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Digital elevation model (DEM) of the Sacramento River Deep Water Ship Channel (DWSC), Sacramento-San Joaquin Delta, California This metadata describes a digital elevation model (DEM) created from bathymetric and topographic data collected between 2017 and 2019 in the Sacramento River Deep Water Ship Channel (DWSC), northern Sacramento-San Joaquin Delta, California. We merged the newly collected bathymetric and topographic data presented in this data release (DOI:10.5066/P9AQSRVH) with 2019 surveys by the California Department of Water Resources (DWR) and 2017 USGS Sacramento Delta Lidar, to produce a seamless digital elevation model of the DWSC at a grid resolution of 1 m. Tags: Bathymetry, Bathymetry and Elevation, CMHRP, Coastal and Marine Hazards and Resources Program, PCMSC, All tags... Pacific Coastal and Marine Science Center, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Joaquin River, Seafloor Topography, State of California, U.S. Geological Survey, USGS, altimetry, bathymetry, bathymetry measurement, digital elevation models, field observation, geographic information systems, geoscientificInformation, geospatial datasets, lidar, marine geophysics, multibeam sonar, sea-floor characteristics, seabed, topographic mapping, topography, Fewer tags Time-series oceanographic data collected off Makua, Kauai, USA, August 2016 Time-series data of water-surface elevation, wave height, water-column currents, temperature were acquired for 6 days off the north coast of the island of Kauai, Hawaii in support of a study on the coastal circulation patterns and groundwater input to the coral reefs of Makua. Tags: CMHRP, CORAL REEFS, Coastal and Marine Hazards and Resources Program, Island of Kauai, Kauai, All tags... Kauai County, Makua Reef, OCEAN CURRENTS, Oceans, PCMSC, Pacific Coastal and Marine Science Center, THERMOCLINE, Tunnels Beach, U.S. Geological Survey, USGS, WATER TEMPERATURE, Water Column Features, geoscientificInformation, marine water quality, ocean salinity, ocean sciences, ocean temperature, physical oceanography, time series datasets, Fewer tags Orthomosaic imagery for the intertidal zone at Post Point, Bellingham Bay, WA, 2019-06-06 This portion of the data release presents a high-resolution orthomosaic images of the intertidal zone at Post Point, Bellingham Bay, WA. The orthomosaics were derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-06. The orthomosaics are presented with two resolutions: one image, covering the entire survey area, has a resolution of 2 centimeters per pixel; the other image which was derived from a lower-altitude flight, covers an inset area within the main survey area and has a resolution of 1 centimeter per pixel. The raw imagery used to create the orthomosaics was acquired using a UAS fitted with a Ricoh GR II digital camera featuring a global... Tags: Bathymetry and Elevation, Bellingham, Bellingham Bay, CHMRP, Coastal and Marine Hazards and Resources Program, All tags... Fairhaven, PCMSC, Pacific Coastal and Marine Science Center, Post Point, Puget Sound, Salish Sea, SfM, South Bellingham, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, Whatcom County, aerial and satellite photography, aerial photography, altimetry, coastal processes, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Ground control point locations for UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 This portion of the data release presents the locations of the temporary ground control points (GCPs) used for the structure-from-motion (SfM) processing of the imagery collected during the July 2021 unoccupied aerial system (UAS) surveys of the ocean beach at Fort Stevens State Park, OR, and Benson Beach at Cape Disappointment State Park, WA. Eighteen temporary ground control points (GCPs) were distributed throughout the survey area to establish survey control. The GCPs consisted of a combination of small square tarps with black-and-white cross patterns and "X" marks placed on the ground using temporary chalk. The GCP positions were measured using dual-frequency post-processed kinematic (PPK) GPS with corrections... Categories: Data; Tags: Bathymetry and Elevation, Benson Beach, CHMRP, Cape Disappointment, Clatsop County, All tags... Clatsop Spit, Coastal and Marine Hazards and Resources Program, Columbia River, Fort Stevens, North Head, PCMSC, Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, State of Oregon, State of Washington, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial and satellite photography, aerial photography, altimetry, elevation, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, orthophotography, photography, remote sensing, remote sensing, topographic maps, topography, Fewer tags Parent and alkylated polycyclic aromatic hydrocarbons (PAHs) in watershed soil and reef sediment at Olowalu, Maui, 2022 Seventy six parent and alkylated polycyclic aromatic compounds, including polycyclic aromatic hydrocarbons (PAHs), were quantified in watershed and reef sediment from Olowalu, Maui, in February 2022 to explore urban and wildfire effects. Sample locations and total organic carbon contents (OC) are available in the accompanying file OlowaluWatershedReef2022_compositions.csv. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Kealaloloa Ridge, Kihei, Kulanihakoi Gulch, All tags... Maalaea, Manawaipueo Gulch, Maui, Olowalu Stream, Opunaha Gulch, PCMSC, Pacific Coastal and Marine Science Center, Papalaua, Substrate, U.S. Geological Survey, USGS, Ukumehame Gulch, Waiakoa Gulch, Waikapu Stream, beryllium-7 dating, cesium-137 dating, environment, environmental chemistry, fires, fringing reef, geochemistry, geoscientificInformation, lava flow, mercury analysis, metal elements, radiometric dating, rare earth elements, river discharge, sediment geochemistry, sediment transport, soil chemistry, stream, volcanic island, watershed, Fewer tags Bathymetry Hillshade [2m]--Offshore of Monterey, California This part of DS 781 presents data for the bathymetry map of the Offshore of Monterey map area, California. Bathymetry data are provided as separate grids depending on resolution. This metadata file refers to the data included in "BathymetryHS_2m_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report 2016–1110,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Backscatter, Bathymetry, Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Continental/Island Shelf, Ecosystem, Fisheries, Geology, Intensity, Marina, Marine Nearshore Subtidal, Marine Offshore Subtidal, Monterey, Monterey County, Multibeam, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Seafloor Character, Seafloor Topography, Seaside, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:8de1c4e2-e028-4045-95bc-2b5c2e0b95b6, Unconsolidated Mineral Substrate, bathymetry, bathymetry and elevation, bathymetry measurement, distributions, environment, geoscientificInformation, imageryBaseMapsEarthCover, marine geophysics, oceans, sonar methods, Fewer tags 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 BackscatterB [EM300]--Offshore Aptos, California This part of DS 781 presents data for the acoustic-backscatter map of Offshore of Aptos map area, California. Backscatter data are provided as two separate grids depending on mapping system and processing method. This metadata file refers to the data included in "BackscatterB_EM300_OffshoreAptos.zip," which is accessible from https://doi.org/10.5066/F7K35RQB. These data accompany the pamphlet and map sheets of Cochrane, G.R., Johnson, S.Y., Dartnell, P., Greene, H.G., Erdey, M.D, Dieter, B.E., Golden, N.E., Hartwell, S.R., Ritchie, A.C., Kvitek, r.G., Maier, K.L., Endris, C.A., Davenport, C.W., Watt, J.T., Sliter, R.W., Finlayson, D.P., and Krigsman, L.M., (G.R. Cochrane and S.A. Cochran, eds.), 2016, California... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Acoustic Reflectivity, Aptos, Backscatter, Bathymetry, CMHRP, All tags... Coastal and Marine Hazards and Resources Program, Continental/Island Shelf, Fisheries, Geology, Intensity, Marine Nearshore Subtidal, Marine Offshore Subtidal, Northern California Ecoregion, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Santa Cruz County, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, Unconsolidated Mineral Substrate, distributions, ecosystems, environment, geoscientificInformation, image mosaics, imageryBaseMapsEarthCover, marine geophysics, marine geophysics, multibeam sonar, oceans, physical habitats and geomorphology, sea-floor acoustic reflectivity, sea-floor characteristics, seabed, sidescan sonar, sidescan sonar, sonar methods, Fewer tags Bathymetry Hillshade--Offshore Santa Cruz, California This part of DS 781 presents data for the shaded-relief bathymetry map of Offshore Santa Cruz, California. The raster data file is included in "BathymetryHS_OffshoreSantaCruz.zip", which is accessible from https://doi.org/10.5066/F7TM785G. These data accompany the pamphlet and map sheets of Cochrane, G.R., Dartnell, P., Johnson, S.Y., Erdey, M.D., Golden, N.E., Greene, H.G., Dieter, B.E., Hartwell, S.R., Ritchie, A.C., Finlayson, D.P., Endris, C.A., Watt, J.T., Davenport, C.W., Sliter, R.W., Maier, K.L., and Krigsman, L.M. (G.R. Cochrane and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Santa Cruz, California: U.S. Geological Survey Open-File Report 2016-1024, pamphlet 40 p., 10 sheets,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, Continental/Island Shelf, Marine Nearshore Subtidal, All tags... Marine Offshore Subtidal, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Santa Cruz, Santa Cruz County, Seafloor Topography, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:55689f89e4b0d9246a9f6253, Unconsolidated Mineral Substrate, bathymetry, bathymetry and elevation, bathymetry measurement, distributions, environment, geoscientificInformation, imageryBaseMapsEarthCover, marine geophysics, marine geophysics, oceans, seabed, sidescan sonar, sonar methods, Fewer tags Seafloor character, 2-m-resolution grid--Offshore of Monterey, California This part of DS 781 presents data for the seafloor-character map of the Offshore of Monterey map area, California. Seafloor-character data are provided as two separate grids depending on resolution of the mapping system and processing method. The raster data file is included in "SeafloorCharacter_2m_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California:... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Backscatter, Bathymetry, Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Continental/Island Shelf, Ecosystem, Fisheries, Geology, Intensity, Marina, Marine Nearshore Subtidal, Marine Offshore Subtidal, Monterey, Monterey County, Multibeam, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Seafloor Character, Seafloor Topography, Seaside, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:7188e403-5a46-434e-8367-1a9af5782448, Unconsolidated Mineral Substrate, distributions, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, sea-floor characteristics, substrate, Fewer tags Backscatter [5m]--Offshore Monterey, California This part of DS 781 presents data for the acoustic-backscatter map of the Offshore of Monterey map area, California. Backscatter data are provided as separate grids depending on resolution. This metadata file refers to the data included in "Backscatter_5m_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Backscatter, Bathymetry, Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Continental/Island Shelf, Ecosystem, Fisheries, Geology, Intensity, Marina, Marine Nearshore Subtidal, Marine Offshore Subtidal, Monterey, Monterey County, Multibeam, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Seafloor Character, Seafloor Topography, Seaside, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:a43df4fc-7f52-4007-a276-ca428e788d4f, Unconsolidated Mineral Substrate, distributions, environment, geoscientificInformation, image mosaics, imageryBaseMapsEarthCover, marine geophysics, marine geophysics, oceans, physical habitats and geomorphology, sea-floor acoustic reflectivity, sea-floor characteristics, seabed, sidescan sonar, sidescan sonar, Fewer tags Bathymetry [5m]--Offshore of Monterey, California This part of DS 781 presents data for the bathymetry map of the Offshore of Monterey map area, California. Bathymetry data are provided as separate grids depending on resolution. This metadata file refers to the data included in "Bathymetry_5m_OffshoreMonterey.zip," which is accessible from https://doi.org/10.5066/F70Z71C8. These data accompany the pamphlet and map sheets of Johnson, S.Y., Dartnell, P., Hartwell, S.R., Cochrane, G.R., Golden, N.E., Watt, J.T., Davenport, C.W., Kvitek, R.G., Erdey, M.D., Krigsman, L.M., Sliter, R.W., and Maier, K.L. (S.Y. Johnson and S.A. Cochran, eds.), 2016, California State Waters Map Series—Offshore of Monterey, California: U.S. Geological Survey Open-File Report 2016–1110, pamphlet... Categories: Data; Types: Citation, Downloadable, GeoTIFF, Map Service, Raster; Tags: Backscatter, Bathymetry, Bathymetry, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... Continental/Island Shelf, Ecosystem, Fisheries, Geology, Intensity, Marina, Marine Nearshore Subtidal, Marine Offshore Subtidal, Monterey, Monterey County, Multibeam, Northern California Ecoregion, Ocean Floor Topography, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Seafloor Character, Seafloor Topography, Seaside, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, USGS:46ed155a-278e-44c2-ad93-4219a0ec8d22, Unconsolidated Mineral Substrate, bathymetry, bathymetry and elevation, bathymetry measurement, distributions, environment, geoscientificInformation, imageryBaseMapsEarthCover, marine geophysics, oceans, sonar methods, Fewer tags Projected coastal flooding extents for 1-, 20-, and 100-year return interval storms and 0.00, +0.25, +0.50, +1.00, +1.50, +2.00, and +3.00 meter sea-level rise scenarios in American Samoa This data release provides flooding extent polygons based on sea-level rise and wave-driven total water levels for the coast of American Samoa's most populated islands of Tutuila, Ofu-Olosega, and Tau. Oceanographic, coastal engineering, ecologic, and geospatial data and tools were combined to evaluate the increased risks of storm-induced coastal flooding due to climate change and sea-level rise. We followed risk-based valuation approaches to map flooding due to waves and storm surge at 10-m2 resolution along these islands coastlines for annual (1-year), 20-year, and 100-year return-interval storm events