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Filters Date Range Past year (155) Past month (2) Past week (0) Past day (0) Custom range... To   Search Extensions Shapefile (3) Raster (1) Types Map Service (17) OGC WFS Layer (17) OGC WMS Layer (17) OGC WMS Service (15) Citation (8) More... Contacts U.S. Geological Survey Water Resources Michael E. Wieczorek Andrew E. LaMotte Maryland-Delaware-D.C. Water Science Center More... Categories pre-SM502.8 (71) Data (29) Data Release - Revised (1) Tag Types Place (2901) Tags (with Scheme=Geographic Names Information System) california (182) missouri (72) conterminous united states (62) cali (61) glmr (59) great lakes, ohio, upper mississippi, and souris-red-rainy (59) lmtg (59) More... View Results as: JSON ATOM CSV

Delineated Aquifer Boundaries of the Lake Tahoe Basin These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. These data present a ground-water inventory of existing geospatial data and other information needed to determine the extent and characteristics of the aquifers in the Tahoe Basin. Geospatial and other data include geologic maps and soil surveys of the entire basin and for specific watersheds within the basin at the best available scales; vegetation remote-sensing datasets; well information from various local, state, and federal... Tags: California, Environment, Geoscientific Information, Ground water, Inland waters, All tags... Lake Tahoe, NSDI, Nevada, USGS Science Data Catalog (SDC), Fewer tags Available Water Capacity for the Upper Colorado River Basin in Maurer et al. (2002) Climate Data resolution (awc_UCRB_Maurer_resolution.asc) These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. awc_UCRB_Maurer_resolution.asc is an Esri ASCII grid representing the available water capacity (AWC) for the Upper Colorado River Basin. AWC is the amount of water that a soil can hold, and is between a soil’s field capacity and the wilting point. In Soil-Water Balance model recharge simulations, AWC is multiplied by root zone depth to define the maximum water capacity of a cell, and any soil-moisture exceeding this amount is converted... Tags: Arizona, California, Colorado, NSDI, Nevada, All tags... New Mexico, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wyoming, environment, geoscientificInformation, groundwater, groundwater recharge, inlandWaters, inlandWaters, soil-water balance, Fewer tags Input Digital Datasets for the Soil-Water Balance Groundwater Recharge Model of the Upper Colorado River Basin These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. The Colorado River and its tributaries supply water to more than 35 million people in the United States and 3 million people in Mexico, irrigating more than 4.5 million acres of farmland, and generating about 12 billion kilowatt hours of hydroelectric power annually. Planning for the sustainable management of the Colorado River in future climates requires an understanding of the Upper Colorado River Basin groundwater system. The... Tags: Arizona, California, Colorado, DCHP, Daymet, All tags... NSDI, Nevada, New Mexico, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wyoming, environment, geoscientificInformation, groundwater, groundwater recharge, inlandWaters, inlandWaters, soil-water balance, Fewer tags MODFLOW-2005 Models used to Simulate Effects of Pumping in the Death Valley Regional Groundwater Flow System, Nevada and California—Selected Management Scenarios Projected to 2120 A three-dimensional, groundwater-flow model developed by Halford and Jackson (https://doi.org/10.3133/pp1863) was used to simulate effects of future (2020—2120) groundwater pumping on water levels and natural discharges in the Alkali Flat–Furnace Creek Ranch (AFFCR), Ash Meadows, Pahute Mesa–Oasis Valley (PMOV), and Pahrump to Death Valley South (PDVS) groundwater basins, southern Nevada and California. Four pumping scenarios were simulated, including a base case and scenarios A, B, and C. Scenarios were simulated from 1913 to 2120, with historical pumping occurring from 1913 to 2010, historical 2010 pumping rates projected from 2010 to 2020, and scenario pumping beginning in 2020. The base case projected 2010 pumping... Tags: Amargosa Desert, Amargosa River, Ash Meadows, California, Clark County, All tags... Death Valley, Furnace Creek, Furnace Creek Ranch, Groundwater, Groundwater Model, Inyo County, Lincoln County, MODFLOW, MODFLOW-2005, NSDI, Nevada, Nevada Test Site, Nye County, Pahrump Valley, San Bernardino County, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, usgsgroundwatermodel, Fewer tags Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: Average Annual Daily Maximum Temperature, 2002 These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the average monthly maximum temperature in Celsius multiplied by 100 for 2002 compiled for every catchment of NHDPlus for the conterminous