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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 Assessment of nutrients and water-quality constituents in the North Delta during Yolo Bypass flooding events in March 2017 The data release contains data for the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the North Delta in the Sacramento-San Joaquin River Delta of California, USA. The data set includes nitrate, ammonium, phosphate, dissolved organic carbon, temperature, conductivity, dissolved oxygen, turbidity, and chlorophyll. Data-collection cruises were conducted over two days in March 2017 during a high flow event when Sacramento Valley flood waters inundate the Yolo Bypass. Categories: Data; Tags: Cache Slough, California, Central Valley, Environmental Health, Geochemistry, All tags... Lower Sacramento, Sacramento River, Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), United States, Water Quality, Water Resources, Yolo Bypass, biogeochemistry, biota, delta, drinking water use, environment, high-resolution, hydrogeology, inlandWaters, nutrient content (water), nutrients, phytoplankton, public supply water use, real-time, statistical analysis, visualization methods, water quality, Fewer tags Chemical and Stable Isotope Data for Discrete Water Samples Collected in the Northern Sacramento-San Joaquin Delta, 2011-2012 This data set consists of chemical and stable isotope data obtained through the analysis of discrete water samples collected from 14 fixed sampling locations in the northern Sacramento-San Joaquin Delta at roughly monthly intervals between April 2011 and November 2012. Categories: Data; Tags: Cache Slough, Lindsey Slough, Miner Slough, Prospect Slough, Sacramento River, All tags... Sacramento San Joaquin Delta, Steamboat Slough, Toe Drain, USGS Science Data Catalog (SDC), biogeochemical cycling, datasets, light stable isotope analysis, nutrient content (water), water quality, 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 Ground control point locations for UAS survey of the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, 2018-10-23 This portion of the data release presents the locations of the temporary ground control points (GCPs) used for the structure-from-motion (SfM) processing of the imagery collected during the Unmanned Aerial System (UAS) survey on of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta on 2018-10-23. The GCPs were used to establish ground control for the survey and consisted of 24 small (80 x 80 centimeter) square tarps with black-and-white cross patterns placed on the ground surface throughout the mapping area during the survey. The GCP positions were measured using RTK GPS, with corrections from a GPS base station located approximately 3 kilometers south of the study... Categories: Data; Tags: Bathymetry and Elevation, CHMRP, Cache Slough, Coastal and Marine Hazards and Resources Program, Liberty Island, All tags... 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, Structure-from-motion, U.S. Geological Survey, UAS, USGS, Unmanned aerial system, aerial photography, altimetry, elevation, fragile ecosystems, geomorphology, geoscientificInformation, geospatial datasets, image mosaics, photography, remote sensing, remote sensing, topographic maps, topography, wetland restoration, Fewer tags High-speed mapping of water isotopes and residence time in Cache Slough Complex, San Francisco Bay Delta, CA Real-time, high frequency (1-second sample interval) GPS location, water quality, and water isotope (δ2H, δ18O) data was collected in the Cache Slough Complex (CSC), located in the northern San Francisco Bay Delta (SFBD). Data was collected on 10/01/2014 for an approximate 4-hour period (10:30 – 14:30 h PST) while underway on the R/V Mary Landsteiner, a 26-foot USGS vessel. Sample water was pumped continuously through a pickup tube, passed through a 178 micron pre-filter, a de-bubbler, and diverted through a 0.2 micron filter and an unfiltered flow path to water quality instrumentation. The real-time data were recorded using a Campbell Scientific CR-6 data logger. Water isotopes (δ2H, δ18O) were logged to a separate... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Aquatic Biology, Cache Slough, Ecology, Geochemistry, Hydrogeology, All tags... Liberty Cut, Liberty Island, Lindsey Slough, Little Holland Tract, Prospect Slough, Sacramento River, Sacramento-San Joaquin Delta, Shag Slough, Toe Drain, USGS Science Data Catalog (SDC), algae, chlorophyll a, hydrodynamics, isotopes, nitrate nitrogen, nitrogen, real-time data, surface water quality, Fewer tags Assessing spatial variability of nutrients and related water quality constituents in the California Sacramento-San Joaquin Delta: 2015-2022 High resolution mapping surveys in the North Delta-Suisun Habitat Arc This data release documents the spatial and temporal variability of nutrients and related water quality parameters at high spatial resolution in the Sacramento-San Joaquin River Delta of California, USA. The data set includes nitrate, ammonium, phosphate, dissolved organic carbon, temperature, conductivity, dissolved oxygen, turbidity, and chlorophyll. Data-collection were conducted over fourteen days between April 2015 - October 2022 with support from multiple cooperators. NOTE: Files marked as preliminary are provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided... Categories: Data, Data Release - In Progress; Tags: Cache Slough, California, Central Valley, Lower Sacramento, Sacramento River, All tags... Sacramento-San Joaquin Delta, San Francisco Bay, United States, Yolo Bypass, biogeochemistry, biota, delta, discrete sampling, drinking water use, environment, high-resolution, hydrogeology, inlandWaters, nutrient content (water), nutrients, phytoplankton, public supply water use, real-time, statistical analysis, visualization methods, water quality, 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 Zooplankton Survey of the Northern Sacramento-San Joaquin Delta, California, 2016-2018 This data set contains information on zooplankton and associated environmental parameters for sampling conducted in California's northern Sacramento-San Joaquin Delta between May 2016 and April 2018. Macrozooplankton were sampled with horizontal tows (water surface) of a 50 cm-diameter conical plankton net that was 150cm long with 102µm mesh. Samples were preserved in the field in 10% formalin for laboratory processing that was conducted by a contractor (EcoAnalysts, Inc). Categories: Data; Tags: Aquatic Biology, Aquatic Biology, Cache Slough, California, Ecology, All tags... Sacramento-San Joaquin Delta, USGS Science Data Catalog (SDC), United States, Water Quality, Zooplankton, biota, Fewer tags