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Bathymetric change analyses of the southernmost portion of the Mokelumne River, California, from 1934 to 2018 Bathymetric change grids covering the periods of time from 1934 to 2011, from 2011 to 2018, and from 1934 to 2018 are presented. The grids cover a portion of the Mokelumne River, California, starting at its terminus at the San Joaquin River and moving upriver to the confluences of the north and south branches of the Mokelumne. Positive grid values indicate accretion, or a shallowing of the surface bathymetric surface, and negative grid values indicate erosion, or a deepening of the bathymetric surface. Bathymetry data sources include the U.S. Geological Survey, California Department of Water Resources, and NOAA's National Ocean Service. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Andrus Island, Bathymetry and Elevation, Bouldin Island, CMHRP, California, All tags... Coastal and Marine Hazards and Resources Program, Georgiana Slough, Inlandwaters, Mokelumne River, PCMSC, Pacific Coastal and Marine Science Center, River Channel, Sacramento County, San Joaquin County, San Joaquin River, U.S. Geological Survey, USGS, bathymetry, erosion, estuarine processes, geospatial datasets, sediment transport, sedimentation, Fewer tags Bathymetric change analyses of the Sacramento River near Rio Vista, California, and the junction of Cache and Steamboat sloughs, from 1992 to 2004 Bathymetric change grids covering the periods of time from 1992 to 1998 and from 1994 to 2004 are presented. The grids cover a portion of the Sacramento River near Rio Vista, California, extending partially upstream on Cache and Steamboat sloughs by the Ryer Island Ferry, as well as continuing up the Sacramento River towards Isleton. Positive grid values indicate accretion, or a shallowing of the surface bathymetric surface, and negative grid values indicate erosion, or a deepening of the bathymetric surface. Bathymetry data sources include the U.S. Army Corps of Engineers, California Department of Water Resources, and NOAA�s National Ocean Service. Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Bathymetry and Elevation, Brannan Island, CMHRP, Cache Slough, California, All tags... Coastal and Marine Hazards and Resources Program, Inlandwaters, PCMSC, Pacific Coastal and Marine Science Center, Rio Vista, River Channel, Ryer Island, Sacramento County, Sacramento River, San Joaquin River, Steamboat Slough, U.S. Geological Survey, USGS, bathymetry, erosion, estuarine processes, geospatial datasets, sediment transport, sedimentation, Fewer tags 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 Digital elevation model (DEM) of south San Francisco Bay, California, created using bathymetry data collected between 2005 and 2020 (MLLW) A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the southern portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface.... Tags: Alviso Slough, Bathymetry and Elevation, Coyote Creek, Digital Elevation Model (DEM) 1 meter, Dumbarton Bridge, All tags... GPS measurement, Global Positioning System (GPS) observations, San Francisco Bay, San Mateo Bridge, bathymetry, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, multibeam echo sounder, multibeam sonar, single-beam echo sounder, single-beam echo sounder, topographic mapping, topography, Fewer tags Digital elevation model (DEM) of northern San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (MLLW) A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the northern portion of San Francisco Bay, which includes San Pablo Bay, Carquinez Strait, and portions of Suisun Bay, was constructed from bathymetric surveys collected from 1999 to 2016. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide.... Tags: Bathymetry and Elevation, Carquinez Strait, Digital Elevation Model (DEM) 1 meter, GPS measurement, Global Positioning System (GPS) observations, All tags... Lidar Point Cloud (LPC), San Francisco Bay, San Pablo Bay, Suisun Bay, bathymetry, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, lidar, multibeam echo sounder, multibeam sonar, single-beam echo sounder, single-beam echo sounder, topographic mapping, topography, Fewer tags Footprints and producers of source data used to create southern portion of the high-resolution (1 m) San Francisco Bay, California, digital elevation model (DEM) Polygon shapefile showing the footprint boundaries, source agency origins, and resolutions of compiled bathymetric digital elevation models (DEMs) used to construct a continuous, high-resolution DEM of the southern portion of San Francisco Bay. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Alviso Slough, Bathymetry and Elevation, CMHRP, Coastal and Marine Hazards and Resources Program, Coyote Creek, All tags... Digital Elevation Model (DEM) 1 meter, Dumbarton Bridge, PCMSC, Pacific Coastal and Marine Science Center, San Francisco Bay, San Mateo Bridge, U.S. Geological Survey, USGS, digital elevation models, elevation, geographic information systems, geospatial datasets, multibeam echo sounder, single-beam echo sounder, Fewer tags Topography data collected in the Liberty Island Conservation Bank portion of the Cache Slough Complex, Sacramento-San Joaquin Delta, California, during USGS field activity 2017-649-FA This portion of the USGS data release presents topography data acquired in the Liberty Island Conservation Wildlands restoration site in 2017 (USGS Field Activity Number 2017-649-FA). Topographic data were collected on June 26 and 27, 2017 by walking with global navigation satellite system (GNSS) receivers mounted on backpacks. Hand-held data collectors were used to log raw data and display navigational information as the surveyors traversed the landscape. The