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Topographic survey data and digital elevation model of Oxbow Reservoir, Placer County, California, October 2022 This data release presents topographic survey data and a digital elevation model (DEM) of Oxbow Reservoir, in Placer County, California. The U.S. Geological Survey (USGS) conducted a topographic survey of accessible regions of the reservoir sediment on 26 October 2022, when the reservoir was partially de-watered to allow repairs to the dam infrastructure following the Mosquito Fire. The survey was conducted to document baseline reservoir sediment elevation in Oxbow Reservoir immediately after the Mosquito Fire, prior to the first post-fire runoff of the 2022-2023 winter. During the survey, significant portions of the reservoir site remained inaccessible to surveyors due to the continued flow of the Middle Fork American... Categories: Data; Tags: Alabama Bar, Bathymetry and Elevation, CHMRP, Coastal and Marine Hazards and Resources Program, Geomorphology, All tags... Middle Fork American River, 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 San Francisco Bay-Delta bathymetric/topographic digital elevation model (DEM) A high-resolution (10-meter per pixel) digital elevation model (DEM) was created for the Sacramento-San Joaquin Delta using both bathymetry and topography data relative to current modern datum of North American Vertical Datum of 1988 (NAVD88). This DEM is the result of collaborative efforts of the U.S. Geological Survey (USGS) and the California Department of Water Resources (DWR). The base of the DEM is from a 10-m DEM released in 2004 and updated in 2005 (Foxgrover and others, 2005) that used Environmental Systems Research Institute (ESRI), ArcGIS Topo to Raster module to interpolate grids from single beam bathymetric surveys collected by DWR, the Army Corp of Engineers (COE), the National Oceanic and Atmospheric... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: American River, Bathymetry and Elevation, Echo Sounders, Fremont Weir, GPS (Global Positioning System), All tags... Geophysics, Global Positioning System (GPS) observations, Knights Landing, LIDAR, Liberty Island, Mildred Island, Nimbus Dam, Sacramento, Sacramento River, Sacramento River Deep Water Ship Channel, Sacramento-San Joaquin Delta, San Francisco Bay, San Francisco Bay Delta, San Joaquin River, Suisun Bay, Tracy, Water Depth, Yolo By-Pass, bathymetry, digital elevation models, elevation, geographic information systems, geospatial datasets, single-beam echo sounder, topographic mapping, topography, Fewer tags Topographic survey data of Oxbow Reservoir, Placer County, California, October 2022 This portion of the data release presents topographic survey data of portions of Oxbow Reservoir in Placer County, California. These data were 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, these data cover approximately 50 percent of the total surface area of the reservoir at full pool. The data were collected using two RTK GNSS backpack rovers which were referenced to a temporary GNSS base station occupying... 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 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