United States. The source data were the Near-Real-Time High-Resolution Monthly Average Maximum/Minimum Temperature for the Conterminous United States for 2002 raster dataset produced by the Spatial Climate Analysis Service at Oregon State University. The NHDPlus Version... Tags: Average monthly maximum temperature, CALI, COGB, California, Catchment, All tags... Conterminous United States, GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB1, MRB2, MRB3, MRB4, MRB5, MRB6, MRB7, MRB8, Major River Basin, Missouri, NAWQA, NEMA, NHDPlus, NSDI, New England and Mid-Atlantic, PANW, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, Fewer tags Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Nutrient Ecoregions, 2002 These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This tabular data set represents the area of each level 3 nutrient ecoregion in square meters compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data are from the 2002 version of the U.S. Environmental Protection Agency's (USEPA) Aggregations of Level III Ecoregions for National Nutrient Assessment & Management Strategy (USEPA, 2002). The MRB_E2RF1 catchments are based on... Tags: CALI, COGB, California, Catchment, Conterminous United States, All tags... GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Level 3 Nutrient Ecoregions, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB1, MRB2, MRB3, MRB4, MRB5, MRB6, MRB7, MRB8, MRB_E2RF1, MRB_E2RF1WS, Major River Basins, Missouri, NAWQA, NEMA, NSDI, New England and Mid-Atlantic, PANW, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, Fewer tags Attributes for MRB_E2RF1 Catchments by Major River Basins in the Conterminous United States: Level 3 Ecoregions These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This tabular data set represents the estimated area of level 3 ecological landscape regions (ecoregions), as defined by Omernik (1987), compiled for every MRB_E2RF1 catchment of the Major River Basins (MRBs, Crawford and others, 2006). The source data set is Level III Ecoregions of the Continental United States (U.S. Environmental Protection Agency, 2003). The MRB_E2RF1 catchments are based on a modified version of the U.S. Environmental... Tags: CALI, COGB, California, Catchment, Conterminous United States, All tags... GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Level 3 Ecoregions, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB1, MRB2, MRB3, MRB4, MRB5, MRB6, MRB7, MRB8, MRB_E2RF1, MRB_E2RF1WS, Major River Basins, Missouri, NAWQA, NEMA, NSDI, New England and Mid-Atlantic, PANW, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, Fewer tags Captures and Trapping Effort for Deer Mice (Peromyscus sonoriensis) at Point Reyes National Seashore, California, USA from 2021 to 2022 These data represent trapping effort and captures of deer mice at Point Reyes National Seashore, Marin County, California. Deer mice were captured and marked with ear tags to allow identification of individuals. The location of captures can be used in a spatially explicit capture recapture model to estimate density of mice and how mouse density varies by site and habitat type. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: California, Ecology, Marin County, Point Reyes National Seashore, USGS Science Data Catalog (SDC), All tags... Wildlife Biology, biota, ecology, mammals, modeling, population and community ecology, restoration, Fewer tags MODFLOW-OWHM model used to simulate groundwater flow and evaluate storage in the Lucerne Valley Groundwater Basin, California A three-dimensional groundwater flow model, MODFLOW-OWHM, was developed to provide a better understanding of the hydrogeology of the Lucerne Valley Groundwater Basin, California. The model was used to investigate the historical groundwater storage loss and subsidence associated with anthropogenic groundwater demands. The model was calibrated to 1942 through 2016 conditions. This USGS data release contains all of the input and output files for the simulation described in the associated model documentation report https://doi.org/10.3133/sir20225048 Tags: California, Farm Processes, Groundwater Model, Hydrology, InlandWaters, All tags... Lucerne Valley, Lucerne Valley Groundwater Basin, MODFLOW-OWHM, PEST++, Python, San Bernardino County, USGS Science Data Catalog (SDC), Water Resources, environment, geoscientificInformation, groundwater, inlandWaters, usgsgroundwatermodel, Fewer tags Total monthly water withdrawals for public supply by 12-digit hydrologic unit in the conterminous United States for 2015 This dataset presents the total estimated monthly public-supply water withdrawal by 12-digit hydrologic unit code (HUC12) in the conterminous United States for 2015. Public-supply water use was estimated by spatially and temporally downscaling available data from each state. The total represents combined groundwater and surface water withdrawals for 83,178 watersheds. Public supply refers to water withdrawn by public and private water suppliers that provide water for cities, towns, rural water districts, mobile-home parks, Native American Indian reservations, and military bases. Public-supply facilities are classified under the Standard Industrial Classification (SIC) 4941 and provide water to at least 25 people... Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags... Connecticut, Conterminous United States, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, USGS Science Data Catalog (SDC), Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, community water system, drinking water, groundwater, public supply, surface water, water availability, water budget, water supply and demand, water use, water withdrawal, Fewer tags Climate, Wildfire, and Erosion Data, Western US These data were used to examine how post-fire sedimentation might change in western USA watersheds with future fire from the decade of 2001-10 through 2041-50. The data include previously published projections (Hawbaker and Zhu, 2012a, b) of areas burned by future wildfires for several climate change scenarios and general circulation models (GCMs) that we summarized for 471 watersheds of the western USA. The data also include previously published predictions (Miller et al., 2011) of first year post-fire hillslope soil erosion from GeoWEPP that we summarized for 471 watersheds of the western USA. We synthesized these summarized data in order to project sediment yield from future fires for 471 watersheds through the... Categories: Data; Types: Citation; Tags: A1B emission scenario, A2 emission scenario, Annual Post-fire Sediment Yield, Arizona, Average Burned Area, All tags... B1 emission scenario, Burned area projections, California, Climate Change, Colorado, Decadal summaries, Erosion, First year post-fire, Future post-fire sediment yield, Future wildfires, GCM, GIS-based erosion model, General circulation model, HUC, HUC8, Hillslope soil erosion rates, Hydrologic unit code, Idaho, Montana, Nevada, New Mexico, Oregon, Post-fire, Projected watershed sediment yield, Sediment, Sediment yield, Simulations, USGS Science Data Catalog (SDC), Utah, Washington, Watershed sediment yield estimates, Watersheds, Western US, Wildfire perimeters, Wildfires, Fewer tags Groundwater-Quality Data in the Tulare Shallow Aquifer Study Unit, 2014-2015: Results from the California GAMA Priority Basin Project The U.S. Geological Survey collected groundwater samples from 95 domestic wells in Tulare and Kings Counties, California in 2014-2015. The wells were sampled for the Tulare 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 drinking water supply. Domestic wells commonly are screened at shallower depths than are public-supply wells. The Tulare Shallow Aquifer Study Unit includes the Kaweah, Tule, and Tulare Lake subbasins of the San Joaquin Valley groundwater basin and adjacent areas of the Sierra Nevada. The study unit was divided... Categories: Data; Tags: California, Environment, GAMA, Groundwater, Groundwater Ambient Monitoring and Assessment Program, All tags... Hydrogeology, Kings County, Southern San Joaquin Valley, Tulare County, Tule County, USGS Science Data Catalog (SDC), United States, Water-Quality, Western United States, 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 Demographic Parameter Estimates for San Francisco Gartersnakes (Thamnophis sirtalis tetrataenia) for Fitting an Integral Projection Model A study comparing reintroduction scenarios for the San Francisco gartersnake (Thamnophis sirtalis tetrataenia), an endangered subspecies native to San Mateo County and Santa Cruz County in northern California. Models for snake survival, growth, fecundity, and reproductive status were used to construct a demographic population model. Data are posterior distributions for demographic parameters from Markov Chain Monte Carlo sampling in hierarchical Bayesian models. These data support the following publication: Rose, J.P., Kim, R., Schoening, E.J., Lien, P.C., and Halstead, B.J., 2023. Comparing reintroduction strategies for the endangered San Francisco gartersnake (Thamnophis sirtalis tetrataenia) using demographic... Categories: Data; Tags: California, San Mateo County, USGS Science Data Catalog (SDC), Wildlife Biology, biota, All tags... ecology, modeling, population dynamics, reptiles, Fewer tags DS796 California Groundwater Units These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. The California Groundwater Units dataset classifies and delineates the State into one of three groundwater based polygon units: (1) those areas defined as alluvial groundwater basins or sub-basins (DWR, 2002), (2) highland areas that are adjacent to and topographically upgradient of groundwater basins, and (3) highland areas not associated with any