983 (CORS96 realization)... Types: Citation; Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, All tags... Water Depth, bathymetry, bathymetry measurement, digital elevation models, elevation, single-beam echo sounder, topographic mapping, topography, Fewer tags « 1 2