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Boundary extent for datasets of regolith thickness, bedrock altitude, depth to water, potentiometric-surface altitude, and saturated thickness for the shallow groundwater system in the Lower Gunnison River Basin, Colorado This dataset consists of the boundary extent used to evaluate regolith thickness, bedrock altitude, depth to water, potentiometric-surface altitude, and saturated thickness for the shallow groundwater system in the Lower Gunnison River Basin, in Delta, Montrose, Ouray, and Gunnison Counties, Colorado. The U.S. Geological Survey prepared this dataset in cooperation with the Colorado Water Conservation Board. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Delta, Gunnison, Montrose, Ouray, All tags... Uncompahgre, boundary, extent, groundwater, inlandWaters, Fewer tags Environmental and Quality-Control Data Collected by the USGS National Water-Quality Assessment Project for Hormones and Pharmaceuticals in Groundwater Used as a Source of Drinking Water Across the United States, 2013-15 This data set includes results for hormone and pharmaceutical compounds analyzed in environmental and quality-control samples collected by the USGS National Water-Quality Assessment Project during 2013 through 2015 for a study of groundwater resources used for drinking-water supply across the United States. Hormone and pharmaceutical results are provided for environmental samples collected at 1,120 wells or springs; selected ancillary data, such as principal aquifer, well depth, and land-use information also are provided for the sampled sites. The types of quality-control samples included in this data set are blanks, matrix spikes, and replicates collected at field sites or field offices. Included in this data... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Cycle 3, Drinking water, Environmental Health, Groundwater, Hormones, All tags... Human health, NAWQA, National Water Quality Program, Pharmaceuticals, USGS Science Data Catalog (SDC), United States, Water Quality, Water quality, Fewer tags Data for the occurrence and distribution of strontium in U.S. groundwater Water-quality data for groundwater samples collected from 4,824 sites between 1991 through 2018, and ancillary data and information on sampled wells and principal aquifers, were used to assess the occurrence and distribution of strontium in U.S. groundwater from 32 principal aquifers. This data release includes one tab-delimited text file detailing these data. Table: Chemical data from the U.S. Geological Survey National Water Information System and ancillary data considered for assessment of strontium concentration in U.S. groundwater. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, NAWQA, USGS Science Data Catalog (SDC), Water Quality, cycle 3, All tags... drinking water, groundwater, strontium, water quality, Fewer tags Climate change and Tribal Ecological Knowledge Summer Internship Presentation The Quartz Valley Indian Reservation will partner with tribes, federal agencies and higher education institutions in the Klamath Basin on a tribal youth intern program for the summer of 2014. This program will build on current efforts to integrate western science and TEK for climate change planning and adaptation in the Klamath Basin. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, California, Climate change, Conservation Design, Conservation Planning, All tags... Federal resource managers, Great Basin LCC, Klamath Basin, Klamath Basin, Klamath Basin Tribal Youth Program, Klamath River, LCC Network Science Catalog, NPLCC, OR-2, Oregon, Traditional Ecological Knowledge, Traditional Ecological knowledge, Tribes, aquatic habitat, climate change, completed, cultural resources, groundwater, onGoing, product, restoration, thermal refugia, traditional ecological knowledge, Fewer tags Final Report: Cultural Adaptation Through Traditional Ecological Knowledge and Climate Change The Quartz Valley Indian Reservation will partner with tribes, federal agencies and higher education institutions in the Klamath Basin on a tribal youth intern program for the summer of 2014. This program will build on current efforts to integrate western science and TEK for climate change planning and adaptation in the Klamath Basin. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Academics & scientific researchers, California, Climate change, Conservation Design, Conservation Planning, All tags... Federal resource managers, Great Basin LCC, Klamath Basin, Klamath Basin, Klamath Basin Tribal Youth Program, Klamath River, LCC Network Science Catalog, NPLCC, OR-2, Oregon, Traditional Ecological Knowledge, Traditional Ecological knowledge, Tribes, aquatic habitat, climate adaptation, climate change, completed, cultural resources, groundwater, product, restoration, thermal refugia, traditional ecological knowledge, Fewer tags Data for Tritium deposition in precipitation in the United States, 1953 - 2023 (ver. 2.0, May 2023) This data release documents three Microsoft Excel tables (and corresponding comma separated data files) that contain estimates of tritium in precipitation data for the continental United States. Versions of this data release contain additional tritium data for more recent years. The current version has tritium data through 2022. Table 1 contains estimates of tritium in precipitation for precipitation stations located in the continental United States. Measured precipitation data are formatted in regular font while correlated data are italicized. Table 2 contains tritium