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Nitrogen Loads, Yields, and Associated Field Data Collected During Baseflow Conditions and Site Attributes for Small Basins Draining to Long Island Sound During the spring and summer of 2022, the U.S. Geological Survey collected water-quality samples for nutrient analysis at 45 stations across the state of Connecticut and adjacent areas of New York and Rhode Island to better understand the groundwater discharge component of nitrogen loading to the Long Island Sound. The targeted stations were located in small drainage basins (less than 50 square kilometers) in the southern portion of the Long Island Sound watershed. Sites were selected randomly from groups based on expected drivers or controls on baseflow nitrogen loads. Factors used in the grouping included four metrics calculated for the upstream watershed: percent impervious cover, septic system density, percent... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Connecticut, Connecticut Coastal, Hydrology, Long Island Sound, New York, All tags... Rhode Island, USGS Science Data Catalog (SDC), Water Quality, Water Resources, groundwater and surface-water interaction, inlandWaters, nitrogen, nutrient content (water), stream discharge, Fewer tags Data release of Bathymetric Map, Surface Area, and Capacity of Grand Lake O' the Cherokees, Northeastern Oklahoma, 2019 The U.S. Geological Survey in cooperation with the Grand River Dam Authority completed a high-resolution multibeam bathymetric survey to compute a new capacity and surface-area table. The capacity and surface-area tables describe the relation between the elevation of the water surface and the volume of water that can be impounded at each given water-surface elevation. The capacity and surface area of Grand Lake O’ the Cherokees were computed from a Triangular Irregular Network (TIN) surface created in Global Mapper Version 21.0.1. The TIN surface was created from three datasets: (1) a multibeam bathymetric survey of Grand Lake O’ the Cherokees in 2019 (Hunter and others 2020), (2) a 2017 USGS bathymetric survey... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Raster, Shapefile; Tags: Bathymetry, Bathymetry and Elevation, Bathymetry and Elevation, Grand Lake O' the Cherokees, Oklahoma, All tags... U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), Water Resources, bathymetry, climatologyMeteorologyAtmosphere, inlandWaters, multibeam echo sounder, utilitiesCommunication, Fewer tags NGWOS Ground Based Discrete Snowpack Measurements Ground-based discrete snowpack measurements were collected during winter field campaigns starting in 2020. These data were collected as part of the U.S. Geological Survey (USGS) Next Generation Water Observing System (NGWOS) Upper Colorado River Basin project focusing on the relation between snow dynamics and water resources. This data release consists of three child items. Each child item contains snow depth, snow density, snow temperature, or snow water equivalent values measured discretely in the field. The data are provided in comma separated value (CSV) files. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Colorado, Colorado River, Hydrology, Integrated Water Science, Rocky Mountains, All tags... USGS Science Data Catalog (SDC), Water Resources, snow, snow density, snow depth, snow pit, snow temperature, snow water equivalent, snowpack, Fewer tags Sparta-Memphis aquifer well point dataset, in Arkansas, January-June 2015 Dataset contains the groundwater well locations and water-level measurements for 273 wells measured during a water-level survey of the Sparta-Memphis aquifer in Arkansas, January through June 2015. Well-location and water-level data is publicly available from the U.S. Geological Survey's National Water Information System. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Mississippi Embayment aquifer system, Sparta-Memphis Sand, aquifer, effects of groundwater extraction, All tags... geoscientificInformation, groundwater, groundwater flow, groundwater level, hydrogeology, water resources, Fewer tags Russian River Integrated Hydrologic Model (RRIHM): Climate Data for 1990-2015 The Russian River Watershed (RRW) covers about 1,300 square miles (without Santa Rosa Plain) of urban, agricultural, and forested lands in northern Sonoma County and southern Mendocino County, California. Communities in the RRW depend on a combination of Russian River water and groundwater to meet their water-supply demands. Water is used primarily for agricultural irrigation, municipal and private wells supply, and commercial uses - such as for wineries and recreation. Annual rainfall in the RRW is highly variable, making it prone to droughts and flooding from atmospheric river events. In order to better understand surface-water and groundwater issues, the USGS is creating a Coupled Ground-Water and Surface-Water... