Filters: partyWithName: U.S. Geological Survey - ScienceBase (X) > Types: OGC WMS Layer (X) > partyWithName: Water Resources (X) > partyWithName: California Water Science Center (X)
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Ground-based transient electromagnetic (TEM) data were acquired by the U.S. Geological Survey (USGS) at 16 locations of California’s southwestern San Joaquin Valley and Central Coast regions to define the electrical resistivity structure of hydrogeologic materials. Data were acquired using the ABEM WalkTEM system (Guideline Geo Ab, Sundbyberg, Sweden). TEM data were processed and numerically inverted to derive one-dimensional resistivity structure using SPIA (Aarhus Geosoftware, Aarhus, Denmark). The resulting models reveal vertical variations in electrical resistivity associated with geologic structure and zones of high salinity groundwater. This release includes raw and processed TEM data and a resistivity model...
This product summarizes the collection and analysis of bed material sample grain size distribution collected from the Iron Gate, Copco, and J.C. Boyle Reservoirs located in Northern California and Southern Oregon on the Klamath River. Samples were collected on June 16, 2020 from cores (less than 1m depth) and processed for the full size distribution.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Bed material,
Bed sediment,
California,
Copco Reservoir,
Geomorphology,
This data release contains monthly 270-meter gridded Basin Characterization Model (BCMv8) climate inputs and hydrologic outputs for 17 California Coastal Basins (Eel River, Fort Bragg, Fort Ross, Klamath, Los Angeles, Mad River, Mattole, Napa Sonoma, Russian River, Salinas, San Diego, San Francisco Coastal South, Santa Clara River Valley, Santa Clara River Valley South Bay, Smith, South Bay, and South Delta) and the surrounding contributing watershed area containing 181 groundwater basins. Downscaled gridded climate inputs (Daly et al., 2008) include: precipitation (ppt), minimum temperature (tmn), maximum temperature (tmx), and potential evapotranspiration (pet). Gridded hydrologic variables include: actual evapotranspiration...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Climatology,
Environmental Health,
Geography,
Hydrology,
This digital dataset contains the soil data for the updated Central Valley Hydrologic Model (CVHM2). The soil data is based on California Department of Water Resource’s C2VSim’s fine grid model soil curve number data set (C2VSimFG Version 1.0 - Datasets; CNRA, 2011). These values were originally obtained from the U.S. Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS) Soil Survey Geographic Database (SSURGO) soil map of the State of California (USDA, 2004), and then an area-weighted average value for each hydrologic soil group within each subregion was calculated to the C2VSim element. Curve number values obtained from SSURGO were converted for use in C2VSimFG. To translate the curve...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
Central Valley,
Curve Number,
SSURGO,
Soil Data,
Model for computing point estimates of continuous 15-minute time-series suspended-sediment concentration data from instream turbidity data. Turbidity data is published in NWIS. Model is based on data from WY2015-2020 and applies beginning Water Year 2018 (1 October 2017).
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Benicia,
California,
Geomorphology,
Hydrology,
Hydrology,
This data release contains Uncrewed Aircraft System (UAS) imagery from three data collection campaigns (flights) over the Pepperwood Preserve in Sonoma County, California. Each child item contains: 1) Orthophoto, 2) Thermal, 3) Normalized Difference Vegetation Index (NDVI), 4) L-band microwave brightness temperature (Tb), 5) Estimated soil moisture, and 6) Digital elevation model from orthoimagery. The overall footprint varies depending on the flight, and the third flight in May 2023 contains an additional set of high-resolution Tb and calculated soil moisture maps for a smaller footprint. The first two flights were performed using a BlackSwift S2, which is a fixed-wing UAS with a 3-meter wingspan, and the third...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Calistoga,
Geography,
Hydrology,
Pepperwood Preserve,
Water chemistry data from wells drilled by brine operations in Bristol and Cadiz Basins in San Bernardino County, California, USA. These data are used in the Journal article: Rosen, M.R., Stillings, L.L., Kane, T., Campbell-Hay, K., Vitale, M., Spanjers, R., 2020, Possible sources and mechanisms of anomalous Li and Ca enrichment in the Bristol Dry Lake brine compared to other playa brines in the Barstow-Bristol Trough, California, USA. Minerals, 10, 284; https://doi.org/10.3390/min10030284
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bristol Lake,
Cadiz Lake,
California,
California,
Geochemistry,
The U.S. Geological Survey’s Water Availability and Use Study Program (WAUSP) (https://water.usgs.gov/ogw/gwrp/activities/regional.html) supports quantitative assessments of groundwater availability in areas of critical importance. As part of a WAUSP study in the arid to semi-arid Northwest Volcanic Aquifer Study Area (NVASA), estimates of runoff and baseflow were determined for 312 streamflow-gaging stations from 1904 to 2015. Gages with complete water years (October to September) of continuous-streamflow record were used to partition streamflow into runoff and baseflow, which is that part of streamflow attributed to groundwater discharge. For each water year annual estimates of baseflow, runoff, and a base-flow...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
GWToolbox,
Hydrogeology,
Idaho,
NVASA,
This data release presents raw (.csv) and processed (.csv) data files from land-based, frequency-domain electromagnetic induction (EMI) data collected at Bicycle Basin, U.S. Army Fort Irwin National Training Center, California. Data were collected during three distinct time periods: March 19, 2008 (1 survey), December 1 to December 5, 2014 (46 surveys) and December 4 to December 8, 2015 (62 surveys). Data were collected by walking along survey lines throughout the airstrip region of the basin with the Geophex GEM-2 instrument at a height of approximately 1 meter above land surface in horizontal coplanar (ski flat) mode. The EMI data were used to map variations in subsurface electrical conductivity to investigate...
