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Location Folder Show Tree ROOT _ScienceBase Catalog __USGS Data Release Products 09471143 - Walnut Gulch below ARS Flume 6, near Tombstone, AZ - 07/28/2017 Flow Event Data 12-digit hydrologic unit outlet (pour) points for the NHDPlus V2.1 WBD snapshot 1992 digital surface model and orthomosaic of Malakoff Diggins State Historic Park, California 2010-2017 zooplankton data from whole water-column tows in Lakes Michigan and Huron 2013 East Bay Seismic Experiment (EBSE) -- Implosion Data, Hayward, Calif 2015 Hydrologic and soil data collected in limestone cedar glades at Stones River National Battlefield, Tennessee 2015 Sample Data Release 2016 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes 2017 One-Year Seismic Hazard Forecast for the Central and Eastern United States from Induced and Natural Earthquakes 2017 Thermal Infrared Mosaics: Mississippi River Navigation Pool 8 2018 Eastern Lake Erie Shoreline 4-Band Mosaics and Orthophotos 2019 Katahdin Woods and Waters National Monument 4-Band Imagery Products 2020 Aquatic Areas - Upper Mississippi River System 22 years of aquatic plant spatiotemporal dynamics in the Upper Mississippi River - derived spatial data (Pools 4, 8, and 13) A bathymetric terrain model of multibeam sonar data collected between 2005 and 2018 along the Queen Charlotte Fault System in the Eastern Gulf of Alaska from Cross Sound, Alaska to Queen Charlotte Sound, Canada A comparison of pan trap and hand net bee collection methods at Badlands National Park, South Dakota, 2012 A comprehensive inventory of maximum glacial extent in Glacier National Park during the peak of the Little Ice Age A GIS compilation of vector shorelines and coastal bluff edge positions, and associated rate-of-change data for Barter Island, Alaska A GIS Compilation of Vector Shorelines and Shoreline Classification for Puerto Rico from 1970 and 2010 A GIS Compilation of Vector Shorelines for Puerto Rico from 2015 to 2018 A Multiscale Index of Landscape Intactness for the Western United States A national dataset of rasterized building footprints for the U.S. Aboveground Mangrove Biomass Data Collected from and Species Dominance Maps of Pohnpei, Federated States of Micronesia Accuracy of Rapid Crop Cover Maps of Conterminous United States for 2008 - 2016 Acoustic Doppler current profiler velocity and discharge measurements collected in and near the lock chamber of Brandon Road Lock and Dam, Joliet, Illinois, USA in December 2014 Acoustic Doppler current profiler velocity data collected in the approach channel of Brandon Road Lock and Dam in 2015 Acoustic Doppler current profiler velocity data collected in the Chicago Sanitary and Ship Canal in 2010 and 2011 in support of the interbasin transport study for invasive Asian carp Acoustic, Spatial, and Sediment Size Data Collected on the Upper Colorado River to Estimate the Flushing Flows, Colorado, 2019 Active Layer Data from the Yukon River Basin in Alaska and Canada Additional Mapping Tools for Great Basin Wildfire and Conifer Management to Increase Operational Resilience: Integrating Sagebrush Ecosystem and Sage-grouse Response Adirondack Inventory & Monitoring (AIM) Network Volume 1 (2021 - 2023) Aerial imagery and ground control points collected during an uncrewed aerial systems (UAS) survey at Plum Island Estuary and Parker River NWR (PIEPR), November 14, 2017 and March 28, 2019 Aerial imagery and other remotely-sensed data from a UAS survey of Pepperwood Preserve, Sonoma County, CA Aerial imagery and photogrammetric products from unmanned aerial systems (UAS) flights over the Lake Ontario shoreline at Braddock Bay, New York, July 10 to 11, 2017 Aerial imagery and photogrammetric products from unmanned aerial systems (UAS) flights over the Lake Ontario shoreline at Chimney Bluffs, New York, July 14, 2017 Aerial imagery and photogrammetric products from unmanned aerial systems (UAS) flights over the Lake Ontario shoreline at Sodus Bay, New York, July 12 to 14, 2017 Aerial imagery and structure-from-motion data products from a UAS survey of the Los Padres Reservoir delta, Carmel River valley, CA, 2017-11-01 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Lone Tree Point, Kiket Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Post Point, Bellingham Bay, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at