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: California, Hydrology, Russian River, USGS Science Data Catalog (SDC), United States, All tags... Water Resources, climate, climatologyMeteorologyAtmosphere, evapotranspiration, precipitation, solar radiation, temperature, Fewer tags Estimated crop irrigation water use withdrawals in Willcox Groundwater Basin, Arizona for 2022 Observations of irrigated agricultural land within the Willcox Groundwater Basin in Arizona. Digitized field boundaries were used to locate crops for in situ verification twice in 2022; crop verification occurred first on May 17th and again on August 26th. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were calculated using the modified... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Cochise, Graham, Land Use Change, USGS Science Data Catalog (SDC), All tags... Water Resources, Willcox Groundwater Basin, agricultural sites, groundwater, irrigation, water use, Fewer tags Little Dry Creek and Cottonwood Creek Sediment Transport Data, 2012-2018, San Joaquin Watershed in the California Central Valley Two tributary watersheds¬ Cottonwood Creek and Little Dry Creek¬ to the greater San Joaquin watershed, in California’s Central Valley were assessed for sediment and flow dynamics, between water years (Oct. 1 to Sept. 30) 2011 and 2019. The two systems deliver suspended sediment to the San Joaquin River below Friant Dam, California. Because these two creeks are directly down river of Friant Dam, they become the most upstream source of sediment to the San Joaquin River below Friant Dam. Thus, is it important to assess their contribution to the San Joaquin system. Flow from each creek watershed, along with the San Joaquin River, was compared to continuously measured water surface elevations to quantify flow direction... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Cottonwood Creek, Cottonwood Creek, Ecology, Geomorphology, Hydrology, All tags... Little Dry Creek, Little Dry Creek, San Joaquin River, San Joaquin River, Sediment transport, Sediment transport, Sedimentology, USGS Science Data Catalog (SDC), Water Quality, Water Resources, Wildlife Biology, inlandWaters, river systems, Fewer tags Estimated crop irrigation water use withdrawals in San Simon Valley Groundwater Subbasin of the Safford Groundwater Basin, Arizona for 2022 Observations of irrigated agricultural land within the San Simon Valley Groundwater Subbasin of the Safford Groundwater Basin. Digitized field boundaries were used to locate crops for in situ verification twice in 2022; crop verification occurred first on May 18th and again on August 24th. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Cochise, Land Use Change, Safford-San Simon Valley Groundwater Subbasin, USGS Science Data Catalog (SDC), All tags... Water Resources, agricultural sites, groundwater, irrigation, water use, Fewer tags Data to support water quality modeling efforts in the Delaware River Basin: 1) Spatial data for rivers, reservoirs, and monitoring locations This data release contains information to support water quality modeling in the Delaware River Basin (DRB). These data support both process-based and machine learning approaches to water quality modeling, including the prediction of stream temperature. This section provides spatial data files that describe the rivers, reservoirs, and observational data in the Delaware River Basin included in this release. One shapefile of polylines describes the 459 river reaches that define the modeling network, and another shapefile of polygons includes the three reservoirs (Pepacton, Cannonsville, and Neversink) for which data are included in this release. Additionally, a point shapefile contains locations of monitoring sites... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service, Shapefile; Tags: DE, Delaware, MD, Maryland, NJ, All tags... NY, New Jersey, New York, PA, Pennsylvania, US, United States, environment, inlandWaters, modeling, reservoirs, streams, temperature, water, water quality, water resources, Fewer tags Airborne Electromagnetic (AEM) Survey in Southwest and Southeast Areas, Wisconsin, 2022 Airborne electromagnetic (AEM) and magnetic survey data were collected during March 2022 over a distance of 2,574.6 line kilometers in southeast and southwest Wisconsin. These data were collected in support of an effort to improve estimates of depth to bedrock through a collaborative project between the U.S. Geological Survey (USGS), Wisconsin Department of Agriculture, Trade, and Consumer Protection (DATCP), and Wisconsin Geological and Natural History Survey (WGNHS). Data were acquired by SkyTEM Canada Inc. with the SkyTEM 304M time-domain helicopter-borne electromagnetic system together with a Geometrics G822A cesium vapor magnetometer. The survey was acquired at a nominal flight height of 30 - 40 meters (m)... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Crawford County, Dane County, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Geophysics, All tags... Grant County, Green County, Hydrology, Iowa County, Jefferson County, Kenosha County, Lafayette County, Racine County, UMid WSC, USGS Science Data Catalog (SDC), Upper Midwest Water Science Center, Walworth County, Water Resources, Waukesha County, Wisconsin, aeromagnetic surveying, electromagnetic surveying, environment, geophysics, geoscientificInformation, geospatial datasets, resistivity, stratigraphic thickness, Fewer tags 2018 Hydrologic Data Summary for the Central Pine Barrens Region, Suffolk County, New York (ver. 2.0, February 2024) This document provides a summary of surface water-quality, streamflow, and groundwater data collected by the U.S. Geological Survey (USGS) within the Central Pine Barrens (CPB) Region of Suffolk County, New York. The data were collected in cooperation with the Central Pine Barrens Commission and the Town of Brookhaven under a five-year comprehensive water resources monitoring program. The surface water-quality data within the CPB for the 2018 water year (October 1, 2017 to September 30, 2018) includes data from the Carmans River and the Peconic River. The streams were sampled several times throughout the year at seven pre-determined locations. The Carmans River was sampled at five locations: 1) CARMANS RIVER AT... Categories: Data, Data Release - Revised; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Carmans River, Central Pine Barrens, Long Island, New York, Peconic River, All tags... Pine Barrens, Suffolk County, USGS Science Data Catalog (SDC), United States, Water Quality, Water Quality, Water Quality, Water Resources, Water-Quailty Modeling, emerging contaminants, environmental health, groundwater quality, river, stream, surface water, surface water quality, water quality, Fewer tags Drainage basins for selected transboundary streams in south-east Alaska and Canada through 2022 This dataset consists of drainage basin boundaries for selected transboundary basins draining to the Gulf of Alaska in south-east Alaska. Basins were delineated to the basin outlet using a tidal datum of mean high water (MHW). The drainage basins are provided as polygons attributed with basin drainage area and as polylines attributed with the data source for each line segment, respectively. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Geomorphology, USGS Science Data Catalog (SDC), Water Resources, drainage basins, inlandWaters, All tags... watershed, Fewer tags Estimated crop irrigation water use withdrawals in Hualapai Valley Groundwater Basin, Arizona for 2022 Observations of irrigated agricultural land within the Hualapai Valley Groundwater Basin in Arizona. Digitized field boundaries were used to locate crops for in situ verification once in 2022; crop verification occurred on June 2nd. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were calculated using the modified Blaney-Criddle model of... Categories: Data, Data Release - In Progress; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Hualapai Valley Groundwater Basin, Land Use Change, Mohave, USGS Science Data Catalog (SDC), All tags... Water Resources, agricultural sites, groundwater, irrigation, water use, Fewer tags Water-level changes 2011-2013, in the Sparta-Memphis aquifer, in Arkansas The groundwater-level change maps for the Sparta-Memphis aquifer are constructed as a point-to-point comparison between wells measured in both 2011 and 2013. Wells not measured in both 2011 and 2013 were not included in the change maps construction. The 2011-2013 change map contains 261 corresponding wells. Groundwater-level differences were calculated by subtracting 2011 groundwater-level measurements, in ft below land surface from the 2013 groundwater-level measurements, in feet below land surface. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Mississippi Embayment aquifer system, Sparta-Memphis aquifer, aquifer, effects of groundwater extraction, All tags... geoscientificInformation, groundwater, groundwater flow, groundwater level, hydrogeology, water resources, Fewer tags Prototype updated principal aquifer datasets for three aquifer systems in the Upper Midwest, USA This geospatial dataset represents a prototype of a finer-scale representation of the principal aquifers of the United States, using four original principal aquifers in the Upper Midwest, United States, which were re-analyzed and condensed into three updated principal aquifers. The original principal aquifer definitions and extents were published in the Ground Water Atlas of the United States at a scale of 1:5,000,000. The updated version in this dataset are based on a reinterpretation of the original definitions using geologic data from the U.S. Geological Survey (USGS) State Geologic Map Compilation (v 1.1, 2017), which contains published state data at scales from 1:50,000 to 1:1,000,000. This shapefile includes... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Illinois, Iowa, Michigan, Midwest, Minnesota, All tags... Missouri, USGS Science Data Catalog (SDC), United States, Water Resources, Wisconsin, aquifers, geoscientificInformation, groundwater, Fewer tags Electrical resistivity tomography in the Air Force Research Laboratory Northeast AFRL and Arroyos Groundwater Areas, Edwards Air Force Base, California 2022 The U.S. Geological Survey (USGS) and Air Force Civil Engineering Center (AFCEC) have entered into a cooperative agreement to refine the hydrogeology in the Northeast AFRL and Arroyos groundwater areas of the Air Force Research Laboratory of Edwards Air Force Base. As part of these efforts, two electrical resistivity tomography (ERT) surveys- AFRL9 and AFRL10- were collected in the vicinity of the Mound Fault identified by Cyr and Miller (2023) to better determine the position of these faults. Electrical resistivity tomography is a direct current geophysical method that is used to estimate the subsurface distribution of the electrical resistivity (measured in ohm-meters; ohm-m) of a material, and is based on the... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Antelope-Fremont Valleys, California, Edwards Air Force Base, Geophysics, Kern County, All tags... Leuhman Ridge, Structural Geology, USGS Science Data Catalog (SDC), Water Resources, electrical resistivity imaging, geophysics, geoscientificInformation, groundwater, society, Fewer tags Supplemental Data for: Drilling, Construction, Water Chemistry, Water Levels, and Regional Potentiometric Surface of the Upper Carbonate-Rock Aquifer in Clark County, Nevada, 2009-2015 (1:500,000) This USGS data release contains the regional potentiometric contours representing the regional potentiometric surface for Clark County, Nevada, 2009-2015. Contours represent the groundwater-level altitude with a 250-foot contour interval and were created from groundwater elevations from 58 wells and surface elevations from 5 springs. Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Clark County, Nevada, USGS Science Data Catalog (SDC), Water Resources, geoscientificInformation, All tags... groundwater, groundwater level, groundwater level, inlandWaters, Fewer tags Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, Mississippi Embayment, and Gulf Coastal Plain, September 2021 - January 2022 Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired September 2021 to January 2022 along 27,204 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP), Mississippi Embayment, and Gulf Coastal Plain. Data were acquired by Xcalibur Multiphysics (Canada), Ltd. with three different airborne sensors: the 30Hz TEMPEST time-domain AEM instrument that is used to map subsurface geologic structure at depths up to 300 meters (m) 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... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arkansas, Arkansas River, GGGSC, Geology, Geophysics, and Geochemistry Science Center, Illinois, All tags... Louisiana, MRVA, Mississippi, Mississippi Alluvial Plain, Mississippi River, Mississippi River Valley Alluvial aquifer, Missouri, New Madrid Seismic Zone, Shellmound, Tennessee, U.S. Geological Survey, USGS, USGS Science Data Catalog (SDC), WAUSP, Water Availability and Use Science Program, ["Geophysics"], aeromagnetic surveying, aeroradiometric surveying, electromagnetic surveying, electromagnetics, engineering sciences, environment, geologic structure, geophysics, geoscientificInformation, geospatial datasets, groundwater, hydrogeology, hydrology, magnetic field, magnetics, potassium, radiometrics, resistivity, thorium, uranium, water resources, Fewer tags Depth to bedrock determined from passive seismic measurements, Neversink River watershed, NY (USA) This data release documents streambed sediment thickness in the Neversink watershed (NY) as determined by field observations and HVSR passive seismic measurements, and were collected as an extension of a previous data set collected in the same watershed (see Associated Items). These measurements were made between May 17, 2021 and May 21, 2021 using MOHO Tromino three-component seismometers (MOHO, S.R.L.). Seismic observations were converted to sediment thickness (depth to bedrock, meters) using the horizontal-to-vertical spectral ratio (HVSR) method. Resonance frequencies were determined from time domain data using GRILLA (MOHO, S.R.L.) software and converted to inferred depth to bedrock for a range of possible... Categories: Data; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: GW or SW, Geophysics, Geophysics, HVSR, Hydrology, All tags... Integrated Water Science, Integrated Water Science, Neversink River, New York State, Surface Geophysics, USGS Science Data Catalog (SDC), Ulster County, Water Resources, geophysics, groundwater and surface-water interaction, headwater streams, hydrogeology, hydrology, Fewer tags Estimated crop irrigation water use withdrawals in Sacramento Valley Groundwater Basin, Arizona for 2022 Observations of irrigated agricultural land within the Sacramento Valley Groundwater Basin in Arizona. Crops were verified in situ once in 2022 on May 31st; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agricultural Imagery Program County Mosaic 2021 imagery for Arizona and supplemented with Landsat and Sentinel2 imagery collections accessed via the Sentinel Hub, Sentinel Playground (https://apps.sentinel-hub.com/sentinel-playground). Satellite images were also used to identify the length of the growing season and crop condition. Water withdrawals were calculated using the modified Blaney-Criddle model of calculating consumptive use (U.S. Bureau... Categories: Data, Data Release - In Progress; Types: Downloadable, Map Service, OGC WFS Layer, OGC WMS Layer, Shapefile; Tags: Arizona, Land Use Change, Mohave, Sacramento Valley Groundwater Basin, USGS Science Data Catalog (SDC), All tags... Water Resources, agricultural sites, groundwater, irrigation, water use, Fewer tags 1 2 »