final point data are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Cache Slough, Cache Slough Complex, Coastal and Marine Hazards and Resources Program, All tags... Liberty Island, PCMSC, Pacific Coastal and Marine Science Center, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Joaquin River, State of California, U.S. Geological Survey, USGS, altimetry, elevation, geoscientificInformation, geospatial datasets, topography, Fewer tags Pilot study on bathymetric change analyses in the Sacramento-San Joaquin Delta, California The bathymetry of the Sacramento-San Joaquin Delta affects the flow of water and sediment throughout the system and is a basic control on levee stability, habitat distribution, and water quality. Delta bathymetry is dynamic, responding to both natural forces and human activities. Assessment of future Delta conditions is aided by understanding how its bathymetry has changed in the past. This pilot study explores historic bathymetric change in the Delta. The earliest comprehensive surveys that covered a large portion of the Delta were conducted in the 1930s by the U.S. Coast and Geodetic Survey, the precursor to the National Oceanic and Atmospheric Administration. These historic surveys are compared to recent surveys... Tags: Geomorphology, Hydrogeology Digital elevation model (DEM) of central San Francisco Bay, California, created using bathymetry data collected between 2009 and 2020 (NAVD88) A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the central portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface. The... Tags: Bathymetry and Elevation, Digital Elevation Model (DEM) 1 meter, GPS measurement, Global Positioning System (GPS) observations, Golden Gate, All tags... Lidar Point Cloud (LPC), Pacific Ocean, San Francisco Bay, bathymetry, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, multibeam echo sounder, multibeam sonar, single-beam echo sounder, single-beam echo sounder, topographic mapping, topography, Fewer tags Footprints and producers of source data used to create northern portion of the high-resolution (1 m) San Francisco Bay, California, digital elevation model (DEM) Polygon shapefile showing the footprint boundaries, source agency origins, and resolutions of compiled bathymetric digital elevation models (DEMs) used to construct a continuous, high-resolution DEM of the northern portion of San Francisco Bay. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Bathymetry and Elevation, CMHRP, Carquinez Strait, Coastal and Marine Hazards and Resources Program, Digital Elevation Model (DEM) 1 meter, All tags... PCMSC, Pacific Coastal and Marine Science Center, San Francisco Bay, San Pablo Bay, Suisun Bay, U.S. Geological Survey, USGS, digital elevation models, elevation, geographic information systems, geospatial datasets, lidar, multibeam echo sounder, single-beam echo sounder, Fewer tags Single-beam bathymetry data collected in the Cache Slough Complex, Sacramento-San Joaquin Delta, California, during USGS field activities 2017-649-FA and 2018-684-FA This portion of the USGS data release presents single beam bathymetry data collected during surveys performed in the Cache Slough Complex, Sacramento-San Joaquin Delta, California in 2017 and 2018 (USGS Field Activity Numbers 2017-649-FA and 2018-684-FA). Bathymetry data were collected using personal watercraft (PWCs) equipped with single-beam sonar systems and global navigation satellite system (GNSS) receivers. The final point data from the PWCs are provided in a comma-separated text file and are projected in cartesian coordinates using the Universal Transverse Mercator (UTM) Zone 10 North, meters coordinate system. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bathymetry and Elevation, CMHRP, Cache Slough, Cache Slough Complex, Coastal and Marine Hazards and Resources Program, All tags... Global Positioning System (GPS) observations, PCMSC, Pacific Coastal and Marine Science Center, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Joaquin River, State of California, U.S. Geological Survey, USGS, bathymetry, bathymetry measurement, elevation, geoscientificInformation, geospatial datasets, single-beam echo sounder, Fewer tags Prospective regions for marine minerals on the Alaska Outer Continental Shelf This shapefile is of prospective regional outlines of where marine minerals may occur on the Alaska Outer Continental Shelf (OCS). Polygons were hand digitized based on a U.S. Geological Survey (USGS) data review that considers the state of knowledge regarding marine mineral occurrences within the Alaska OCS. This data release is a companion to the USGS Professional Paper, Gartman and others, 2022. Reference Gartman, A., Mizell, K., and Kreiner, D.C., 2022, Marine minerals in Alaska — A review of coastal and deep-ocean regions: U.S. Geological Survey Professional Paper 1870, 46 p., https://doi.org/10.3133/pp1870. Categories: Data; Tags: Alaska Plain, Aleutian Islands, Assessments, Bering Sea, CMHRP, All tags... Chukchi Borderland, Chukchi Plain, Chukchi Plateau, Chukchi Rise, Chukchi Sea, Chukchi Shelf, Coastal and Marine Hazards and Resources Program, East Siberian Shelf, Economic Geology, Geochemistry, Geomorphology, Gulf of Alaska, Gulf of Alaska Seamount Province, Kodiak Seamounts, Marine Geology, Material Resources, Mineral Resources, Mineral Resources, Nonliving Resources, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Physical/Chemical Features, State of Alaska, U.S. Geological Survey, USGS, Unalaska Basin, chemical analysis, dredge sampling, earth sciences, geochemistry, geoscientific Information, marine geology, metallic mineral resources, mineral resources, oceans, sediment geochemistry, Fewer tags Digital elevation model (DEM) of northern San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (NAVD88) A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the northern portion of San Francisco Bay, which includes San Pablo Bay, Carquinez Strait, and portions of Suisun Bay, was constructed from bathymetric surveys collected from 1999 to 2016. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide.... Tags: Bathymetry and Elevation, Carquinez Strait, Digital Elevation Model (DEM) 1 meter, GPS measurement, Global Positioning System (GPS) observations, All tags... Lidar Point Cloud (LPC), San Francisco Bay, San Pablo Bay, Suisun Bay, bathymetry, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, lidar, multibeam echo sounder, multibeam sonar, single-beam echo sounder, single-beam echo sounder, topographic mapping, topography, Fewer tags Footprints and producers of source data used to create central portion of the high-resolution (1 m) San Francisco Bay, California, digital elevation model (DEM) Polygon shapefile showing the footprint boundaries, source agency origins, and resolutions of compiled bathymetric digital elevation models (DEMs) used to construct a continuous, high-resolution DEM of the central portion of San Francisco Bay. 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, Digital Elevation Model (DEM) 1 meter, Golden Gate, All tags... PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, San Francisco Bay, U.S. Geological Survey, USGS, digital elevation models, elevation, geographic information systems, geospatial datasets, lidar, multibeam echo sounder, single-beam echo sounder, Fewer tags High-resolution (1 m) digital elevation model (DEM) of San Francisco Bay, California, created using bathymetry data collected between 1999 and 2016 (ver. 2.0, July 2021) A 1-m resolution bathymetric digital elevation model (DEM) of all off San Francisco Bay was constructed from bathymetric surveys collected from 1999 to 2020. The DEM has been divided into northern, central, and southern sections due to file size, and is available in both MLLW and NAVD88 versions. Background: In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging... Tags: Bathymetry and Elevation, California, Carquinez Strait, Digital Elevation Model (DEM) 1 meter, Geomorphology, All tags... Global Positioning System (GPS) observations, Golden Gate, Hydrology, Lidar Point Cloud (LPC), Oakland, San Francisco, San Francisco Bay, San Mateo, San Pablo Bay, San Rafael, Sedimentology, Suisun Bay, Water Resources, bathymetry, bathymetry measurement, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, multibeam echo sounder, single-beam echo sounder, topography, Fewer tags Digital elevation model (DEM) of central San Francisco Bay, California, created using bathymetry data collected between 2009 and 2020 (MLLW) A 1-m resolution, continuous surface, bathymetric digital elevation model (DEM) of the central portion of San Francisco Bay, was constructed from bathymetric surveys collected from 2005 to 2020. In 2014 and 2015 the California Ocean Protection Council (OPC) contracted the collection of bathymetric surveys of large portions of San Francisco Bay. A total of 93 surveys were collected using a combination of multibeam and interferometric side-scan sonar systems. Of those 93 surveys, 75 consist of swaths of data ranging from 18- to just over 100-meters wide. These swaths were separated by data gaps ranging from 10- to just over 300-meters wide. The no-data areas required interpolation to create a continuous surface. The... Tags: Bathymetry and Elevation, Digital Elevation Model (DEM) 1 meter, GPS measurement, Global Positioning System (GPS) observations, Golden Gate, All tags... Pacific Ocean, San Francisco Bay, bathymetry, digital elevation models, elevation, geographic information systems, geographic information systems (GIS), geospatial datasets, inlandWaters, multibeam echo sounder, multibeam sonar, single-beam echo sounder, single-beam echo sounder, topographic mapping, topography, Fewer tags Bathymetry, topography, and acoustic backscatter data, and a digital elevation model (DEM) of the Cache Slough Complex and Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, California This data release presents bathymetric and topographic data from surveys performed between 2017 and 2018 in the Cache Slough Complex and the Sacramento River Deep Water Ship Channel (DWSC), northern Sacramento-San Joaquin Delta, California. The shallow, highly vegetated aquatic habitats of this region necessitated a variety of survey platforms and techniques (fig. 1). In the deeper channels, swath bathymetry data were collected using a 234.5 kHz interferometric sidescan sonar pole-mounted to the 26-ft R/V San Lorenzo. In smaller channels and shallow areas not accessible with the larger survey vessel, swath bathymetry data were acquired with Kelpfly, a personal watercraft (PWC) equipped with a 468 kHz interferometric... Tags: Geomorphology Digital elevation model (DEM) of the Cache Slough Complex, Sacramento-San Joaquin Delta, California This metadata describes a digital elevation model (DEM) created from bathymetric and topographic data collected between 2004 and 2019 in the Cache Slough Complex (CSC), 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), 2017 USGS Sacramento Delta Lidar, and 2004 bathymetry data from the Army Corp of Engineers. Small gaps of missing data were filled with existing DWR/USGS Delta DEMs to produce a seamless DEM of the Cache Slough Complex with a grid resolution of 1 m. Remaining gaps in the DEM are areas where there is currently... Tags: Bathymetry, Bathymetry and Elevation, CMHRP, Cache Slough, Cache Slough Complex, All tags... Coastal and Marine Hazards and Resources Program, PCMSC, 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