in precipitation for ninety-six 2-degree latitude by 5-degree longitude quadrangles covering the continental U.S. Latitudes are north of the equator... Categories: Data, Data Release - In Progress; Tags: Tritium, USGS Science Data Catalog (SDC), continental United States, groundwater, groundwater age, All tags... precipitation, tracers, water quality, Fewer tags Seepage investigation and dye tracing to characterize base flow stream behavior in Big Creek watershed, Newton County, Arkansas This data release pertains to a seepage investigation and dye tracing study conducted in the Big Creek watershed of Newton County, Arkansas. The seepage dataset includes geospatial files of discharge measurement points and zero-flow observations along with vector lines delineating losing and gaining stream reaches. The dye tracing dataset consists of geospatial files of monitoring sites, dye injection location, and dye flow paths. Hydrologic systems in karst environments have a high degree of interconnectivity between surface water and groundwater systems. Because of this interconnectivity, activities which occur on the surface in karst environments have a direct impact on the water quality and quantity of karst... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Downloadable, Map Service; Tags: Arkansas, Big Creek, Buffalo National River, Buffalo River, Hydrology, All tags... Left Fork Big Creek, Newton County, Ozarks, USGS Science Data Catalog (SDC), Water Resources, dye tracing, fluorescent dye, freshwater ecosystems, groundwater, groundwater, groundwater and surface-water interaction, groundwater tracing, hydrogeology, karst, karst, karst areas, karst hydrology, seepage investigation, seepage run, seepage studies, springs (hydrographic), Fewer tags Machine-learning model predictions and rasters of arsenic and manganese in groundwater in the Mississippi River Valley alluvial aquifer Groundwater from the Mississippi River Valley alluvial aquifer (MRVA) is a vital resource for agriculture and drinking-water supplies in the central United States. Water availability can be limited in some areas of the aquifer by high concentrations of trace elements, including manganese and arsenic. Boosted regression trees, a type of ensemble-tree machine-learning method, were used to predict manganese concentration and the probability of arsenic concentration exceeding a 10 µg/L threshold throughout the MRVA. Explanatory variables for the BRT models included attributes associated with well location and construction, surficial variables (such as hydrologic position and recharge), variables extracted from a MODFLOW-2005... Categories: Data; Tags: Arkansas, Geochemistry, Hydrology, Illinois, Kentucky, All tags... Louisiana, Mississippi, Missouri, Tennessee, USGS Science Data Catalog (SDC), Water Quality, aquifer, boosted regression tree, groundwater, groundwater quality, machine learning, mathematical modeling, Fewer tags Geochemical and Geospatial Data for Per- and Polyfluoroalkyl Substances (PFAS) in Groundwater Used as a Source of Drinking Water in the Eastern United States Concentrations of inorganic constituents, dissolved organic carbon (DOC), tritium, per- and polyfluoroalkyl substances (PFAS), volatile organic compounds (VOCs), and pharmaceuticals were measured in groundwater samples collected from 254 wells in 2019 and 2020. Concentrations of inorganic constituents, DOC, VOCs, and pharmaceuticals were measured at the U.S. Geological Survey (USGS) National Water Quality Laboratory in Lakewood, Colorado. Concentrations of tritium were measured at the USGS Tritium Laboratory in Menlo Park, California. Concentrations of PFAS were measured at SGS Laboratory in Orlando, Florida. In addition, several geospatial parameters were determined, including: percentages of selected land uses... Categories: Data; Tags: Alabama, Florida, Georgia, Hydrology, Illinois, All tags... Indiana, Kentucky, Maine, Massachusetts, Mississippi, NAWQA, New Hampshire, Ohio, PFAS, Pennsylvania, Rhode Island, South Carolina, Tennessee, USGS Science Data Catalog (SDC), Water Quality, West Virginia, cycle 3, groundwater, Fewer tags Distribution Models Predicting Groundwater Influenced Ecosystems in the Northeastern United States Globally, groundwater dependent ecosystems (GDEs) are increasingly vulnerable to groundwater extraction and land use practices. Groundwater supports these ecosystems by providing inflow, which can maintain water levels, water temperature, and chemistry necessary to sustain the biodiversity that they support. Many aquatic systems receive groundwater as a portion of base flow, and in some systems (e.g., springs, seeps, fens) the connection with groundwater is significant and important to the system’s integrity and persistence. Groundwater management decisions for human use may not consider ecological effects of those actions on GDEs, which rely on groundwater to maintain ecological function. This disconnect between... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Ecology, Hydrology, Land Use Change, New England, Remote Sensing, All tags... USGS Science Data Catalog (SDC), Water Resources, Wildlife Biology, groundwater, groundwater influenced ecosystems, imageryBaseMapsEarthCover, modeling, northeastern United States, northeastern states, prediction, Fewer tags Percentage of Hypothetical Well Pumpage Causing Depletions to Simulated Base Flow, Evapotranspiration, and Groundwater Storage in the Elkhorn and Loup River Basins, 2011 through 2060 This data release includes a polygon shapefile of grid cells attributed with values representing the simulated base-flow, evapotranspiration, and groundwater-storage depletions as a percentage of hypothetical well pumpage for the 2011-2060 time period. Depletions were simulated by the Phase-Three Elkhorn-Loup Model (ELM), constructed using MODFLOW-NWT (Niswonger and others, 2011). Each polygon represents one model grid cell, with pumping specified from either layer one or layer two of the model. All values are estimates and approximations. The phase three ELM simulated the High Plains aquifer in north-central Nebraska from predevelopment (pre-1895) through 2060 (Flynn and Stanton, 2018). The simulation was calibrated... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Calamus River, Dismal River, Elkhorn River, Loup River, Middle Loup RIver, All tags... Nebraska, North Loup River, Sand Hills, South Loup River, evapotranspiration, geohydrology, geoscientificInformation, groundwater, groundwater availability, groundwater irrigation, hydrologic models, inlandWaters, streamflow depletion, Fewer tags Airborne EM, magnetic, and radiometric survey data Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired in late February to early March 2018 along 2,364 line-kilometers in the Shellmound, Mississippi study area. Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. RESOLVE frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects... Categories: Data; Tags: GGGSC, Geology, Geophysics, and Geochemistry Science Center, Greenwood, Leflore County, MRVA, All tags... Mississippi, Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Sunflower County, Tallahatchie River, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, magnetic anomaly maps, magnetic field, magnetics, radiometrics, resistivity, water resources, Fewer tags Natural Resource Condition Assessments What are current conditions for important park natural resources? What are the critical data and knowledge gaps? What are some of the factors that are influencing park resource conditions? Natural Resource Condition Assessments (NRCAs) evaluate and report on the above for a subset of important natural resources in national park units (hereafter, parks). Focal study resources and indicators are selected on a park-by-park basis, guided by use of structured resource assessment and reporting frameworks. Considerations include park resource setting and enabling legislation (what are this park's most important natural resources?) and presently available data and expertise (what can be evaluated at this time?). In addition... Categories: Data; Types: ArcGIS REST Map Service, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Chihuahuan Desert, English, GIS, Madrean, Mojave Desert, All tags... Sonoran Desert, US, agriculture, amphibian, assessment, biodiversity, bird, climate, connectivity, contamination, development, ecoregion, endangered, energy, erosion, fire, grassland, grazing, groundwater, invasive, inventory, invertebrate, land cover, mammal, management, map, mining, model, monitoring, oil, plant, priority, protected area, rare, recreation, renewable, reptile, research, riparian, river, road, scrub, shrub, soil, spring, stream, threat, threatened, topography, vegetation, vulnerability, water, watershed, wetland, wildlife, Fewer tags Report and Publications: Assessing Evapotranspiration Rate Changes for Proposed Restoration of the Forested Uplands of the DLCC Final Report - Executive Summary: This final project report is prepared to summarize the research project titled “Assessing evapotranspiration rate changes for proposed restoration of the forested uplands of the Desert Landscape Conservation Cooperatives (LCC)” for the Desert LCC of the Bureau of Reclamation as a requirement for closing out the project. This report includes the scope of work, summary of research project, results, and conclusions.Among all of the components of the terrestrial water cycle, evapotranspiration (ET) consumes the largest amount of water. Accurate estimation of ET is very important to understand the influence of ET to the hydrologic response of recharge and runoff processes in the water... Categories: Data, Publication; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 2012, ATMOSPHERE, ATMOSPHERE, ATMOSPHERIC WATER VAPOR, ATMOSPHERIC WATER VAPOR, All tags... AZ-01, Applications and Tools, Arizona, Datasets/Database, EARTH SCIENCE, EARTH SCIENCE, EVAPOTRANSPIRATION, EVAPOTRANSPIRATION, Federal resource managers, LCC Network Science Catalog, Northern Arizona, Publication, Publication, Publication, Report, United States, WATER VAPOR PROCESSES, WATER VAPOR PROCESSES, adaptation, best management practice (BMP), biota, climate change, completed, drought, ecosystem services, fire, forest, groundwater, hydrology, land cover, management, model, native, plant, product, remote sensing, resilience, restoration, snow, soil, topography, vegetation, water availability, water budget, watershed, Fewer tags Statistical Analysis of Water Level Records in the Mississippi River Valley Alluvial Aquifer in Missouri from the Missouri Department of Natural Resources' Well Information Management System (WIMS) This data set consists of the results of the statistical analysis (Asquith and others, 2020) of the remaining 10,295 water level records that met specific criteria to ensure that the water level records were representative of true groundwater conditions in the Mississippi River Valley alluvial aquifer. The data are provided in a CSV file named StatisticalAnalysis.csv, and in the Environmental Systems Research Institute (ESRI) shapefile format consisting of a group of files that have been compressed into a zip archive named StatisticalAnalysis.zip. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: groundwater, groundwater level, wells AEM inverted resistivity models Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. Resolve frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that... Categories: Data; Tags: Arkansas, Bayou Bartholomew, Bayou Meto, Boeuf River, Cache River, All tags... Coldwater River, Crowley's Ridge, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, L'Anguille River, Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, Saint Francis River, Tallahatchie River, Tennessee, WAUSP, Water Availability and Use Science Program, Yazoo River, aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, magnetic field, magnetics, radiometrics, resistivity, water resources, Fewer tags Processed ground-based EM survey data Shallow soil characteristics were mapped near Shellmound, Mississippi, using the DualEM 421 electromagnetic sensor in October 2018. Data were acquired by towing the DualEM sensor on a wheeled cart behind an ATV, with the sensor at a height of 0.432 meters (m) above the ground surface. Approximately 175 line-kilometers of data were acquired over an area of nearly four square kilometers, with 25 m separation between survey lines. Data were manually edited for noise sources such as powerlines or other buried structures, and averaged to regular output soundings every 5 m along survey lines. This data release contains the processed data that have been averaged and culled to produce final resistivity models. Digital data... Categories: Data; Tags: GGGSC, Geology, Geophysics, and Geochemistry Science Center, Leflore County, MRVA, Mississippi, All tags... Mississippi Alluvial Plain, Mississippi River Valley Alluvial aquifer, Shellmound, Tallahatchie River, electromagnetic surveying, electromagnetics, engineering sciences, environment, geophysics, geoscientificInformation, groundwater, hydrogeology, resistivity, water resources, Fewer tags Model subareas and moisture zones used in a sensitivity analysis of a water-budget model completed in 2022 for the island of Oahu, Hawaii A sensitivity analysis of groundwater-recharge estimates from a water-budget model was completed for the islands of Oahu and Maui, Hawaii (Johnson and others, 2023). Results of the sensitivity analysis were used to quantify the relative importance of selected model parameters to recharge estimates for three moisture zones (dry, mesic, and wet) on Oahu and Maui. This shapefile contains the boundaries of the moisture zones and boundaries of the model subareas that were used in the model simulations for Oahu. The shapefile attribute information includes the names of the land-cover types assigned to model subareas and the mean annual recharge values determined for the model subareas for the baseline scenario of the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Hawaii, Oahu, Pacific Islands, biota, boundaries, All tags... climatologyMeteorologyAtmosphere, environment, geoscientificInformation, groundwater, inlandWaters, land use and land cover, water budget, water cycle, Fewer tags Gravity station data, middle Carson River basin, Nevada (from U.S. Geological Survey Scientific Investigations Report 2011-5055, figure 7) This dataset consists of point gravity station data for 95 stations in the middle Carson River basin as published on figure 7 in the U.S. Geological Survey Scientific Investigations Report 2011-5055. The points have values of the complete Bouguer anomaly and observed gravity. In addition, 641 selected gravity stations from the U.S. Geological Survey Data Series 42 titled "Gravity data of Nevada" used in this study are included for reference and users are advised to reference that publication for information on those data. Reference cited Ponce, D.A., 1997, Gravity data of Nevada: U.S. Geological Survey Data Series 42, 27 p., https://doi.org/10.3133/ds42. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Basin 101, Basin 102, Basin 103, Basin 104, Basin 105, All tags... Carson Desert, Carson River, Carson River Region, Carson Valley, Churchill Valley, Dayton Valley, Eagle Valley, Hydrographic Region 8, Middle Carson River Basin, Nevada, bouguer anomaly, geophysics, geoscientificInformation, gravitational field (earth), groundwater, inlandWaters, permeability, Fewer tags Estimated thickness of unconsolidated basin-fill sediments, middle Carson River basin, Nevada (from U.S. Geological Survey Scientific Investigations Report 2011-5055, figure 9) This dataset consists of polyline estimates of the thickness of basin-fill sediments at 200-foot contour intervals for the middle Carson River basin as published on figure 9 in the U.S. Geological Survey Scientific Investigations Report 2011-5055. The estimates were made using gravity data collected at 736 stations in the middle Carson River basin reduced to a residual complete Bouguer anomaly. A relation between residual gravity and depth to bedrock was developed from descriptions on drillers logs of 25 wells that encountered bedrock. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Basin 101, Basin 102, Basin 103, Carson Desert, Carson River, All tags... Carson River Region, Churchill Valley, Dayton Valley, Hydrographic Region 8, Middle Carson River basin, Nevada, bedrock geologic units, bouguer anomaly, geophysics, geoscientificInformation, gravitational field (earth), groundwater, inlandWaters, permeability, stratigraphic thickness, Fewer tags 1 2 3 4 5 ... 42 »