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Bathymetry data from Floras Lake, Oregon, June 2018 This portion of the USGS data release presents bathymetry data collected during surveys performed in Floras Lake, Oregon in June 2018 (USGS Field Activity Number 2018-636-FA). Floras Lake is a coastal lake in southern Oregon that is separated from the Pacific Ocean by sand dunes. It is not influenced by tides, although water levels fluctuate seasonally. Lake bed 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-degree beam angle. Depths from the lakebed to the echosounder were calculated using... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Cape Blanco, Coastal and Marine Hazards and Resources Program, Curry County, All tags... Echo Sounders, Floras Lake, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, PCMSC, Pacific Coastal and Marine Science Center, State of Oregon, U.S. Geological Survey, USGS, Water Depth, bathymetry, bathymetry measurement, elevation, geoscientificInformation, single-beam echo sounder, Fewer tags Acoustic-backscatter data from Floras Lake, Oregon, June 2018 This portion of the USGS data release presents acoustic-backscatter data collected during surveys performed in Floras Lake, Oregon in June 2018 (USGS Field Activity Number 2018-636-FA). Lake bed backscatter data were collected using a personal watercraft (PWC) equipped with a sidescan sonar system and global navigation satellite system (GNSS) receivers. The sonar system consisted of a Tritech Starfish 990F with a 1-MHz transducer and a 0.3-degree horizontal beam width. Output from the GNSS receivers and sonar system were combined in real time on the PWC by a computer running HYPACK hydrographic survey software. Navigation information was displayed on a video monitor, allowing PWC operators to navigate along survey... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: CMHRP, Cape Blanco, Coastal and Marine Hazards and Resources Program, Curry County, Echo Sounders, All tags... Floras Lake, GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, PCMSC, Pacific Coastal and Marine Science Center, State of Oregon, U.S. Geological Survey, USGS, geoscientificInformation, lake bed, lakebed acoustic reflectivity, lakebed characteristics, substrate, Fewer tags Substrate properties for invertebrate comparisons in Bellingham Bay, Washington, July 2019 and July-August 2020 Sediment grain-size distributions and total organic carbon contents were measured at four intertidal sites and three subtidal sites along the urban waterfront (east shore) of Bellingham Bay, Washington, July 3-11, 2019 and June 6-August 31, 2020. Intertidal substrate was sampled in eelgrass beds, and subtidal substrate was sampled inside and outside of the deep edge of eelgrass beds. Categories: Data; Tags: Bay, Bellingham Bay, CMHRP, Coastal and Marine Hazards and Resources Program, Grain-size analysis, All tags... Habitat, PCMSC, Pacific Coastal and Marine Science Center, Physical and chemical characteristics of habitats, Seagrass beds, Sediment, State of Washington, Substrate, Tidal flat, U.S. Geological Survey, USGS, Whatcom County, environment, geoscientificInformation, Fewer tags Water temperature time-series data from nearshore coral reef and anchialine pool locations along the west coast of Hawaii Island (2010-2013) Time-series data of water temperature were collected at 33 locations along the west coast of the Island of Hawaii, including within Kaloko-Honokohau National Historical Park (KAHO), and Puu o Honaunau National Historical Park (PUHO) between 2010 and 2013 in nearshore coral reef and anchialine pool settings. Temperature sensors were attached to fossil limestone, rock or dead coral within otherwise healthy coral reef settings spanning water depths of 0.1 to 8.84 m (0.3 to 29.0 ft). Continuous measurements were made every 10 or 20 minutes. Due to the large amount of data, the dataset has been split into three files. WaterTempTimeSeries_KAHO-KC.csv includes data from nearshore coral reef locations within Kaloko Bay,... Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Freeze Face, Hawaii, Honaunau Bay, All tags... Honokohau Small Boat Harbor, Island of Hawaii, Kailua Pier, Kailua-Kona, Kaloko Cut, Kaloko-Honokohau National Historical Park, Keawaiki, Kona, PCMSC, Pacific Coastal and Marine Science Center, Puuhonua O Honanaunau National Historical Park, State of Hawaii, U.S. Geological Survey, USGS, assessments, corals, distributions, diving, habitat, health and disease, oceans, reef ecosystems, sampling, water temperature, Fewer tags Digital Elevation Model of Oxbow Reservoir, Placer County, California, October 2022 This portion of the data release presents a digital elevation model (DEM) of portions of Oxbow Reservoir in Placer County, California. The DEM was created using topographic survey data collected on 26 October 2022, when the reservoir was partially de-watered to allow repairs to the dam infrastructure following the Mosquito Fire. Although the gates of the dam were open during this time, significant portions of the reservoir site remained inaccessible to surveyors due to the continued flow of the Middle Fork American River. Consequently, this DEM covers approximately 50 percent of the total surface area of the reservoir at full pool. The raw topographic data for the DEM were collected using two RTK GNSS backpack rovers... Categories: Data; Tags: Alabama Bar, Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Middle Fork American River, All tags... Oxbow Bar, Oxbow Reservoir, PCMSC, Pacific Coastal and Marine Science Center, Placer County, Rubicon River, State of California, U.S. Geological Survey, USGS, elevation, geomorphology, geoscientificInformation, geospatial datasets, topographic mapping, topographic maps, topography, Fewer tags Eelgrass distributions and bathymetry derived from an acoustic survey of the Nisqually River delta, Washington, 2014 This portion of the USGS data release presents eelgrass distribution and bathymetry data derived from acoustic surveys of the Nisqually River delta, Washington in 2014 (USGS Field Activity Number D-01-14-PS). Eelgrass and bathymetry data were collected from the R/V George Davidson equipped with a single-beam sonar system and global navigation satellite system (GNSS) receiver. The sonar system consisted of a Biosonics DT-X single-beam echosounder and 420 kHz transducer with a 6-degree beam angle. Depths from the echosounder were computed using sound velocity data measured using a YSI CastAway CTD during the survey. Positioning of the survey vessel was determined at 5 to 10 Hz using a Trimble R7 GNSS receiver and... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, Billy Frank Jr Nisqually National Wildlife Refuge, CMHRP, Coastal and Marine Hazards and Resources Program, Echo Sounders, All tags... GPS (Global Positioning System), GPS measurement, Global Positioning System (GPS) observations, Nisqually River, PCMSC, Pacific Coastal and Marine Science Center, Pierce County, Puget Sound, Salish Sea, Thurston County, U.S. Geological Survey, USGS, USGS Coastal Habitats in Puget Sound Project (CHIPS), Water Depth, aquatic vegetation, bathymetry, bathymetry measurement, elevation, marine geophysics, sea-floor characteristics, single-beam echo sounder, Fewer tags Ground control point locations for the UAS survey of the coral reef off Waiakane, Molokai, Hawaii, 24 June 2018 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 an unoccupied aerial system (UAS) survey of the coral reef off Waiakane, Molokai, Hawaii, on 24 June 2018. Twenty temporary ground control points (GCPs) were distributed throughout the survey area to establish survey control. The GCPs consisted of: nine submerged targets consisting of small (80 centimeter X 80 centimeter) square tarps with black-and-white cross patterns anchored to the shallow (less than 1.5 meters deep) seafloor using 0.9 kilogram fishing weights; nine sub-aerial targets consisting of orange plastic five-gallon... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Kalohi Channel, Maui County, All tags... Molokai, PCMSC, Pacific Coastal and Marine Science Center, SfM, State of Hawaii, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, Waiakane, aerial and satellite photography, aerial photography, altimetry, coastal processes, coral reefs, fringing reef, geomorphology, geospatial datasets, image mosaics, imageryBaseMapsEarthCover, orthophotography, photography, reef, remote sensing, remote sensing, structure from motion, topographic maps, topography, Fewer tags BathymetryB [CSUMB]--Offshore Aptos, California This part of DS 781 presents data for the bathymetry map of Offshore of Aptos map area, California. Bathymetry data are provided as two separate grids depending on mapping agency and processing method. This metadata file refers to the data included in "BathymetryB_CSUMB_OffshoreAptos.zip" which are 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 State Waters... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Aptos, CMHRP, Coastal and Marine Hazards and Resources Program, Continental/Island Shelf, Fisheries, All tags... Marine Nearshore Subtidal, Marine Offshore Subtidal, Northern California Ecoregion, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Rock Substrate, Santa Cruz County, Seafloor Topography, State of California, Transform Continental Margin, U.S. Geological Survey, USGS, 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 Aerial imagery from UAS surveys of beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA, July 2021 This portion of the data release presents the raw aerial imagery collected during the uncrewed aerial system (UAS) survey conducted on the ocean beaches adjacent to the Columbia River Mouth at the Oregon-Washington border in July 2021. The imagery was acquired using a Department of Interior-owned 3DR Solo quadcopter fitted with a Ricoh GR II digital camera featuring a global shutter. The camera was mounted using a fixed mount on the bottom of the UAS and oriented in an approximately nadir orientation. The Fort Stevens State Park survey was conducted under Oregon Parks and Recreation Department Scientific Research Permit #235. Ten flights were conducted at Fort Stevens State Park on 22 July 2021, between 14:00 and... 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 Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington, July 2017 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: Clallam County, Elwha River, Geomorphology, Olympic Peninsula, PCMSC, All tags... Strait of Juan de Fuca, data release, Fewer tags Reprocessed multichannel seismic-reflection (MCS) data from USGS field activity T-1-96-SC collected in San Diego Bay, California in 1996 This data release presents reprocessed multichannel seismic-reflection (MCS) data that was originally collected in 1996 in partnership with the California Division of Mines and Geology and Caltrans as part of a seismic hazard assessment of the Coronado Bridge in San Diego Bay, California. The original survey collected 130 km of data with a 14-cubic inch sleeve-gun (airgun) source, a 24-channel streamer, and 3.125 m shot spacing. Reprocessed profiles show increased data resolution, with data recorded to 750 ms two-way-travel-time, and interpretable data down to about 400 m. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Distributions, Geophysics, Marine Geology, All tags... None, PCMSC, Pacific Coastal and Marine Science Center, San Diego Bay, San Diego Bay, State of California, Stratigraphy, Structural Geology, Substrate, U.S. Geological Survey, USGS, acoustic methods, geophysics, geoscientificinformation, geospatial datasets, mapping, marine geophysics, oceans, seabed, seismic reflection profiling, sub-bottom profiling, Fewer tags CoSMoS 3.2 Northern California sub-regional tier 2 FLOW-WAVE model input files This dataset consists of physics-based Delft3D-FLOW and WAVE hydrodynamic models input files used for Coastal Storm Modeling System (CoSMoS) tier 2 simulations. These sub-regional simulations cover portions of the Northern California open-coast region; boundary conditions are derived from regional Tier 1 simulations. These Simulations are run for several storm events (covering a range of no storm, 1-year, 20-year, and 100-year coastal storm conditions) and sea-level rise (SLR) scenarios. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beaches, CMHRP, Climate Change, Climatology, ClimatologyMeteorologyAtmosphere, All tags... Coastal and Marine Hazards and Resources, Earth sciences, Hazards Planning, Northern California, Ocean Winds, PCMSC, Pacific Coastal and Marine Science Center, State of California, USGS, climate-change effects, coastal erosion, erosion, extreme weather, mathematical modeling, numerical modeling, ocean waves, sea-level change, sea-level rise, storm surge, storms, waves, winds, Fewer tags Turbidity data from the Carmel River, central California, 2014 to 2017 This data provides river turbidity measurements collected on the Carmel River, CA. Turbidity was measured to study any changes in the Carmel River’s sediment loads following the removal of the San Clemente Dam. The USGS-run DTS-12 turbidity sensor was deployed above the Sleepy Hollow Weir on the Carmel River, CA (instrument was located at 36.445250 degrees North, 121.710494 degrees West). Deployment began on December 9, 2014. After June 16, 2016, the instrument was removed for calibration. A new instrument was re-deployed on October 14, 2016, and continued to record until recovery on July 13, 2017. Due to the instrument removal and calibration, there exists an approximately 4-month long gap in data collection from... Categories: Data; Tags: CMGP, Carmel River, Carmel Valley, Coastal and Marine Geology Program, Monterey County, All tags... PCMSC, Pacific Coastal and Marine Science Center, San Clemente Dam, U.S. Geological Survey, USGS, Water-Quality Parameters, field inventory and monitoring, inland fishery resources, inlandWaters, river reaches, river systems, sediment transport, sediment transport, Fewer tags Radiocarbon measurements from core 721-1 obtained in 2002 off San Francisquito Creek in South San Francisco Bay This data release provides radiocarbon measurements from a core obtained off San Francisquito Creek in South San Francisco Bay. Categories: Data; Tags: CMHRP, Coastal and Marine Hazards and Resources Program, Hooks Point, PCMSC, Pacific Coastal and Marine Science Center, All tags... San Francisco Bay, San Francisquito Creek, Substrate, U.S. Geological Survey, USGS, bay, carbon-14 analysis, chemical analysis, environment, geochemistry, geoscientificInformation, gravity coring, marine chemistry, mass spectroscopy, radiometric dating, sediment deposition, sediment geochemistry, society, Fewer tags Minisparker seismic-reflection data of field activity F-02-07-NC collected offshore San Mateo County, California, from 2007-03-22 to 2007-04-06 High-resolution single-channel minisparker seismic-reflection data were collected by the U.S. Geological Survey in March and April 2007 from San Francisco to San Gregorio, offshore San Mateo County, California. Data were collected aboard the R/V Fulmar, during field activity F-02-07-NC. Minisparker data were collected using a SIG 2-mille minisparker sound source combined with a single-channel streamer, and recorded with a Triton SB-Logger. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry and Elevation, CMHRP, Coastal and Marine Hazards and Resources Program, Elevation, North Pacific Ocean, All tags... Oceans, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, San Francisco, San Gregorio, San Mateo County, State of California, U.S. Geological Survey, USGS, geoscientificinformation, geospatial datasets, marine geophysics, seismic reflection profiling, sub-bottom profiling, Fewer tags Digital Shoreline Analysis System (DSAS) version 4.4 transects with short-term linear regression rate calculations for the exposed north coast of Alaska, from Icy Cape to Cape Prince of Wales This dataset consists of short-term (less than 37 years) shoreline change rates for the north coast of Alaska from Icy Cape to Cape Prince of Wales. Rate calculations were computed within a GIS using the Digital Shoreline Analysis System (DSAS) version 4.4, an ArcGIS extension developed by the U.S. Geological Survey. Rates of shoreline change were calculated using a linear regression rate-of-change (lrr) method based on available shoreline data between 1980s and 2016. 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 rates of change. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arctic, Bering Land Bridge National Preserve, CMHRP, Cape Espenberg, Cape Krusenstern National Monument, All tags... Cape Lisburne, Cape Prince of Wales, Cape Thompson, Chukchi Sea, Coastal and Marine Hazards and Resources Program, DSAS, Deering, Digital Shoreline Analysis System, Distributions, Icy Cape, Kivalina, Kotzebue Sound, North Slope, PCMSC, Pacific Coastal and Marine Science Center, Physical/Chemical Features, Point Hope, Point Lay, Red Dog Dock, Shishhmaref, Shoreline, Shoreline Change, U.S. Geological Survey, USGS, Wales, coastal processes, environment, geoscientificInformation, oceans, shoreline accretion, shoreline erosion, Fewer tags « 1 ... 8 9 10 11 12