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Mean high water (MHW) shorelines along the coast of California used to calculated shoreline change from 1998 to 2016 This data release contains mean high water (MHW) shorelines for sandy beaches along the coast of California for the years 1998/2002, 2015, and 2016. The MHW elevation in each analysis region (Northern, Central, and Southern California) maintained consistency with that of the National Assessment of Shoreline Change. The operational MHW line was extracted from Light Detection and Ranging (LiDAR) digital elevation models (DEMs) using the ArcGIS smoothed contour method. The smoothed contour line was then quality controlled to remove artifacts, as well as remove any contour tool interpretation of human-made infrastructure (such as jetties, piers, and sea walls), using satellite imagery from ArcGIS. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, CenCal, Central California, Climate Change, ClimatologyMeteorologyAtmosphere, All tags... Coastal and Marine Hazards and Resources Program, El Nino events, El Nino-Southern Oscillation, NorCal, Northern California, Oceans, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Sea-level Change, SoCal, Southern California, State of California, Storms, U.S. Geological Survey, USGS, coastal erosion, sea level change, waves, Fewer tags Bathymetric change of South San Francisco Bay, California: 1979 to 2020 This 50-m-resolution surface presents bathymetric change of South San Francisco Bay, California (hereafter referred to as South Bay). This surface compares a 1-m-resolution digital elevation model (DEM) of the southern portion of San Francisco Bay (Fregoso and others, 2021), comprised of bathymetry data in the South Bay region from the time period referred to as the 2010s because the majority of the surveys were in that decade, to a 50-m-resolution DEM of South Bay comprised of historic surveys from 1979 to 1985 (referred to as the 1980s because the majority of the surveys were in that decade). The creation of this change surface involved the resampling of the 1-m-resolution 2010s DEM to match the 50-m-resolution... Categories: Data; Tags: Bathymetry and Elevation, GPS measurement, Global Positioning System (GPS) observations, San Francisco Bay, South Bay, All tags... bathymetry, coastal processes, 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 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 Bathymetric change of San Pablo Bay, California: 1983 to 2015 This 25-m-resolution surface presents bathymetric change of San Pablo Bay, California, from 1983 to 2015. This surface compares a 1-m-resolution digital elevation model (DEM) of the northern portion of San Francisco Bay (Fregoso and others, 2020), comprised of bathymetry data in the San Pablo Bay region from the time period referred to as the 2010s because the majority of the surveys were in that decade, to a 25-m-resolution bathymetric DEM of San Pablo Bay comprised of historic surveys from 1983 to 1986 (referred to as the 1980s because the majority of the surveys were in that decade). The creation of this change surface involved the resampling of the 1-m-resolution 2010s DEM to match the 25-m-resolution of the... Categories: Data; Tags: Bathymetry and Elevation, GPS measurement, Global Positioning System (GPS) observations, San Francisco Bay, San Pablo Bay, All tags... bathymetry, coastal processes, 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 Bathymetric change of Suisun Bay, California: 1988 to 2016 This 25-m-resolution surface presents bathymetric change of Suisun Bay, California, from 1988 to 2016. This surface compares a 1-m-resolution digital elevation model (DEM) of the northern portion of San Francisco Bay (Fregoso and others, 2020), comprised of bathymetry data in the Suisun region from the time period referred to as the 2010s because the majority of the surveys were in that decade, to a 25-m-resolution bathymetric DEM of Suisun Bay comprised of historic surveys from 1988 to 1990 (referred to as the 1990s because the majority of the surveys were in that decade). The creation of this change surface involved the resampling of the 1-m-resolution 2010s DEM to match the older 25-m-resolution of the 1990s... Categories: Data; Tags: Bathymetry and Elevation, GPS measurement, Global Positioning System (GPS) observations, San Francisco Bay, Suisun Bay, All tags... bathymetry, coastal processes, 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 Northern California cross-shore transects for CoSMoS 3.2 Cross-shore transects (CSTs) developed for Coastal Storm Model (CoSMoS) work in Northern California 3.2 are presented. 3,528 CSTs are numbered consecutively from 8067 at Golden Gate Bridge to 11,594 at the California/Oregon state border. Each of the profiles extend from the approximate -15 m isobath to at least 10 m above NAVD88 (truncated in cases where a lagoon or other waterway exists on the landward end of the profile), and are spaced approximately 100-250 m apart. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beaches, CMHRP, Climate Change, ClimatologyMeteorologyAtmosphere, Coastal and Marine Hazards and Resources Program, All tags... Erosion, Extreme Weather, Floods, Floods, Hazards Planning, Northern California, Northern California Coast, Ocean Waves, Ocean Winds, Oceans, PCMSC, Pacific Coastal and Marine Science Center, State of California, Storm Surge, Storms, U.S. Geological Survey, USGS, Water Depth, Wind, earth sciences, effects of climate change, mathematical modeling, waves, 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 Bathymetric change of Central San Francisco Bay, California: 1971 to 2020 This 25-m-resolution surface presents bathymetric change of Central San Francisco Bay, California (hereafter referred to as Central Bay). This surface compares a 1-m-resolution digital elevation model (DEM) of the central portion of San Francisco Bay (Fregoso and others, 2021), comprised of bathymetry data in the Central Bay region from the time period referred to as the 2010s because the majority of the surveys were in that decade, to a 25-m-resolution DEM of Central Bay comprised of historic surveys from 1971 to 1984 (referred to as the 1980s because the majority of the surveys were in that decade). The creation of this change surface involved the resampling of the 1-m-resolution 2010s DEM to match the 25-m-resolution... Categories: Data; Tags: Bathymetry and Elevation, Central Bay, GPS measurement, Global Positioning System (GPS) observations, San Francisco Bay, All tags... bathymetry, coastal processes, 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 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 Shoreline change rates along the coast of California from 1998 to 2016 This dataset contains California shoreline change rates derived from mean high water (MHW) shorelines from 1998 (in Central and Southern California) and 2002 (in Northern California) to 2016. The MHW elevation in each analysis region (Northern, Central, and Southern California) maintained consistency with that of the National Assessment of Shoreline Change. The operational MHW line was extracted from Light Detection and Ranging (LiDAR) digital elevation models (DEMs) using the ArcGIS smoothed contour method. Within the Digital Shoreline Analysis System (DSAS), end-point rates (EPR) of shoreline change were calculated between the 1998/2002 and the 2016 shorelines at a transect spacing of 50 meters to provide a long-term... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, CenCal, Central California, Climate Change, ClimatologyMeteorologyAtmosphere, All tags... Coastal and Marine Hazards and Resources Program, El Nino events, El Nino-Southern Oscillation, NorCal, Northern California, Oceans, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Sea-level Change, SoCal, Southern California, State of California, Storms, U.S. Geological Survey, USGS, coastal erosion, sea level change, waves, Fewer tags Digital elevation model (DEM) of south San Francisco Bay, California, created using bathymetry data collected between 2005 and 2020 (NAVD88) 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 (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 Shoreline change data along the coast of California from 2015 to 2016 This dataset contains shoreline change measurements for sandy beaches along the coast of California over the 2015/2016 El Nino winter season. Mean high water (MHW) shorelines were extracted from Light Detection and Ranging (LiDAR) digital elevation models from the fall of 2015 and the spring of 2016 using the ArcGIS smoothed contour method. The MHW elevation in each analysis region (Northern, Central, and Southern California) maintained consistency with that of the National Assessment of Shoreline Change. Within the Digital Shoreline Analysis System (DSAS), the net shoreline movement (NSM) between the pre-El Nino (2015) and post-El Nino (2016) shorelines was calculated at a transect spacing of 50 meters as a proxy... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: CMHRP, CenCal, Central California, Climate Change, ClimatologyMeteorologyAtmosphere, All tags... Coastal and Marine Hazards and Resources Program, El Nino events, El Nino-Southern Oscillation, NorCal, Northern California, Oceans, PCMSC, Pacific Coastal and Marine Science Center, Physical Habitats and Geomorphology, Sea-level Change, SoCal, Southern California, State of California, Storms, U.S. Geological Survey, USGS, coastal erosion, sea level change, waves, 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 Nearshore total water level (TWL) proxies (2018-2100) for Northern California Nearshore proxies for total water level (TWL) developed for Coastal Storm Model (CoSMoS) work in Northern California 3.2 are presented. Deterministic dynamical modeling of future climate conditions and associated hazards, such as flooding, can be computationally-expensive if century-long time-series of waves, sea level variations, and overland flow patterns are simulated. To focus such modeling on storm events of interest, local impacts over long time periods and large geographical areas are estimated. Nearshore proxies for total water level (TWL) are generated via a computationally simple approach, assuming a linear superposition of the important processes contributing to overall total water level. A time series... Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Beaches, CMHRP, Climate Change, ClimatologyMeteorologyAtmosphere, Coastal and Marine Hazards and Resources Program, All tags... Erosion, Extreme Weather, Floods, Floods, Hazards Planning, Northern California, Northern California Coast, Ocean Waves, Ocean Winds, Oceans, PCMSC, Pacific Coastal and Marine Science Center, State of California, Storm Surge, Storms, U.S. Geological Survey, USGS, Water Depth, Wind, earth sciences, effects of climate change, mathematical modeling, waves, Fewer tags