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Summary of analytical data for sediment cores from the New England Mud Patch collected on USGS Field Activity 2016-001-FA Variability in sediment properties with depth and the thickness of individual sedimentary layers are critical determinants of seabed acoustic response. The New England Mud Patch (NEMP), located south of Cape Cod, is an unusual feature on the U.S. Continental Shelf in that it is composed of fine-grained sediment layers containing a relatively-homogeneous mix of sand, silt, and clay-sized particles bounded by more typical sandy shelf sediments. The unique characteristics and nature of this deposit is due to a derivation of sediments that have been transported to, and deposited in, a basal bowl-shaped depression since the last glacial maximum. Ninety-two piston, vibra-, and gravity cores with a maximum length of 8.2... Categories: Data; Tags: Atlantic, Cruise ID EN577, Holocene, Martha's Vineyard, Massachusetts, All tags... NEMP, New England Mud Patch, R/V Endeavor, Seabed Experiment Area, U.S. Continental Shelf, U.S. Geological Survey, USGS, WHCMSC, WHSC Field Activity 2016-001-FA, Woods Hole Coastal and Marine Science Center, acoustic cores, bulk density, calcium carbonate, clay deposits, core analysis, cores, earth material properties, geology, geophysical properties, grain density, grain porosity, grain size, gravity coring, oceans, organic carbon, piston cores, piston coring, porosity, sand deposits, sediment samples, sedimentology, soil moisture, trigger cores, unconsolidated deposits, vibracores, vibracoring, Fewer tags Multibeam bathymetric data collected in the eastern Gulf of Alaska during USGS Field Activity 2016-625-FA using a Reson 7160 multibeam echosounder (10 meter resolution, 32-bit GeoTIFF, UTM 8 WGS 84, WGS 84 Ellipsoid) Marine geophysical mapping of the Queen Charlotte Fault in the eastern Gulf of Alaska was conducted in 2016 as part of a collaborative effort between the U.S. Geological Survey and the Alaska Department of Fish and Game to understand the morphology and subsurface geology of the entire Queen Charlotte system. The Queen Charlotte fault is the offshore portion of the Queen Charlotte-Fairweather Fault: a major structural feature that extends more than 1,200 kilometers from the Fairweather Range of southern Alaska to northern Vancouver Island, Canada. The data published in this data release were collected along the Queen Charlotte Fault between Cross Sound and Noyes Canyon, offshore southeastern Alaska from May 18 to... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: ADFG, Alaska Department of Fish and Game, Baranof Fan, Baranof Island, CMHRP, All tags... Chatham Strait, Chichagof Island, Coastal and Marine Hazards and Resources Program, Cross Sound, Elevation, GeoscientificInformation, Gulf of Alaska, Heceta Knoll, Icy Point, North Pacific Ocean, Noyes Canyon, Oceans, Pacific Coastal and Marine Science Center, Pacific Ocean, Queen Charlotte Fault, R/V Medeia, Reson 7160, TerraSond, U.S. Geological Survey, USGS, United States of America, Woods Hole Coastal and Marine Science Center, Yakobi Sea Valley, bathymetry, depth, elevation, multibeam, seafloor, Fewer tags WA Short Term Shoreline Change Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. To meet these national needs, the Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is compiling existing reliable historical shoreline data along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii under the National Assessment of Shoreline Change project.There is no widely accepted standard for analyzing shoreline... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Accretion, CMGP, Coastal and Marine Geology Program, Columbia River, DSAS, All tags... Digital Shoreline Analysis System, End Point Rate, Erosion, Historic Shoreline, National Assessment of Shoreline Change Project, North America, Pacific Coast, Pacific Northwest, Shoreline, Short-Term Shoreline Change Rate, Transect, U.S. Geological Survey, USGS, United States, WHCMSC, Washington, Willapa Bay, Woods Hole Coastal and Marine Science Center, environment, geoscientificInformation, oceans, oceans and coastal, oceans and estuaries, Fewer tags Multi-sensor core logger (MSCL) data of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA Twenty-four piston cores (and associated trigger cores) were collected from the source zone of the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon by the U.S. Geological Survey and the University of Rhode Island Department of Ocean