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Location Folder Show Tree ROOT _ScienceBase Catalog __Pacific Coastal and Marine Science Center A GIS compilation of vector shorelines and coastal bluff edge positions, and associated rate-of-change data for Barter Island, Alaska Aerial imagery and structure-from-motion data products from a UAS survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Lone Tree Point, Kiket Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Post Point, Bellingham Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, June 2019 More... Filters Date Range Past year (4) Past month (1) Past week (1) Past day (0) Custom range... To   Search Contacts PCMSC Science Data Coordinator Pacific Coastal and Marine Science Center U.S. Geological Survey - ScienceBase Theresa Fregoso Bruce E Jaffe More... Categories Data (2) Tag Types USGS Scientific Topic Keyword (4) Theme (1) Place (1) Tag Schemes Common geographic areas (1) USGS Thesaurus (1) Marine Realms Information Bank (MRIB) keywords (1) ISO 19115 Topic Category (1) The National Map Collection Thesaurus (1) Data Categories for Marine Planning (1) GNIS (1) View Results as: JSON ATOM CSV Browse Folder

Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 Note: this data release has been deprecated. Please see new data release here: https://doi.org/10.5066/P1332UUW. This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data collected in the 1970s and 1980s with DEMs created from bathymetric data collected in the 2010s and 2020. These types of change analyses can provide information on the quantities and patterns of erosion and deposition in San Francisco Bay over the 9 to 47 years between surveys, and they reveals that the bay floor lost about 34 million cubic meters of sediment between the intervening time period. Results from this study can... Categories: Data; Tags: Geomorphology, Hydrology, Marine Geology, Sedimentology, Water Quality Bathymetric change analysis in San Francisco Bay, California, from 1971 to 2020 This data release supersedes version 1.0, published in April 2023 at https://doi.org/10.5066/P9Y5PEV0. Versioning details are documented in the accompanying SFBay_BathyChange_VersionHistory.txt file. This data release provides bathymetric change grids of four geographic areas of San Francisco Bay, California, comparing digital elevation models (DEMs) created from bathymetric data collected in the 1970s and 1980s with DEMs created from bathymetric data collected in the 2010s and 2020. These types of change analyses can provide information on the quantities and patterns of sediment erosion and deposition in San Francisco Bay over the 9 to 47 years between surveys, and they reveal that the bay floor lost about 20... Categories: Data; Tags: Geomorphology, Hydrology, Marine Geology, Sedimentology, Water Quality California shorelines and shoreline change data, 1998-2016 This data release contains mean high water (MHW) shorelines along the coast of California for the years 1998/2002, 2015, and 2016, extracted from Light Detection and Ranging (LiDAR) digital elevation models using ArcGIS. The Digital Shoreline Analysis System (DSAS) was used to calculate net shoreline movement (NSM) between the pre-El Niño (2015) and post-El Niño (2016) shorelines, as a proxy for sandy shoreline change throughout the El Niño winter season. For a longer-term perspective of background shoreline behavior, end-point rates (EPR) of change were also calculated between the 1998/2002 and the 2016 shorelines. Tags: Climatology, Geomorphology, Marine Geology, Remote Sensing 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