Skip to main content
Advanced Search

Filters: Types: OGC WMS Service (X) > partyWithName: California Water Science Center (X)

102 results (56ms)   

View Results as: JSON ATOM CSV
thumbnail
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...
thumbnail
Model archive summary (MAS) describing the development of a suspended-sediment concentration (SSC) surrogate regression model for the Mad River Slough near Arcata, CA water quality station (USGS site ID# 405219124085601). A 15-minute SSC record was computed using this regression model for the period of record (03-04-2016 to 09-10-2019). The computed SSC record can be found on NWIS Web at https://waterdata.usgs.gov/nwis/inventory/?site_no=405219124085601&agency_cd=USGS. The SSC record was used to assess ambient SSC conditions, the availability of suspended sediment to support surface deposition and elevation gain in adjacent salt marshes, and to characterize salt marsh resiliency to climate change impacts in Humboldt...
thumbnail
An investigation was done by the U.S. Geological Survey, in cooperation with the California State Water Resources Control Board's Program of Regional Groundwater Monitoring of Water Quality in Areas of Oil and Gas Production, to assess the effects of oil and gas production activities on nearby groundwater resources. During November 2016–September 2017, 30 samples were collected at groundwater wells and 1 sample was collected at a surface-water site. This dataset contains site information and water chemistry results for samples collected near the Lost Hills and North and South Belridge oil fields, Kern County, California. Samples were analyzed for water-quality indicators, major and minor ions, nutrients, trace elements,...
thumbnail
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...
thumbnail
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...
thumbnail
This SSP project resulted in one publication. Carbon storage was compared between impounded and naturally tidal freshwater marshes along the Lower Waccamaw River in South Carolina, USA. Soil cores were collected in (1) naturally tidal, (2) moist soil (impounded, seasonally drained since ~1970), and (3) deeply flooded "treatments" (impounded, flooded to ~90 cm since ~2002). Cores were analyzed for % organic carbon, % total carbon, bulk density, and 210Pb and 137Cs for dating purposes. Carbon sequestration rates ranged from 25 to 200 g C m-2 yr-1 (moist soil), 80-435 g C m-2 yr-1 (naturally tidal), and 100-250 g C m-2 yr-1 (deeply flooded). The moist soil and naturally tidal treatments were compared over a period...
thumbnail
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...
thumbnail
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
thumbnail
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...
thumbnail
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...
thumbnail
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...
thumbnail
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...
thumbnail
Mendenhall and others (1916) assessed groundwater resources in California's San Joaquin Valley in 1910 to estimate the availability of groundwater of suitable quality for agricultural, industrial, and drinking water supplies. They inventoried nearly all existing wells, compiled depth-to-water at 4,002 wells, and collected water-quality data at 485 wells. Samples were collected from 114 wells for laboratory analysis of total dissolved solids (TDS), chloride, sulfate, bicarbonate, carbonate, calcium, magnesium, sodium+potassium, and silica (Mendenhall and others. 1916; Dole, 1909). Field assays were used to measure TDS, chloride, sulfate, bicarbonate, carbonate, and total hardness in samples from 371 wells (Mendenhall...
thumbnail
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)...
thumbnail
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.
thumbnail
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.
thumbnail
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.
thumbnail
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.
thumbnail
One of the largest hydraulic mines (1.6 km2) is located in California’s Sierra Nevada within the Humbug Creek watershed and Malakoff Diggins State Historic Park (MDSHP). MDSHP’s denuded and dissected landscape is composed of weathered Eocene auriferous sediments susceptible to chronic rill and gully erosion whereas block failures and debris flows occur in more cohesive terrain. This data release includes a 2014 digital elevation model (DEM), a study area boundary, and a geomorphic map. The 2014 DEM was derived from an available aerial LiDAR dataset collected in 2014 by the California Department of Conservation. The geomorphic map was derived for the study area from using a multi-scale spatial analysis. A topographic...