Engineering during an eight-day cruise aboard the R/V Hugh R. Sharp in September/October of 2012. These cores were analyzed for evidence of seafloor mass transport processes, with an emphasis on constraining the age and shallow stratigraphy of the landslide complex. Sedimentological and geotechnical characterization of the cores was carried out through whole core imaging and description, followed by analysis of discrete samples at the USGS Woods Hole Coastal and... Categories: Data; Tags: Atlantic, Baltimore Canyon, Cruise ID HRS1209, Currituck Landslide, Holocene, All tags... Hugh R. Sharp, Maryland, North Carolina, U.S. Continental Shelf, U.S. Geological Survey, USGS, Virginia, WHCMSC, WHCMSC Field Activity 2012-007-FA, Woods Hole Coastal and Marine Science Center, clay deposits, core analysis, cores, earth material properties, gamma density, geology, geoscientificInformation, multi-sensor core logger, oceans, p-wave amplitude, p-wave velocity, piston cores, piston coring, sand deposits, sediment samples, sedimentology, trigger cores, unconsolidated deposits, Fewer tags Peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, based on data through water year 2018, Part 1 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, Land, Milk River, Milk River Basin, Montana, All tags... North America, USGS Science Data Catalog (SDC), USGS-CC Natural Hazards, United States, Water Resources, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags High-resolution magnetic susceptibility of sediment cores from the New England collected on USGS Field Activity 2016-001-FA Variability in sediment properties with depth and the thickness of individual sedimentary layers are critical determinants of seabed acoustic response. The New England Mud Patch (NEMP), located south of Cape Cod, is an unusual feature on the U.S. Continental Shelf in that it is composed of fine-grained sediment layers containing a relatively-homogeneous mix of sand, silt, and clay-sized particles bounded by more typical sandy shelf sediments. The unique characteristics and nature of this deposit is due to a derivation of sediments that have been transported to, and deposited in, a basal bowl-shaped depression since the last glacial maximum. Ninety-two piston, vibra-, and gravity cores with a maximum length of 8.2... Categories: Data; Tags: Atlantic, Bartington MS2E, Bartington MS3, Cruise ID EN577, Holocene, All tags... Martha's Vineyard, Massachusetts, NEMP, New England Mud Patch, R/V Endeavor, Seabed Experiment Area, U.S. Continental Shelf, U.S. Geological Survey, USGS, WHCMSC, WHCMSC Field Activity 2016-001-FA, Woods Hole Coastal and Marine Science Center, acoustic cores, clay deposits, core analysis, cores, earth material properties, geology, gravity coring, magnetic susceptibility, magnetic susceptibility, magnetism, oceans, piston cores, piston coring, sand deposits, sediment samples, sedimentology, trigger cores, unconsolidated deposits, vibracores, Fewer tags Results of peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, Montana, based on data through water year 2022 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected USGS streamgages. This data release presents peak-flow frequency analyses for selected streamgages in Dawson and Richland Counties, and the Powder River Basin, based on data through water year 2022, using methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Charlie-Little Muddy, Custer County, Dawson County, Land, Little Powder, All tags... Lower Powder, Lower Yellowstone, Middle Powder, Montana, North America, Powder River County, Redwater, Richland County, USGS-CC Natural Hazards, United States, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Multibeam backscatter data collected in the eastern Gulf of Alaska during USGS Field Activity 2016-625-FA using a Reson 7160 multibeam echosounder (10 meter resolution, 8-bit GeoTIFF, UTM 8 WGS 84, WGS 84 Ellipsoid) Marine geophysical mapping of the Queen Charlotte Fault in the eastern Gulf of Alaska was conducted in 2016 as part of a collaborative effort between the U.S. Geological Survey and the Alaska Department of Fish and Game to understand the morphology and subsurface geology of the entire Queen Charlotte system. The Queen Charlotte fault is the offshore portion of the Queen Charlotte-Fairweather Fault: a major structural feature that extends more than 1,200 kilometers from the Fairweather Range of southern Alaska to northern Vancouver Island, Canada. The data published in this data release were collected along the Queen Charlotte Fault between Cross Sound and Noyes Canyon, offshore southeastern Alaska from May 18 to... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: ADFG, Alaska Department of Fish and Game, Baranof Fan, Baranof Island, CMHRP, All tags... Chatham Strait, Chichagof Island, Coastal and Marine Hazards and Resources Program, Cross Sound, GeoTIFF, GeoscientificInformation, Gulf of Alaska, Heceta Knoll, Icy Point, ImageryBaseMapsEarthCover, North Pacific Ocean, Noyes Canyon, Oceans, Pacific Coastal and Marine Science Center, Pacific Ocean, Queen Charlotte Fault, R/V Medeia, Reson 7160, TerraSond, U.S. Geological Survey, USGS, United States of America, Woods Hole Coastal and Marine Science Center, Yakobi Sea Valley, backscatter, multibeam, seafloor, time-series, Fewer tags Peak-flow frequency analyses for selected streamgages in and near Powell County, Montana, based on data through water year 2019 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in and near Powell County, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Blackfoot, Land, Montana, North America, Powell County, All tags... USGS-CC Natural Hazards, United States, Upper Clark Fork, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Oregon OCS backscatter This Data Release contains data from the U.S. Geological Survey (USGS) survey of the Oregon outer Continental shelf (OCS) Floating Wind Farm Site in 2014.The backscatter intensity data was collected along with bathymetry data by USGS during the period from August 20 to September 1, 2014, using a Reson 7111 multibeam echosounder. The mapping mission collected bathymetry data from about 163 m to 566 m depths on the Oregon outer continental shelf. The acquisition was funded by the U.S. Bureau of Ocean Energy Management.Within the final imagery, brighter tones indicate higher backscatter intensity, and darker tones indicate lower backscatter intensity. The intensity represents a complex interaction between the acoustic... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Backscatter, Bathymetry, CSMP, Coos Bay, Geology, All tags... Intensity, Marine Geology, Multibeam, Ocean Floor Topography, Oceans > OceanAcoustics > Acoustic Reflectivity, PCMSC, Pacific Coastal and Marine Science Center, State of Oregon, U.S. Geological Survey, USGS, data release, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Wind-wave and suspended-sediment data from Liberty Island and Little Holland Tract, Sacramento-San Joaquin Delta, California (ver. 2.0, September 2019) Data were collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center to investigate the influence of wind waves on sediment dynamics in two flooded agricultural tracts in the northern Sacramento-San Joaquin Delta: Little Holland Tract and Liberty Island. This effort is part of a large interdisciplinary study led by the USGS California Water Science Center and funded by the U.S. Bureau of Reclamation to investigate how shallow-water habitats in the Sacramento-San Joaquin Delta function and whether they provide good habitat for native fish species, including the Delta smelt. Elevated turbidity is a requirement for Delta smelt habitat, and turbidity is largely comprised of suspended sediment.... Categories: Data, Data Release - Revised; Types: Citation; Tags: Average Burst Pressure, CMG, CMGP, CONDUCTIVITY, CTD > CONDUCTIVITY, TEMPERATURE, DEPTH, All tags... CTD measurements, CURRENT METERS, Cache Slough Complex, California, Coastal and Marine Geology Program, Current Direction (t), Current Speed, Geophysics, Liberty Island, Little Holland Tract, PCMSC, PRESSURE SENSORS, Pacific Coastal and Marine Science Center, SALINITY, SEDIMENT TRANSPORT, Sacramento-San Joaquin Delta, Salinity, Shallow water habitat, Solano County, Stand. Dev. (press), Suspended-sediment concentration, TIDAL CURRENTS, TIDAL STAGE, TURBIDITY, Temperature (c), Tidal fresh water, Tidal shallows, U.S. Geological Survey, USGS, Vertical Velocity, WATER DEPTH, WATER PRESSURE, WATER TEMPERATURE, WAVE HEIGHT, WAVE HEIGHT GAUGES, WAVE SPEED DIRECTION, Wave Height Period, Wind Waves, Yolo County, data release, inlandWaters, marine water quality, ocean waves, time series dataset, Fewer tags Peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, based on data through water year 2018, Part 1 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in and near the Milk River Basin, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Tags: Land, Lower Milk, Middle Milk, Milk, Milk Headwaters, All tags... Montana, North America, USGS-CC Natural Hazards, United States, Upper