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This dataset consists of points representing selected well site locations and water-level measurements used by Lopes and Allander (2009) to develop autumn 2006 groundwater-level altitude contours for Smith and Mason Valleys, and the lower Walker River basin, Nevada. Since the publication of Lopes and Allander (2009), the positional coordinates and land-surface altitudes at selected well sites used to develop autumn 2006 groundwater-level contours in that report were updated as part of a 2022 U.S. Geological Survey study (Davies and Naranjo, 2022).
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Antelope Valley,
Basin 106,
Basin 107,
Basin 108,
Basin 109,
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. Polygons delineate generalized areas in and around Great Basin National Park where surface-water resources likely or potentially are susceptible to groundwater withdrawals in adjacent valleys.
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...
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 layer is geographically based on Bureau of Land Management (BLM) and U.S. General Land Office Geographic Coordinate Data Base (GCDB) 1:24,000-scale Land survey Information System Data Base (LSIS) data for the states of Nevada and Utah sourced from the U.S. Geological Survey (USGS) Digital Line Graph (DLG) dataset. Tabular data is derived from the Nevada Division of Water Resources (NDWR) Crop Inventory Data. NDWR inventories...
This dataset consists of digitized 1:24,000-scale polylines and polygons representing hydrographic areas for the Walker River basin, California and Nevada.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Antelope Valley,
Basin 106,
Basin 107,
Basin 108,
Basin 109,
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 extent of the Basin and Range aquifers in the states of California, Utah, Arizona, and Nevada.
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 extent of the Basin and Range carbonate-rock aquifers in the states of Idaho, Utah, Arizona, Nevada, and California.
This dataset represents "phreatophyte areas" mapped as part of a groundwater reconnaissance effort in four valleys in central Nevada and published in 1964. The data were digitized for comparison with mapping of groundwater discharge areas done in 2011 as part of a groundwater study in these valleys published in 2016.
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. Four polygon vector data sets and one related table describe land-cover in Red Rock Canyon National Conservation Area (RRC_NCA_p) and Coyote Springs (CS_ACEC_p), Piute-Eldorado Valley (PEV_ACEC_p), and Mormon Mesa (MM_ACEC_p) Areas of Critical Environmental Concern, Clark County, Nevada. One polygon vector data set per Area is attributed with land- cover at the vegetation stand level (abbreviated with a stand code) and the corresponding...
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...
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 consists of areas permitted for irrigation, storage, evaporation, and disposal of treated sewage effluent in the Upper Carson River Basin, California and Nevada. It was compiled at 1:24,000-scale from maps, figures, and verbal and written communication provided by permitting agencies, Nevada Department of Environmental Protection (NDEP), public utility districts, and permitees. This data set contains the permitted area...
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. With increasing population growth and land-use change, urban communities in the desert southwest are progressively looking to remote basins to supplement existing water supplies. Recent applications for groundwater appropriations from Dixie Valley, Nevada, a primarily undeveloped basin neighboring the Carson Desert to the east, have prompted a reevaluation of the quantity of naturally discharging groundwater. The objective of this...
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 extent of the Southern Nevada volcanic-rock aquifers in Nevada.
A three-dimensional, groundwater model (MODFLOW-2005) was developed to determine effects of future (2019–2100) groundwater development 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. Two pumping scenarios were developed. Scenario 1 assumed pumping continues at the current (2018) rate through 2100. Scenario 2 assumed all pumping stops in 2018 so that recovery can be observed from 2019–2100. Input and output files for the predictive simulations are in the model and output directories, respectively. The predictive model was calibrated with...
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 consists of 1:1,000,000-scale large springs defined as where discharge is generally greater than 1,000 gallons per minute in Utah and most of Nevada; and greater than 200 gallons per minute in more arid parts of Nevada and in California. The source of this data set is sheet 2 of a 1988 U.S. Geological Survey hydrologic investigations atlas map (Harrill and others, 1988.) Reference Cited Harrill, J.R., Gates, J.S., and...
A three-dimensional, groundwater-flow model (MODFLOW-2005) was developed to estimate the hydraulic properties (e.g., transmissivity, hydraulic conductivity, specific yield, and specific storage) of volcanic rocks in Pahute Mesa, Nye County, Nevada. The model was calibrated using parameter estimation (PEST) by fitting estimated drawdowns to simulated drawdowns from 16 multiple-well aquifer tests. Water-level models were used to estimate drawdowns from continuous water-level data collected during multiple-well aquifer testing. This USGS data release contains all of the input and output files for the simulations described in the associated model documentation report (http://doi.org/10.3133/sir20165151). This data release...
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. Accurate delineations of irrigated acreage are critical in the development of water-use estimates and in determining an accurate water budget for the hydrographic basins of the BARCAS study area. Currently, irrigated acreage is estimated routinely for only a few basins in the study area and these acreages are calculated and reported by township range section, quarter, and quarter-quarter. Satellite imagery from the Landsat Thematic...
This vector dataset consists of 2 polygon shapefiles representing the groundwater discharge areas (GDA) and evapotranspiration (ET) units for the Amargosa Wild and Scenic River and contributing areas. GDAs were delineated by visual interpretation and subdivided into ET units of moist soil, open water, and vegetated areas.
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Amargosa River,
California,
California Valley,
Chicago Valley,
ET unit,
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 geodatabase consists of a point feature class and related tables representing sample sites where vegetation data were collected from 2007 to 2013 in Clark and Lincoln Counties, Nevada. Samples are identified with a vegetation stand name and classified from the alliance to the class level of the National Vegetation Classification Standard (NVC; Federal Geographic Data Committee, 2008). The database is also available in tabular...
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 contains 1971-2000 mean annual precipitation estimates for west-central Nevada. This is a raster data set developed using the precipitation-zone method, which uses elevation-based regression equations to estimate mean annual precipitation for defined precipitation zones (Lopes and Medina, 2007.) This data set is based on the 30-meter National Elevation Dataset. Reference Cited Lopes, T.J., and Medina, R.L., 2007, Precipitation...
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