Puget Creek and Dickman Mill Park, Tacoma, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at West Whidbey Island, WA, June 2019 Aerial imagery and structure-from-motion data products from UAS surveys of the beaches at Fort Stevens State Park, OR, and Cape Disappointment State Park, WA Aerial imagery and structure-from-motion derived data products from UAS survey of the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, October 2018 Aerial imagery and structure-from-motion-derived shallow water bathymetry from a UAS survey of the coral reef off Waiakane, Molokai, Hawaii, June 2018 Aerial Imagery collected during unoccupied aircraft systems (UAS) operations in Massachusetts and Maine between March 2018 - September 2018 Aerial imagery from unmanned aerial systems (UAS) flights and ground control points: Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018. Aerial Imagery, Benthic Macroinvertebrate, Topographic Survey, and Soil Survey datasets collected for a study of Effects of Culverts on the Natural Conditions of Streams in the East Gulf Coastal Plain of Alabama, 2010-2019 Aerial photogrammetry data and products of the North Carolina coast Aerial Photogrammetry Data and Products of the North Carolina coast: 2018-10-06 to 2018-10-08, post-Hurricane Florence Aerial thermal imagery of the Central Platte River Valley and bounding box annotations of sandhill cranes More... Filters Types (Less) Map Service (611) OGC WFS Layer (611) OGC WMS Layer (611) OGC WMS Service (611) Downloadable (65) Shapefile (36) Citation (28) Raster (25) GeoTIFF (24) ArcGIS REST Map Service (7) ArcGIS Service Definition (6) Data (5) NetCDF OPeNDAP Service (3) ArcGIS Map Package (1) View Results as: JSON ATOM CSV Browse Folder

Chemistry data from leachates of hydraulic fracturing proppants collected from southeastern New Mexico, 2018-2019 Proppants used during hydraulic fracturing of oil and gas wells are manufactured to maximize petroleum yield by controlling the size, shape, density, and strength of the proppant material. The most common types of proppants are mined silica sand and manufactured ceramics, some of which are further modified with organic resin coatings to improve performance. Much of the work on the environmental and human health effects of proppant releases into the environment has focused on occupational silicosis, with little attention given to the potential effects from the organic coatings on these materials. This oversight is especially relevant in the context of dumping of unwanted proppant on the land surface, which has been... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Energy Resources, Environmental Health, Geochemistry, New Mexico, USGS Science Data Catalog (SDC), All tags... chemical analysis, environment, geochemistry, geoscientificInformation, hydraulic fracturing, petroleum, Fewer tags Data used to evaluate arsenic and uranium occurrence in Connecticut groundwater through spatially weighted and bedrock geology assessments This data release contains two spatial datasets and a data table in support of an evaluation of arsenic and uranium occurrence in Connecticut groundwater through spatially weighted and bedrock geology assessments. Spatial datasets include 1) a shapefile of 130 equal-area grid cells with associated arsenic attribute data, and 2) a shapefile of 110 equal-area grid cells with associated uranium attribute data. The State of Connecticut was divided based on a set of randomized equal-area grid cells based on the method of Scott (1990); one grid was created for arsenic, with 130 grid cells, and one was created for uranium, with 110 grid cells. Arsenic and uranium attribute data associated with the equal-area grid cells... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, USGS Science Data Catalog (SDC), groundwater, water quality Model Archive Summary for Turbidity Derived Suspended-Sediment Concentrations at USGS Station 11336685; North Mokelumne River near Walnut Grove, California (2011 - 2015) Continuous 15-minute time-series suspended-sediment concentration (SSC) data computed from U.S. Geological Survey (USGS) instream turbidity data using a YSI 6-series multi-parameter water quality sonde for the North Mokelumne River near Walnut Grove, California, USGS station #11336685. A model archive summary describes the development of a continuous 15-minute SSC time-series regression model. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: California, Geomorphology, Hydrology, Mokelumne River, Sacramento-San Joaquin Delta, All tags... Sediment Transport, USGS, USGS Science Data Catalog (SDC), Water Quality, Water Quality, Water Resources, suspended-sediment concentration, Fewer tags Input data, trained model data, and model outputs for predicting streamflow and base flow for the Mississippi Embayment Regional Study Area using a random forest model This data release contains datasets developed for the purpose of training and applying random forest models to the Mississippi Embayment Regional Study Area. The random forest models are designed to predict total stream flow and baseflow as a function of a combination of watershed characteristics and monthly weather data. These datasets are associated with a report (SIR 2022-5079) and code contained in a USGS GitLab repository. The GitLab repository (https://code.usgs.gov/map/maprandomforest/) contains much more information about how these data may be used to supply predictions of stream flow and baseflow. Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Hydrology, USGS Science Data Catalog (SDC), Water Resources National-Scale Geophysical, Geologic, and Mineral Resource Data and Grids for the United States, Canada, and Australia: Data in Support of the Tri-National Critical Minerals Mapping Initiative National-scale geologic, geophysical, and mineral resource raster and vector data covering the United States, Canada, and Australia are provided in this data release. The data were compiled as part of the tri-national Critical Minerals Mapping Initiative (CMMI). The CMMI, established in 2019, is an international science collaboration between the U.S. Geological Survey (USGS), Geoscience Australia (GA), and the Geological Survey of Canada (GSC). One aspect of the CMMI is to use national- to global-scale earth science data to map where critical mineral prospectivity may exist using advanced machine learning approaches (Kelley, 2020). The geoscience information presented in this report include the training and evidential... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: ARDS, Alaska, Alaska Mineral Resource Data, Australia, Canada, All tags... Critical Minerals Mapping Initiative, GIS, Geographic Information Systems (GIS), Geological Survey of Canada, Geology, Geophysics, and Geochemistry Science Center, Geoscience Australia, MRDS, Mineral Resources Data System, Mineral Resources Program (MRP), Mississippi Valley-type deposits, Pb-Zn, U.S. Geological Survey (USGS), USGS Science Data Catalog (SDC), United States, ["Economic Geology" "Geophysics" "Mineral Resources"], airborne magnetics, ancient passive margins, assessment, basin, black shale, clastic-dominated deposits, critical minerals, economic geology, faults, geologic maps, geologic time periods, geology, geophysics, geospatial, geospatial analysis, geospatial data, gravity, lead, lithosphere-asthenosphere boundary, machine learning, magnetics, mineral occurrence, mineral prospectivity, mineral resources, modeling, modeling, satellite gravity, zinc, Fewer tags High-resolution multibeam bathymetry and backscatter data collected in 2004 for the northern Channel Islands region, southern California This data release presents data for 5-m resolution multibeam-bathymetry and acoustic-backscatter data of the northern Channel Islands region, southern California. In 2004 the U.S. Geological Survey, Pacific Coastal and Marine Science Center collected multibeam-bathymetry and acoustic-backscatter data in the northern Channel Islands region, southern California. The region was mapped aboard the R/V Ewing using a Kongsberg Simrad EM-1002 multibeam echosounder. These data were previously published on-line at http://pubs.usgs.gov/of/2005/1153/. In this data release the data have been reprocessed to a finer spatial resolution (5-m versus 15-m) using more modern processing techniques. Due to the large file sizes the entire... Categories: Data; Types: Citation, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Backscatter (sea floor), Bathymetry, Bathymetry, CMG, CMGP, All tags... Channel Islands, Coastal and Marine Geology Program, Geology, Geophysics, Multibeam sonar, PCMSC, Pacific Coastal and Marine Science Center, Pacific Ocean, Santa Barbara