Milk, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Water content analyses of sediment cores from the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon collected on USGS Field Activity 2012-007-FA Twenty-four piston cores (and associated trigger cores) were collected from the source zone of the Currituck Landslide Complex and upper slope adjacent to Baltimore Canyon by the U.S. Geological Survey and the University of Rhode Island Department of Ocean Engineering during an eight-day cruise aboard the R/V Hugh R. Sharp in September/October of 2012. These cores were analyzed for evidence of seafloor mass transport processes, with an emphasis on constraining the age and shallow stratigraphy of the landslide complex. Sedimentological and geotechnical characterization of the cores was carried out through whole core imaging and description, followed by analysis of discrete samples at the USGS Woods Hole Coastal and... Categories: Data; Tags: Atlantic, Baltimore Canyon, Cruise ID HRS1209, Currituck Landslide, Holocene, All tags... Hugh R. Sharp, Maryland, North Carolina, U.S. Continental Shelf, U.S. Geological Survey, USGS, Virginia, WHCMSC, WHCMSC Field Activity 2012-007-FA, Woods Hole Coastal and Marine Science Center, bulk density, clay deposits, core analysis, cores, dry bulk density, earth material properties, geology, geoscientificInformation, geotechnical analysis, grain density, moisture and density, oceans, piston cores, piston coring, porosity, pycnometer, sand deposits, sediment samples, sedimentology, soil moisture, trigger cores, unconsolidated deposits, water content, Fewer tags Results of peak-flow frequency analyses for selected streamgages in the Upper Yellowstone River Basin, based on data through water year 2022 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected USGS streamgages. This data release presents peak-flow frequency analyses for selected streamgages in the Upper Yellowstone River Basin, based on data through water year 2022, using methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Carbon County, MT, Clarks Fork Yellowstone, Land, Montana, North America, All tags... Park County, MT, Park County, WY, Shields, Stillwater, Stillwater County, MT, Sweetgrass County, MT, USGS-CC Natural Hazards, United States, Upper Yellowstone, Upper Yellowstone-Lake Basin, Wyoming, Yellowstone Headwaters, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Hydrologic, slope movement, and soil property data from the coastal bluffs of the Atlantic Highlands, New Jersey, 2016-2018 Seasonal variations in vegetation, rainfall, and soil moisture conditions have the potential to impact the slope stability of locally forested coastal bluffs in the Atlantic Highlands of New Jersey. Both the seasonality and rainfall amounts of the two types of storms that induce shallow landslides in the area vary considerably. Most of the documented historical landslides are the result of heavy rainfall caused by late summer-fall tropical cyclones. The majority of the remaining documented landslides are related to spring nor’easters and total storm rainfall amounts for these storms are generally lower than the rainfall amounts for the tropical cyclones. In order to assess how conditions that may affect the potential... Categories: Data; Tags: Borough of Atlantic Highlands, Borough of Highlands, Geomorphology, Hydrology, New Jersey, All tags... USGS Science Data Catalog (SDC), canopy interception, groundwater level, hazards, hydrologic response, landslide initiation, monitoring, rainfall, shallow landslide, soil moisture, Fewer tags Peak-flow frequency analyses for selected streamgages in and near Teton County, Montana, based on data through water year 2019 The USGS Wyoming-Montana Water Science Center (WY–MT WSC) completed a report (Sando and McCarthy, 2018) documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 66.7-, 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WY–MT WSC. This data release presents peak-flow frequency analyses for selected streamgages in and near Teton County, Montana, that were based on methods described by Sando and McCarthy (2018). Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Land, Montana, North America, Teton County, USGS-CC Natural Hazards, All tags... United States, annual exceedance probability, computational methods, floods, hazard preparedness, hazards, hydrologic processes, hydrology, inlandWaters, peak-flow frequency, statistical analysis, stream-gage measurement, streamflow, streamflow, time series analysis, watershed management, Fewer tags Oregon OCS bathymetry This data release contains data from the USGS survey of the Oregon OCS Floating Wind Farm Site in 2014.The bathymetry and shaded-relief rasters were generated from bathymetry data collected by USGS during the period from August 20 to September 1, 2014. using a Reson 7111 multibeam echosounder. The mapping mission collected bathymetry data from about 163 m to 566 m depths on the Oregon outer continental shelf. The acquisition was funded by the U.S. Bureau of Ocean Energy Management. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: BOEM, Bathymetry, Bathymetry and Elevation, Bureau of Ocean Energy Management, Coos Bay, All tags... Geology, Marine Geology, Multibeam, Ocean Floor Topography, Oceans > Bathymetry/SeafloorTopography > Bathymetry, Oceans > Bathymetry/SeafloorTopography > Seafloor Topography, Pacific Coastal and Marine Science Center, State of Oregon, U.S. Geological Survey, USGS, Water Depth, bathymetry, geoscientificInformation, imageryBaseMapsEarthCover, multibeam sonar, oceans, Fewer tags 10 meter contours Santa Barbara Channel Geohab This data release contains GIS data generated by USGS for use in a BOEM-funded project to compare natural rockfish nursery habitat to habitat created by manmade structures in the eastern Santa Barbara Channel. The contours were created from published data and digital elevation models (DEMs) of Carignan and others (2009) and Dartnell and others (2012). Contours were generated using the ESRI Contour tool in spatial analysit. The contour interval is 10 meters. The contours were clipped to exclude areas outside the BOEM rockfish nurseries study area. Dartnell, P., Finlayson, D.P., Ritchie, A.C., Cochrane, G.R., and Erdey, M.D., 2012, Bathymetry and acoustic backscatter-outer mainland shelf, eastern Santa Barbara Channel,... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: BOEM, Bathymetry, Bathymetry and Elevation, CMGP, Multibeam, All tags... Ocean Floor Topography, Oceans > Bathymetry/SeafloorTopography > Bathymetry, Oceans > Bathymetry/SeafloorTopography > Seafloor Topography, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara Channel, State of California, U.S. Geological Survey, USGS, bathymetry, data release, elevation, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Oregon OCS hillshade This data release contains data from the USGS survey of the Oregon OCS Floating Wind Farm Site in 2014.The shaded-relief raster was generated from bathymetry data collected by USGS during the period from August 20 to September 1, 2014. using a Reson 7111 multibeam echosounder. The mapping mission collected bathymetry data from about 163 m to 566 m depths on the Oregon outer continental shelf. The acquisition was funded by the U.S. Bureau of Ocean Energy Management. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: BOEM, Bathymetry, Bathymetry and Elevation, Bureau of Ocean Energy Management, Coos Bay, All tags... Marine Geology, Multibeam, Ocean Floor Topography, Oceans > Bathymetry/SeafloorTopography > Bathymetry, Oceans > Bathymetry/SeafloorTopography > Seafloor Topography, Pacific Coastal and Marine Science Center, State of Oregon, U.S. Geological Survey, USGS, bathymetry, geoscientificInformation, imageryBaseMapsEarthCover, multibeam sonar, oceans, Fewer tags Chirp seismic-reflection data: San Pablo Bay, California This data release includes chirp seismic-reflection data collected in 2014 aboard the USGS R/V Snavely in San Pablo Bay, part of northern San Francisco Bay. These data were acquired to image the shallow geologic structure, particularly that related to the Hayward and Rodgers Creek Faults. Approximately 200 km of marine seismic-reflection data were collected along primarily northeast and northwest-trending profiles spaced 1-km apart using an Edgetech 512 chirp sub-bottom profiler that was towed alongside the vessel on a sled at the sea surface. Data were acquired using a 2-12 kHz sweep with a 20 ms length fired 6 times per second. Initial processing included subsampling at twice the sample interval to make swell... Categories: Data; Types: Citation, Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry, Continental Margins, Contra Costa County, Mare Island, Marin County, All tags... PCMSC, Pacific Coastal and Marine Science Center, Pinole, Pinole Point, San Francisco Bay, San Pablo Bay, Sears Point, Solano County, Sonoma County, State of California, Tubbs Island, U.S. Geological Survey, USGS, Vallejo, data release, geoscientificInformation, oceans, seismic-reflection, Fewer tags 1 2 3 »