and +0.25 m, +0.50 m, +1.00 m, +1.50 m, +2.00 m, and +3.00 m sea-level rise scenarios. Categories: Data; Tags: CMHRP, Climate Change, Coastal Processes, Coastal and Marine Hazards and Resources Program, Earth sciences, All tags... Effects of climate change, Environmental Equity, Environmental Justice, Flooding, Floods, Geospatial Datasets, Mathematical modeling, Ofu Island, Olosega Island, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Predictions, Sea level change, Sea-level Change, Spatial Analysis, Storms, Tau Island, Territory of American Samoa, Tutuila Island, U.S. Geological Survey, USGS, Waves, environment, geoscientificInformation, oceans, 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 Fish abundance in the Elwha River estuary, Washington, from 2006 to 2014 This portion of the data release presents fish abundance data from samples collected in the Elwha River estuary, Washington, in 2006, 2007, 2013, and 2014 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We used the Puget Sound beach seining protocol (Simenstad and others, 1991) to sample fish populations in the Elwha River estuary complex. The beach seine was 38 m long x 2 m deep, with a 2 m x 2 m bag in the center of the net; mesh size was 3.18 mm, 6.35 mm, and 31.75 mm, for the bag, center panel, and wings, respectively. The seine net was deployed from bank to bank by a small skiff and then pulled on shore. The number of... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... biota, fish, fish, fish, fishes, oceans, species diversity, Fewer tags Terrestrial invertebrate abundance in the Elwha River estuary, Washington, in 2007 and 2013. This portion of the data release presents terrestrial invertebrate abundance data from samples collected in emergent and shrub vegetation along the edge of the Elwha River estuary, Washington, in 2007 and 2013 (no associated USGS Field Activities numbers because data were collected predominantly by biologists from the Lower Elwha Klallam Tribe). We deployed terrestrial insect fallout traps at ten locations in the east estuary, five replicates each in shrub and emergent (littoral) vegetation habitats. Clear, rectangular traps (2,400 cm2 in 2007 and 3,526 cm2 in 2013) were filled with 5 cm of filtered soapy water and deployed for 72 hours. Invertebrate counts from 2013 were standardized to the 2007 bin size to account... Categories: Data; Types: Citation; Tags: Clallam County, Elwha River, Olympic Peninsula, State of Washington, Strait of Juan de Fuca, All tags... animals/invertebrates, biota, invertebrates, invertebrates, invertebrates, oceans, species diversity, 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 Hydrodynamic and sediment transport model of the mouth of the Columbia River, Washington and Oregon, 2020-2021 A three-dimensional hydrodynamic and sediment transport model application of the mouth of the Columbia River (MCR) was constructed using the Delft3D4 (D3D) modeling suite (Deltares, 2021) to simulate water levels, flow, waves, and sediment transport for time period of September 22, 2020 to March 10, 2021. The model was used to predict the dispersal of sediment from a submerged, nearshore berm composed of sediment that was dredged from the entrance to the MCR navigation channel and placed on the northern flank of the ebb-tidal delta. This data release describes the development and validation of the model application and provides input files suitable to run the models on D3D software version 4.04.01. Categories: Data; Tags: CMHRP, Clatsop County, Coastal and Marine Hazards and Resources Program, Columbia River, PCMSC, All tags... Pacific Coastal and Marine Science Center, Pacific County, Pacific Ocean, U.S. Geological Survey, USGS, coastal processes, marine water quality, numerical modeling, oceans, water circulation, water column features, Fewer tags Digital Shoreline Analysis System (DSAS) version 5.0 transects with shoreline rate change calculations at Barter Island Alaska, 1947 to 2020 This dataset consists of rate-of-change statistics for the shorelines at Barter Island, Alaska for the time period 1947 to 2020. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. A reference baseline was used as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing measurement points, which are then used to calculate shoreline change rates. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic National Wildlife Refuge, Arctic Ocean, Barter Island, CMHRP, Coastal and Marine Hazards and Resources Program, All tags... DSAS, Digital Shoreline Analysis System, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Physical habitats and geomorphology, State of Alaska, U.S. Geological Survey, USGS, coastal erosion, coastal processes, environment, geomorphology, geoscientificInformation, geospatial datasets, oceans, permafrost, shoreline accretion, Fewer tags « 1 2 3 4 5 ... 27 »