Channel, Seafloor Topography, State of California, U.S. Geological Survey, USGS, data release, environment, geoscientificInformation, imageryBaseMapsEarthCover, oceans, Fewer tags Physics-based numerical circulation model outputs of ocean surface circulation during the 2010-2013 summer coral-spawning seasons in Maui Nui, Hawaii, USA Here we present surface current results from a physics-based, 3-dimensional coupled ocean-atmosphere numerical model that was generated to understand coral larval dispersal patterns in Maui Nui, Hawaii, USA. The model was used to simulate coral larval dispersal patterns from a number of existing State-managed reefs and large tracks of reefs with high coral coverage that might be good candidates for marine-protected areas (MPAs) during 8 spawning events during 2010-2013. The goal of this effort is to provide geophysical data to help provide guidance to sustain coral health in Maui Nui, Hawaii, USA. Each model output run is available as a netCDF file with self-contained attribute information. Each file name is appended... Categories: Data; Types: Citation, Map Service, NetCDF OPeNDAP Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: CMGP, Coastal and Marine Geology Program, Geophysics, Hawaii, Kahoolawe, All tags... Lanai, Maui, Maui Nui, Molokai, PCMSC, Pacific Coastal and Marine Science Center, U.S. Geological Survey, USA, USGS, United States of America, atmosphere, climatologyMeteorologyAtmosphere, currents, data release, numerical modeling, ocean, ocean circulation, ocean current observations, ocean currents, ocean currents, ocean general circulation models (OGCM)/regional ocean models, ocean surface, oceans, physical oceanography, Fewer tags Stream cross-section, benthic macroinvertebrate and fish taxa counts and abundance, and water chemistry data for the Clarksburg study area in Montgomery County, Maryland, 1992 - 2020 (ver. 1.1, April 2022) Montgomery County, Maryland Department of Environmental Protection has collected datasets to assess the health of streams since the early 1990s. Datasets include geomorphic stream cross-sectional surveys, fish and benthic macroinvertebrate counts and taxa abundance, and water chemistry data collected at the time of benthic and fish sampling (dissolved oxygen, pH, specific conductance, air temperature, and water temperature). Data span years 1992 to 2020 at five watersheds within the Clarksburg study area. Watersheds include a forested reference site (Soper), an urban site with centralized stormwater management (Crystal Rock), and three treatment watersheds (TR104, TR109, and Cabin Branch) within the Clarksburg Special... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Clarksburg, Maryland, Montgomery County, Montgomery County, USGS Science Data Catalog (SDC), All tags... Upper Chesapeake Bay, benthic ecosystems, biota, geomorphology, surface water quality, Fewer tags Southern hognose snake Species Status Assessment data products The three datasets were used in a model estimating the current and future persistence of 222 populations of southern hognose snakes, as estimated as part of the USFWS Species Status Assessment. Because these datasets contain information about sensitive species at risk of overcollection and harassment, they do not contain any spatial identifying information. The "HESIM_locs" dataset contains a list of southern hognose snake occurrence records with associated year of observation and population ID. The "SEsnakes_locs" dataset contains a list of non-target snake species occurrence records with associated year of observation and population ID. The "HESIM_pops_all" dataset contains a list of southern hognose snake populations... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 3 Rs, Alabama (AL), Florida (FL), Georgia (GA), Heterodon simus, All tags... Mississippi (MS), North Carolina (NC), South Carolina (SC), Southeast, Southern Hognose Snake, Species Status Assessment (SSA), USGS Science Data Catalog (SDC), at-risk species, longleaf pine, population persistence, Fewer tags Enhanced Terrain Imagery of the Roanoke 30 x 60 Minute Quadrangle from Lidar-Derived Elevation Models at 3-Meter Resolution This imagery dataset consists of 3-meter resolution, lidar-derived imagery of the Roanoke 30 x 60 minute quadrangle in Virginia. It also covers a part of the Appalachian Basin Province. The source data used to construct this imagery consists of 1-meter resolution lidar-derived digital elevation models (DEMs). The lidar source data were compiled from different acquisitions published between 2017 and 2021 and downloaded from the USGS National Map TNM Download. The data were processed using geographic information systems (GIS) software. The data spatial reference is the WGS 1984 geographic coordinate system. This representation illustrates the terrain as a hillshade with contrast adjusted to highlight local relief... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster; Tags: Roanoke, USGS Science Data Catalog (SDC), USGS:6466397bd34ec11ae4a79bb4, Virginia, digital elevation models, All tags... elevation, image collections, lidar, topography, Fewer tags Per- and polyfluoroalkyl Substances in Select Domestic Wells in the Middle Chickahominy River Watershed, Virginia Samples for per- and polyfluoroalkyl substances (PFAS) were collected from 10 domestic wells to assess the extent to which PFAS is coming from the groundwater aquifer or from another source within the home. Specific objectives included: Collect well construction information; Collect samples for analysis of PFAS directly from the aquifer at domestic wells; Collect samples for analysis of PFAS from two locations within the home to compare with samples collected directly from the aquifer; Quality Assure all data in accordance with USGS policies; and Release data to the public as a citable USGS Data Release. Description of Available Datasets: These data are available in Excel (.xlsx) files that contain water-quality... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geochemistry, PFAS, USGS Science Data Catalog (SDC), Virginia, per- and polyfluoroalkyl substances, All tags... water quality, Fewer tags Static chamber gas fluxes and carbon and nitrogen isotope content of age-dated sediment cores from a Phragmites wetland in Sage Lot Pond, Massachusetts, 2013-2015 Coastal wetlands are major global carbon sinks, however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, static chamber measurements of greenhouse gas (GHG) fluxes were compared among major plant-defined zones (high marsh dominated by Distichlis spicata and a zone of invasive Phragmites australis) during 2013 and 2014 growing seasons. Two sediment cores were collected in 2015 from the Phragmites zone to support previously reported core collections from the high marsh sites (Gonneea and others 2018). Collected cores were up to 70 cm in length with dry bulk density ranges from 0.04 to 0.33 grams per cubic centimeter and carbon content 22.4%... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: 137-cesium, 210-lead, Cape Cod (606914), Commonwealth of Massachusetts (606926), Constant Rate of Supply (CRS) model, All tags... Ecology, Masphee (615624), Sage Lot Pond (616458), United States of America, accretion rate, age model, biota, carbon, carbon burial, carbon isotope analysis, coastal processes, ecological processes, ecological restoration, elevation, environment, geoscientificInformation, inlandWaters, invasive species, location, nitrogen, oceans, piston coring, plot sampling, radiometric dating, salt marshes, sea-level change, sedimentation, soil chemistry, wetland ecosystems, wetland functions, wetland soils, wetlands, Fewer tags Datasets for Integrating stream gage data and Landsat imagery to complete time-series of surface water extents in Central Valley, California This data release comprises the data files and code necessary to perform all analyses presented in the associated publication. The *.csv data files are aggregations of water extent on the basis of the European Commission's Joint Research Centre (JRC) Monthly Water History database (v1.0) and the Dynamic Surface Water Extent (DSWE) algorithm. The shapefile dataset contains the study area 8-digit hydrologic unit code (HUC) regions used as the basis for analysis. Html files provide an overview of the study workflow and integrated R notebooks (in .Rmd format) for recreating all project results and plots. The R notebook ingest the necessary data files from their online locations. These data support the following publication:... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: USGS Science Data Catalog (SDC), Water Resources Eddy covariance measurements of ET, CO2 and Energy Fluxes, and, ancillary data for the Rocky Flats National Wildlife Refuge West site This dataset includes the following measurements made over a xeric tall grass prairie in the southwest portion of Rocky Flats National Wildlife Refuge in 2011 and 2012: 1) half hourly eddy covariance measurements of latent heat flux (evapotranspiration) and fluxes of carbon dioxide and sensible heat, and friction velocity (U star) 2) half hour averages of solar and net radiation; photosynthetically active radiation; air temperature and humidity; soil temperature, moisture, and heat flux; wind speed and direction; and half hour sums of precipitation. 3) approximately weekly measurements of vegetation including leaf area index, height of vegetation, dry and wet weights Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Rocky Flats National Wildlife Refuge (ID: 2765481), USGS Science Data Catalog (SDC), evaporation, greenhouse gases, land use and land cover, All tags... transpiration, Fewer tags Datasets for Rapid Assessment of Streambank Erosion Potential for Selected Streams throughout the Greater Raleigh Area, North Carolina, 2022 As part of a collaborative study with the City of Raleigh, North Carolina, the U.S. Geological Survey is assessing streambank erosion potential in selected stream reaches throughout the Greater Raleigh metropolitan area. Rapid field measurement techniques were used to assess streambank stability at 124 stream segments between January and March 2022. Field data were collected using the Bank Erosion Hazard Index (BEHI) and Near Bank Stress (NBS) assessment methods (Rosgen, 2001; Rosgen and others, 2008) as well as the Rapid Geomorphic Assessment (RGA) method (Simon and others, 2007). This Data Release contains a dataset with all stream site information, field measurements, and streambank stability assessment results;... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Geomorphology, Geomorphology, Hydrology, Land Use Change, Raleigh, North Carolina, All tags... Sedimentology, Soil Sciences, Streambank stability, USGS Science Data Catalog (SDC), Wake County, North Carolina, Water Quality, Water Resources, Fewer tags Seasonal Atmospheric Nitrate and Ammonium Deposition along an Elevation Gradient in the Colorado Front Range using Ion Exchange Resin Columns (2018-2019) Atmospheric deposition of reactive nitrogen (Nr) due to human activities can have measurable effects on ecosystem processing and export of nutrients, groundwater and surface-water quality. Rates of Nr deposition to lower-elevation forests immediately adjacent to the Denver/Boulder urban area, however, have only recently been measured. The focus of this study was to determine the extent of urban and agricultural N pollution transport to the Colorado Front Range. In conjunction with the Network for Urban Atmospheric Nitrogen Chemistry (NUANC) and the National Atmospheric Deposition Program (NADP), we measured wet-plus-dry Nr deposition and evaluated spatial and seasonal variations in N deposition along an elevational... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Colorado, Ecology, Environmental Health, Geochemistry, Land Use Change, All tags... USGS Science Data Catalog (SDC), Water Resources, atmospheric deposition (chemical & particulate), environment, nitrogen, Fewer tags Statistics for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM) This data release documents statistics for simulating structural stormwater runoff best management practices (BMPs) with the Stochastic Empirical Loading and Dilution Model (SELDM)(Granato, 2013). The U.S. Geological Survey (USGS) developed SELDM and the statistics documented in this report in cooperation with the Federal Highway Administration (FHWA) to indicate the risk for stormwater flows, concentrations, and loads to be above user-selected water-quality goals and the potential effectiveness of mitigation measures to reduce such risks. In SELDM, three treatment variables, hydrograph extension, runoff volume reduction, and water-quality treatment are modeled by using the trapezoidal distribution and the rank... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Best Management Practice (BMP), Ecology, Environmental Health, Event Mean Concentration, Federal Highway Administration, All tags... Hydrology, SELDM, Stochastic Empirical Loading and Dilution Model, USGS Science Data Catalog (SDC), Water Quality, environment, highway runoff, inlandWaters, runoff, stormwater, transportation, Fewer tags Groundwater data, predictor variables, and rasters used for predicting redox conditions in the glacial aquifer, northern continental United States This data release contains input data used in model development and TIF raster files used to predict the probability of low dissolved oxygen (DO) and high dissolved iron (Fe) in groundwater within the glacial aquifer system in the northern continental United States. Input data include measured DO and Fe concentrations at groundwater wells, and associated predictor variable data. The probability of low DO and high Fe was predicted using boosted regression tree methods using the gbm package in R (v. 4.0.0) in RStudio (v. 1.2.5042). The response variables for individual models were the occurrence of: (1) DO ≤0.5 mg/L, (2) DO ≤2 mg/L, and (3) Fe >100 µg/L. Water-quality data were compiled from three sources, as described... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Connecticut, Geochemistry, Hydrology, Idaho, Illinois, All tags... Indiana, Iowa, Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, NAWQA, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, USGS Science Data Catalog (SDC), Vermont, Washington, Water Quality, Wisconsin, aquifer system, drinking water use, glacial aquifer system, groundwater, hydrogeology, iron, oxygen content (water), water quality, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey, upper East River and surrounding watersheds near Crested Butte, Colorado, 2017 This data release consists of 1,984 line-kilometers of airborne electromagnetic (AEM), magnetic data and radiometric data collected from October to November 2017 in the upper East River and surrounding watersheds in central Colorado. The U.S. Geological Survey contracted Geotech Ltd. to acquire these data as part of regional investigations into the geologic structure and hydrologic framework of the area. The AEM data have been inverted to produce a series of regional cross-sections that constrain the electrical properties of the subsurface to a depth of ~500m. Data were acquired using the VTEM ET time-domain helicopter-borne electromagnetic system along flight lines that cross important geological structures over... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: Colorado, Crested Butte, East River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, All tags... Gunnison County, Mineral Resources Program, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), aeromagnetic surveying, electromagnetic surveying, geophysics, geoscientificInformation, geospatial datasets, groundwater, groundwater flow, hydrogeology, magnetics, near surface, radiometrics, resistivity, Fewer tags Wild and Scenic Rivers 2018 Linked to the NHDPlusV2.1 These data depict the National Hydrography Dataset Plus Version 2.1 (NHDPlusV2.1) flowline representation of the National Wild and Scenic Rivers System throughout the conterminous United States as of 2018. U.S. Forest Service geospatial data on National Wild and Scenic River segments (USFS WSR Segment) from 3/1/2016 were joined to the NHDPlusV2.1 to create the Wild and Scenic Rivers 2018 Linked to the NHDPlusV2.1 (wsr_nhdpv2.1) data. To ensure these data correctly represented the NHDPlusV2.1 flowline delineation of the National Wild and Scenic Rivers System, each wsr_nhdpv2.1 river segment was examined against the USFS WSR Segment data to check for duplication and/or omission of Wild and Scenic River segments. Spatial... Categories: Data; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Arizona, Arkansas, California, Colorado, All tags... Connecticut, Conterminous, Delaware, Florida, Georgia, Hydrography, Hydrology, Idaho, Illinois, Kentucky, Lotic, Louisiana, Maine, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, NFHP Cooperator, NHDPlus, NHDPlusV2, NHS, National, National Hydrography Dataset, Nebraska, New Hampshire, New Jersey, New Mexico, New York, NoVisual, North Carolina, Ohio, Oregon, Pennsylvania, Recreation, River, Scenic, South Carolina, South Dakota, Spatial Data, Stream, Tennessee, Texas, USA, USFS, USGS, USGS Science Data Catalog (SDC), United States, United States of America, Utah, Vermont, WSR, Washington, Water Resources, West Virginia, Wild, Wisconsin, Wyoming, Fewer tags « 1 2 3 4 5 6 ... 31 »