Filters: partyWithName: PCMSC Science Data Coordinator (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Guy R Gelfenbaum (X)

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Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2014 This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2014 (USGS Field Activity Number 2014-631-FA). Bathymetry data were collected using four 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 degree 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... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, July 2016, collected from kayak This part of the data release presents bathymetry data from the Elwha River delta collected in July 2016 using a kayak. The kayak was equipped with a single-beam echosounder and a survey-grade global navigation satellite system (GNSS) receiver. Tags: Bathymetry and Elevation, Clallum 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 Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, August 2022 Two dams on the Elwha River, Washington State, USA trapped over 20 million m3 of sediment, reducing downstream sediment fluxes and contributing to erosion of the river's coastal delta. The removal of the Elwha and Glines Canyon dams between 2011 and 2014 induced massive increases in river sediment supply and provided an unprecedented opportunity to examine the response of a delta system to changes in sediment supply. The U.S. Geological Survey (USGS) developed an integrated research program aimed at understanding the ecosystem responses following dam removal. The research program included repeated surveys of beach topography, nearshore bathymetry, and surface sediment grain size to quantify changes in delta morphology... Categories: Data; Tags: Geomorphology, Sedimentology Topography data from the Elwha River delta, Washington, August 2022 This part of the data release presents topography data from the Elwha River delta collected in August 2022. Topography data were collected on foot with global navigation satellite system (GNSS) receivers mounted on backpacks. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, All tags... GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Radiocarbon data from coastal wetlands on the Hawaiian islands of Kaua'i, O'ahu, and Hawai'i This portion of the data release presents radiocarbon age data from 66 samples collected from Anahola Valley (Kaua'i), Kahana Valley (O'ahu), and Pololu Valley (Hawai'i). Sample ages were determined by the National Ocean Sciences Accelerator Mass Spectrometry (NOSAMS) facility. The data are provided in a comma-delimited spreadsheet (.csv). Categories: Data; Tags: Anahola Valley, CMHRP, Coastal and Marine Hazards and Resources Program, Hawai'i, Hawaiian Islands, All tags... Kahana Valley, Kaua'i, Nonliving resources, O'ahu, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Physical/Chemical Features, Pololu Valley, State of Hawai'i, Substrate, U.S. Geological Survey, USGS, carbon-14 analysis, geoscientificInformation, sediment, sediment transport, tsunamis, tsunamis, Fewer tags Beach topography of the Columbia River littoral cell, Washington and Oregon, 2020 This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2020 (USGS Field Activity Number 2020-622-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Beach topography of the Columbia River littoral cell, Washington and Oregon, 2017 This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2017 (USGS Field Activity Number 2017-666-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, January 2015, collected from personal watercraft This part of the data release presents bathymetry data from the Elwha River delta collected in January 2015 using two personal watercraft (PWCs). The PWCs were equipped with single-beam echosounders and survey-grade global navigation satellite system (GNSS) receivers. Tags: Bathymetry and Elevation, CMHRP, Clallum County, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... Elwha River, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Core descriptions and sand bed thickness data from Kahana Valley, O'ahu, Hawai'i This portion of the data release contains information on cores that were collected by the U.S. Geological Survey in Kahana Valley, O'ahu, Hawaii in 2015 and 2017. Sites were cored in order to describe wetland stratigraphy and to identify potential tsunami deposits. These cores contain mud, peat, fluvial sands, and marine carbonate sands, reflecting deposition in a variety of coastal environments. PDF files describe twenty-four (24) gouge and ‘Russian’ cores (hand held, side-filling peat augers) that were collected and described in the field. Cores collected in 2017 were described using the Troels-Smith sediment classification scheme (Troels-Smith, 1955; Nelson, 2015). Another pdf file (Kahana_cores_legend.pdf) contains... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Hawaiian Islands, Kahana Valley, Nonliving resources, All tags... O'ahu, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Physical/Chemical Features, State of Hawai'i, Substrate, U.S. Geological Survey, USGS, core analysis, geoscientificInformation, sediment, tsunamis, Fewer tags Vibracore photographs, computed tomography scans, and core-log descriptions from Pololu Valley, Island of Hawaii This portion of the data release contains information on vibracores that were collected by the U.S. Geological Survey in Pololu Valley, Island of Hawai'i in 2014. Five sites were cored in order to describe wetland stratigraphy and to identify potential tsunami deposits. These vibracores contain mud, peat, fluvial sands, and marine volcanic sands, reflecting deposition in a variety of coastal environments. Two (2) pdf files (VC1.pdf, VC2.pdf) describe vibracores that were split, imaged by a line-scanner camera, scanned to generate computed tomagraphic (CT) images, and visually described. A detailed description of the upper 150 cm of VC1 using the Troels-Smith sediment classification scheme (Troels-Smith, 1955; Nelson,... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Hawaiian Islands, Island of Hawai'i, Nonliving resources, All tags... PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Physical/Chemical Features, Pololu Valley, State of Hawai'i, Substrate, U.S. Geological Survey, USGS, core analysis, geoscientificInformation, sediment, tsunamis, Fewer tags Nearshore bathymetry data from the Elwha River delta, Washington, January 2015, collected from kayak This part of the data release presents bathymetry data from the Elwha River delta collected in January 2015 using a kayak. The kayak was equipped with a single-beam echosounder and a survey-grade global navigation satellite system (GNSS) receiver. Tags: Bathymetry and Elevation, CMHRP, Clallum County, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... Elwha River, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Hydrodynamic modeling of the mouth of the Columbia River, Oregon and Washington, 2013 A process-based numerical model of the mouth of the Columbia River (MCR) and estuary, Oregon and Washington, was applied to simulate hydrodynamic conditions for the time period of the Office of Naval Research-funded River and Inlets Dynamics (RIVET II) experiment between May 9 and June 15, 2013. The model application was constructed using Delft3D, an open-source software package used to solve the unsteady shallow water equations to simulate water motion due to tides, waves, wind, and buoyancy effects (Lesser and others, 2004). This portion of the USGS data release describes the model application for this experiment and presents input files necessary to run the Delft3D model. Model Description The model application... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service Digital elevation models (DEMs) of the Elwha River delta, Washington, February 2016 This portion of the USGS data release presents digital elevation models (DEMs) derived from bathymetric and topographic surveys conducted on the Elwha River delta in February 2016 (USGS Field Activity Number 2016-608-FA). Nearshore bathymetry data were collected using two personal watercraft (PWCs) and a kayak equipped with single-beam echosounders and survey-grade global navigation satellite systems (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: Clallum County, Echo Sounders, Elwha River, GPS (Global Positioning System), Olympic Peninsula, All tags... Strait of Juan de Fuca, Water Depth, bathymetry measurement, digital elevation models, elevation, topography, Fewer tags Beach topography of the Columbia River littoral cell, Washington and Oregon, 2018 This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2018 (USGS Field Activity Number 2018-652-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2020 This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2020 (USGS Field Activity Number 2020-622-FA). Bathymetry data were collected using four 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-degree 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... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2016 This portion of the USGS data release presents bathymetry data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon in 2016 (USGS Field Activity Number 2016-663-FA). Bathymetry data were collected using four 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 degree 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... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... Echo Sounders, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, single-beam echo sounder, Fewer tags Surface-sediment grain-size distributions of the Elwha River delta, Washington, July 2017 This portion of the USGS data release presents sediment grain-size data from samples collected on the Elwha River delta, Washington, in July 2017 (USGS Field Activity Number 2017-638-FA). Surface sediment was collected on July 20, 2017 at a total of 80 locations using a small ponar, or 'grab', sampler from the R/V Frontier in water depths between about 1 and 17 m around the delta. An additional 31 samples were collected by hand at low tide. A handheld global satellite navigation system (GNSS) receiver was used to determine the locations of sediment samples. Grab samples that yielded less than 50 g of sediment were omitted from analysis. The grain-size distributions of samples that yielded more than 50 g of sediment... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMHRP, Clallam County, Coastal and Marine Hazards and Resources Program, Elwha River, GPS (Global Positioning System), All tags... Global Positioning System (GPS) observations, Olympic Peninsula, PCMSC, Pacific Coastal and Marine Science Center, Strait of Juan de Fuca, Substrate, U.S. Geological Survey, USGS, grain-size analysis, ocean processes, oceans, sediment, sediment transport, sedimentation, Fewer tags Beach topography of the Columbia River littoral cell, Washington and Oregon, 2015 This portion of the USGS data release presents topography data collected during surveys performed in the Columbia River littoral cell, Washington and Oregon, in 2015 (USGS Field Activity Number 2015-647-FA). Topographic profiles were collected by walking along survey lines with global navigation satellite system (GNSS) receivers mounted on backpacks. Prior to data collection, vertical distances between the GNSS antennas and the ground were measured using a tape measure. Hand-held data collectors were used to log raw data and display navigational information allowing surveyors to navigate survey lines spaced at 100- to 1000-m intervals along the beach. Profiles were surveyed from the landward edge of the study area... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Grays Harbor County, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, elevation, topography, Fewer tags Beach topography and nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2014 This USGS data release presents data collected during surveys of nearshore bathymetry and beach topography from the Columbia River littoral cell, Washington and Oregon. Survey operations were conducted between July 14 and August 16, 2014 (USGS Field Activity Number 2014-631-FA) by a team of scientists from the U.S. Geological Survey Pacific Coastal and Marine Science Center, Washington State Department of Ecology, and Oregon State University. Nearshore bathymetry data were collected using four personal watercraft (PWCs), each equipped with single-beam echosounders and survey-grade global navigation satellite systems (GNSS). Topography data were collected by walking along survey lines with GNSS receivers mounted... Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), Water Depth, topographic mapping Beach topography and nearshore bathymetry of the Columbia River littoral cell, Washington and Oregon, 2015 This USGS data release presents data collected during surveys of nearshore bathymetry and beach topography from the Columbia River littoral cell, Washington and Oregon. Survey operations were conducted between July 13 and August 11, 2015 (USGS Field Activity Number 2015-647-FA) by a team of scientists from the U.S. Geological Survey Pacific Coastal and Marine Science Center, Washington State Department of Ecology, and Oregon State University. Nearshore bathymetry data were collected using four personal watercraft (PWCs), each equipped with single-beam echosounders and survey-grade global navigation satellite systems (GNSS). Topography data were collected by walking along survey lines with GNSS receivers mounted... Tags: Bathymetry and Elevation, Echo Sounders, GPS (Global Positioning System), Water Depth, topographic mapping 1 2 3 4 »