The U.S. Geological Survey collected groundwater samples from 49 wells used for domestic and small system drinking water supplies in Amador, Placer, Sutter, and Sacramento Counties, California in 2017. The wells were sampled for the Sacramento Metropolitan (SacMetro) Shallow Aquifer Study Unit of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority Basin Project’s assessment of the quality of groundwater resources used for domestic and small system drinking water supplies. Domestic and small-system wells are commonly screened at shallower depths than public-supply wells. The SacMetro study unit consisted of three “study areas” corresponding to three...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Amador County,
California,
Environment,
GAMA,
Groundwater,
To determine aquifer characteristics, pneumatic slug tests were performed on selected zones and aquifers at a monitoring site near the Lost Hills oil field in the Southern San Joaquin Valley in Kern County. On May 30th and 31st, 2018, pneumatic slug tests were performed at five monitoring wells located at the multiple-well groundwater-monitoring site LHSP (26S/21E-07J1 through –J5) near Lost Hills, CA in the Southern San Joaquin Valley. Data were collected using In-Situ LevelTROLL 500 30psig pressure transducers set to record the depth to water level below land surface at one second intervals. Computations were performed using Aqtesolv software and analyzed using the KGS Model package for overdamped slug tests performed...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Hydrology,
Kern,
Lost Hills,
Southern San Joaquin Valley,
This dataset includes data for in-situ solid materials and suspended sediments from surface-water samples, as well as surface-water chemistry from samples collected during storm events at Malakoff Diggins State Historic Park, Nevada County, California. In-situ solid samples were collected during 2015 along six vertical transects along the cliff walls of the mine pit. Surface-water samples were collected during 2014 and 2016 from Hiller Tunnel and from drainage networks below the in-situ sampling sites during runoff conditions. In-situ and suspended-sediment samples were analyzed for grain-size distribution, X-ray diffraction (XRD) for quantitative mineralogy, inductively coupled plasma - mass spectrometry (ICP-MS)...
Continuous 15-minute time-series suspended-sediment concentration (SSC) data, representative of the cross section, were computed from instream turbidity data and are acceptable to compute sediment transport. Instream turbidity data were collected at the same location of the ADVM. Sediment samples were collected along the channel transect shown in the channel cross section information file. Complete model details are described in the Model Archive Summary document.
Model archive summary (MAS), "381410121395801_MIR_ExpandedMAS.docx", describing the development of a continuous 15-minute suspended-sediment concentration (SSC) time series regression model for the site: Miner Slough near Rio Vista (U.S. Geological Survey (USGS) site # 381410121395801). The SSC time series is computed from instream turbidity data that is managed by the California Department of Water Resources (CDWR) using a YSI 6-series multi-parameter water quality sonde. Complete methods for turbidity data collection are described in the attached methods document.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Geomorphology,
Hydrology,
Hydrology,
Miner Slough,
The California Groundwater Ambient Monitoring and Assessment Program (GAMA) is a statewide assessment of groundwater quality designed to help better understand and identify risks to groundwater resources. GAMA is implemented by the California State Water Resources Control Board. The U.S. Geological Survey (USGS) is the technical lead for the Priority Basin Project (PBP), one of the components of the GAMA Program. Starting in 2012, GAMA began an assessment of water resources in domestic-supply (shallow) aquifers in California. These aquifers provide water for domestic and small community-supply wells, which are often drilled to shallower depths in the groundwater system than public-supply wells. Domestic-supply aquifers...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: California,
GAMA,
Groundwater,
Priority Basin Project,
United States,
This dataset provides the calculated proportion of people using publicly supplied groundwater (PSGF) for each county in the conterminous U.S. The county boundaries and the PSGF represent the year 2015.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: United States,
drinking water use,
geoscientificInformation,
groundwater,
public supply water use
Continuous 15-minute time-series suspended-sediment concentration data computed from instream turbidity data. Turbidty data is managed by California Department of Water Resources (CDWR) using a YSI 6-series multi-parameter water quality sonde. Complete methods for turbidity data collection are described in attached methods document.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: California,
Geomorphology,
Hydrology,
Hydrology,
Map Service,
The U.S. Geological Survey monitored algal biomass accrual and concentrations of metals and other trace elements in stream water and periphytic algae at 3-4 day intervals over a 2-week period at 3 locations within the upper and middle portions of the mining-impacted Clark Fork River, Montana, and at one location on the relatively unimpacted Blackfoot River tributary. This data release makes available trends in major and minor trace element concentrations in surface water and periphytic algae, and corresponding trends in concentrations of autotrophic (chlorophyll a) and heterotrophic (ash-free dry mass) algal biomass collected in late July and early August 2015.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Aquatic Biology,
Black Foot River,
Botany,
Clark Fork River,
Ecology,
Field data for fishes sampled using bottom gill nets and otter trawls and associated water quality variables in the northern part of the Sacramento-San Joaquin Delta, California, USA. Two adjacent tidal wetlands were targeted for sampling: Little Holland Tract and Liberty Island Conservation Bank.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Aquatic Biology,
Aquatic Biology,
Cache Slough Complex,
California,
Ecology,
Note: This data release has been revised. The updated version is available here: https://doi.org/10.5066/P9DR22GD. As part of the California State Water Resources Control Board’s Regional Groundwater Monitoring Program of Water Quality in Areas of Oil and Gas Production, during September 2016–February 2017, the U.S. Geological Survey collected and analyzed groundwater and associated quality-control (QC) samples from 14 water-production wells located within a three mile buffer zone of and in the Fruitvale Oil field, Kern County, California. Samples were analyzed for water-quality indicators, major and minor ions, nutrients, trace elements, volatile organic compounds, naturally occurring radioactive material, geochemical...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bakersfield,
California,
Central Valley,
Fruitvale oil field,
Geochemistry,
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