groundwater basin. In total, 938 Groundwater Units are represented. The Groundwater... Tags: California, GAMA, Groundwater, Groundwater Ambient Monitoring Assessment Program, Groundwater basin, All tags... Highland areas, NSDI, USGS Science Data Catalog (SDC), United States, Western United States, environment, geoscientificInformation, inlandWaters, Fewer tags Land Cover Information for the Upper Colorado River Basin in Daymet Climate Data resolution (nlcd_UCRB_daymet_resolution.txt) These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. nlcd_UCRB_daymet_resolution.txt is an Esri ASCII grid representing land cover information for the Upper Colorado River Basin. The 2011 National Land Cover Database (NLCD) was used to characterize land cover in the UCRB study area. Tags: Arizona, California, Colorado, NSDI, Nevada, All tags... New Mexico, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wyoming, environment, geoscientificInformation, groundwater, groundwater recharge, inlandWaters, inlandWaters, land cover, Fewer tags Land Cover Information for the Upper Colorado River Basin in Maurer et al. (2002) Climate Data resolution (nlcd_UCRB_Maurer_resolution.asc) These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. nlcd_UCRB_Maurer_resolution.asc is an Esri ASCII grid representing land cover information for the Upper Colorado River Basin. The 2011 National Land Cover Database (NLCD) was used to characterize land cover in the UCRB study area. Tags: Arizona, California, Colorado, NSDI, Nevada, All tags... New Mexico, USGS Science Data Catalog (SDC), Upper Colorado River Basin, Utah, Wyoming, environment, geoscientificInformation, groundwater, groundwater recharge, inlandWaters, inlandWaters, land cover, Fewer tags Attributes for NHDPlus Catchments (Version 1.1) for the Conterminous United States: 30-Year Average Annual Precipitation, 1971-2000 These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the 30-year (1971-2000) average annual precipitation in millimeters multiplied by 100 compiled for every catchment of NHDPlus for the conterminous United States. The source data were the "United States Average Monthly or Annual Precipitation, 1971 - 2000" raster dataset produced by the PRISM Group at Oregon State University. The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets... Tags: 30-year average annual precipitation, CALI, COGB, California, Catchment, All tags... Conterminous United States, GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB1, MRB2, MRB3, MRB4, MRB5, MRB6, MRB7, MRB8, Major River Basin, Missouri, NAWQA, NEMA, NHDPlus, NSDI, New England and Mid-Atlantic, PANW, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), elevation, geoscientificInformation, inlandWaters, Fewer tags Attributes for MRB_E2RF1 Catchments in Selected Major River Basins of the Conterminous United States: Contact Time, 2002 These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This tabular data set represents the average contact time, in units of days, compiled for every MRB_E2RF1 catchment of Major River Basins (MRBs, Crawford and others, 2006). Contact time, as described in Vitvar and others (2002), is defined as the baseflow residence time in the subsurface. The source data set was the U.S. Geological Survey's (USGS) 1-kilometer grid for the conterminous United States (D.M. Wolock, U.S. Geological Survey,... Tags: CALI, California, Catchment, Contact time, Conterminous United States, All tags... GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB2, MRB3, MRB4, MRB5, MRB7, MRB8, MRB_E2RF1, MRB_E2RF1WS, Major River Basins, Missouri, NAWQA, NSDI, PANW, PANW, Pacific Northwest, Pacific Northwest, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, Fewer tags Attributes for NHDPlus Catchments (Version 1.1) in the Conterminous United States: Bedrock Geology These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set represents the area of bedrock geology types in square meters compiled for every catchment of NHDPlus for the conterminous United States. The source data set is the "Geology of the Conterminous United States at 1:2,500,000 Scale--A Digital Representation of the 1974 P.B. King and H.M. Beikman Map" (Schuben and others, 1994). The NHDPlus Version 1.1 is an integrated suite of application-ready geospatial datasets that... Tags: Bedrock Geology, CALI, COGB, California, Catchment, All tags... Conterminous United States, GLMR, Great Lakes, Ohio, Upper Mississippi, and Souris-Red-Rainy, Inlandwaters, LMTG, Lower Mississippi, Arkansas-White-Red, and Texas-Gulf, MORI, MRB, MRB1, MRB2, MRB3, MRB4, MRB5, MRB6, MRB7, MRB8, Major River Basin, Missouri, NAWQA, NEMA, NHDPlus, NSDI, New England and Mid-Atlantic, PANW, Pacific Northwest, Rio Grande, Colorado, and Great Basin, SAGT, SPARROW, South Atlantic-Gulf and Tennessee, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, Fewer tags 1 2 3 4 5 ... 10 »