map background search result map search result map Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina High-speed mapping of water isotopes and residence time in Cache Slough Complex, San Francisco Bay Delta, CA Historic groundwater-quality, depth, and well-construction data for wells in the San Joaquin Valley, California, 1910 Geomorphic map of Malakoff Diggins State Historic Park, California Groundwater-quality data in the Sacramento Metro shallow aquifer study unit, 2017: Results from the California GAMA Priority Basin Project Geochemical, mineralogical, and grain-size data for in-situ solid materials and suspended sediment at Malakoff Diggins State Historic Park, Nevada County, California Streamflow, Runoff and Baseflow Estimates for Gaged Basins in the Northwest Volcanic Aquifer Study Area, USA, 1904 to 2015 Electromagnetic induction (EMI) geophysical data collected at the Bicycle Basin, U.S. Army Fort Irwin National Training Center, California Water chemistry data for samples collected at groundwater and surface-water sites near the Lost Hills and Belridge oil fields, November 2016–September 2017, Kern County, California (ver. 2.0, December 2021) Aquifer test data for multiple-well monitoring site LHSP, Kern County, California Ground-based transient electromagnetic data and resistivity models at selected sites of the California Central Coast and San Joaquin Valley 2019 Groundwater quality data from Bristol and Cadiz Basins, San Bernardino County, California, USA Model Archive Summary and Time-Series Suspended-Sediment Concentration Computed from a Surrogate Turbidity Regression at USGS Station 381410121395801; Miner Slough near Rio Vista, California (2015-2017) Model Archive Summary and Time-Series Suspended-Sediment Concentrations Computed from a Surrogate Turbidity Regression at USGS Station 11336930 Mokelumne River at Andrus Island near Terminous, Ca (2010 - 2016) Biomass accrual and trace-element concentrations in water and periphytic algae at select locations in the Clark Fork and Blackfoot Rivers, Montana, 2015 Basin Characterization Model (BCMv8) for California Coastal Basins - Monthly Historical (water years 1896-2019) and Future (water years 2006-2099) Climate and Hydrology Model Archive Summary for a Suspended-Sediment Concentration Surrogate Regression Model for Station 405219124085601; Mad River Slough near Arcata, CA Model Archive Summary for Surrogate Turbidity Regression at USGS station 11455780 Suisun Bay at Benicia Bridge near Benicia CA (Upper Sensor), Water Years 2018, 2019, and 2020 Model Archive Summary for Turbidity Derived Suspended-Sediment Concentrations at 11455350 Cache Slough at Ryer Island, Ca (2013-2018) Aerial imagery and other remotely-sensed data from a UAS survey of Pepperwood Preserve, Sonoma County, CA Aquifer test data for multiple-well monitoring site LHSP, Kern County, California Model Archive Summary for Surrogate Turbidity Regression at USGS station 11455780 Suisun Bay at Benicia Bridge near Benicia CA (Upper Sensor), Water Years 2018, 2019, and 2020 Geomorphic map of Malakoff Diggins State Historic Park, California Geochemical, mineralogical, and grain-size data for in-situ solid materials and suspended sediment at Malakoff Diggins State Historic Park, Nevada County, California Electromagnetic induction (EMI) geophysical data collected at the Bicycle Basin, U.S. Army Fort Irwin National Training Center, California Model Archive Summary and Time-Series Suspended-Sediment Concentrations Computed from a Surrogate Turbidity Regression at USGS Station 11336930 Mokelumne River at Andrus Island near Terminous, Ca (2010 - 2016) Aerial imagery and other remotely-sensed data from a UAS survey of Pepperwood Preserve, Sonoma County, CA Water chemistry data for samples collected at groundwater and surface-water sites near the Lost Hills and Belridge oil fields, November 2016–September 2017, Kern County, California (ver. 2.0, December 2021) Model Archive Summary for Turbidity Derived Suspended-Sediment Concentrations at 11455350 Cache Slough at Ryer Island, Ca (2013-2018) Biomass accrual and trace-element concentrations in water and periphytic algae at select locations in the Clark Fork and Blackfoot Rivers, Montana, 2015 Groundwater-quality data in the Sacramento Metro shallow aquifer study unit, 2017: Results from the California GAMA Priority Basin Project Ground-based transient electromagnetic data and resistivity models at selected sites of the California Central Coast and San Joaquin Valley 2019 Groundwater quality data from Bristol and Cadiz Basins, San Bernardino County, California, USA Historic groundwater-quality, depth, and well-construction data for wells in the San Joaquin Valley, California, 1910 Carbon sequestration rates in managed and tidal freshwater marshes in the Waccamaw National Wildlife Refuge, South Carolina Streamflow, Runoff and Baseflow Estimates for Gaged Basins in the Northwest Volcanic Aquifer Study Area, USA, 1904 to 2015 Basin Characterization Model (BCMv8) for California Coastal Basins - Monthly Historical (water years 1896-2019) and Future (water years 2006-2099) Climate and Hydrology