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The dataset is a model archive containing all relevant files to document and re-run the models that are discussed in the report: Fenelon, J.M., Halford, K.J., and Moreo, M.T., 2016, Delineation of the Pahute Mesa-Oasis Valley groundwater basin, Nevada: U.S. Geological Survey Scientific Investigations Report 2015-5175, http://dx.doi.org/10.3133/sir20155175.
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These simulated potentiometric surface contours represent prepumping (or steady-state) conditions for model layer 1 of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The numerical ground-water flow model simulates prepumping conditions before 1913 and transient-flow conditions from 1913 to 1998 after pumping of ground water began. The DVRFS transient ground-water flow model is the most recent in a number of regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation",...
Types: Citation; Tags: Clayton Valley, MODFLOW-2000, Clark County, China Ranch, Shoshone, All tags...
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This digital geospatial data set contains the locations, values, and uncertainties of hydraulic-head observations used in the calibration of the transient model of the Death Valley regional ground-water flow system (DVRFS). The hydraulic-head observations were developed by compositing one or more water-levels measured in wells throughout the DVRFS model domain, a 45,000 square-kilometer region of southern Nevada and California. To develop hydraulic-head observations, nearly all available water levels for the DVRFS region through 2004 were compiled in Ground-Water Site Inventory (GWSI), the ground-water component of the U.S. Geological Survey (USGS) National Water Information System (NWIS) database. Water levels...
Types: Citation; Tags: water well, Clayton Valley, MODFLOW-2000, Clark County, China Ranch, All tags...
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This digital dataset defines the surface traces of regional geologic structures designated as potential ground-water flow barriers in an approximately 45,000 square-kilometer area of the Death Valley regional ground-water flow system (DVRFS) in southern Nevada and California. Most geologic structures representing potential flow barriers were faults that were identified on the basis of length, offset, type of slip, orientation with respect to predominate ground-water flow directions, the location of springs, abrupt water level offsets, and hydraulic characteristics (Sweetkind and others, 2004). A subset of the potential ground-water flow barriers was incorporated into a transient ground-water flow model of the DVRFS...
Types: Citation; Tags: Clayton Valley, Clark County, China Ranch, Shoshone, Death Valley, All tags...
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This digital data set defines the boundary of the southwestern Nevada volcanic field (SWNVF), an area of thick, regionally distributed volcanic rocks within the Death Valley regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. The SWNVF boundary encompasses an approximate 12,000 square-kilometer region and is based on a map of hydrogeologic controls on ground-water flow by Laczniak and others (1996). The SWNVF is characterized in part by a thick section of regionally distributed welded tuffs derived from a central complex of nested calderas that erupted from about 16 Ma to 5 Ma. The SWNVF boundary defines the extent of these particular volcanics and was...
Types: Citation; Tags: California Valley, Saline Valley, Yucca Mountain, Spring Mountains, Sarcobatus Flat, All tags...
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This digital data set is a compilation of reference points representing surface-water features, ground-water levels, and topographic settings in California that were used for the regional ground-water potential map by Bedinger and Harrill (2004). The regional ground-water potential map was developed to assess potential interbasin flow in the Death Valley regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. To obtain an adequate network of control points, Bedinger and Harrill (2004) also used regional potential altitudes derived from springs and deep well data. A set of general guidelines was developed to relate regional ground-water potential to these more...
Types: Citation; Tags: water well, Clayton Valley, Clark County, ground-water recharge, China Ranch, All tags...
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This digital data set defines the boundaries of the deserts of the southwestern United States. Those deserts include the Great Basin, Mojave, Colorado, and Sonoran Deserts as defined by Benson and Darrow (1981). The study by Benson and Darrow (1981) was a historical reference used to support development of the transient ground-water model of Death Valley regional ground-water flow system (DVRFS) completed in 2004 by the USGS (see "Larger Work Citation", Chapter A, page 8, for details).
Types: Citation; Tags: water well, Clayton Valley, Clark County, ground-water recharge, China Ranch, All tags...
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The digital data set provides locations and general descriptions of sites instrumented to collect micrometeorological data from which mean annual ET rates were computed. Sites are located in Ash Meadows and Oasis Valley, Nevada. Data were collected December 1993 through present.
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This digital data set represents discharge areas in the Death Valley regional ground-water flow system (DVRFS) transient model. Natural ground-water discharge occurs by way of evapotranspiration (ET) and spring flow in the DVRFS model domain, an approximately 45,000 square-kilometer region of southern Nevada and California. Ground water is simulated as discharging from a drain boundary (cell) when the simulated head in the cell rises above a specified drain altitude using the Drain package (Harbaugh and others, 2000). Average annual values of ET and spring discharge (San Juan and others, 2004) were used as observation information during calibration of the DVRFS model (Faunt and others, 2004). The DVRFS transient...
Types: Citation; Tags: drain boundary, California Valley, Saline Valley, MODFLOW-2000, Yucca Mountain, All tags...
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Zones in this data set represent spatially contiguous areas that influence ground-water flow in the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The zones typically represent areas of differing material properties; however, they may also represent spatially similar areas, such as areas of similar infiltration rates. Material properties, such as horizontal hydraulic conductivity, vertical anisotropy, or storage characteristics may vary within a single hydrogeologic unit and be represented by numerous zones; or they may be the same for multiple hydrogeologic units and be represented by a single zone. The DVRFS zones were...
Types: Citation; Tags: California Valley, Saline Valley, MODFLOW-2000, Yucca Mountain, Spring Mountains, All tags...
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This digital geospatial data set contains the locations, values, and uncertainties of 700 hydraulic-head observations used in the steady-state, prepumped period of the transient model of the Death Valley regional ground-water flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. Hydraulic-head observations, which are the composite of one or more water-level measurements made at a well, are used to calibrate ground-water flow models. To develop hydraulic-head observations for the DVRFS ground-water flow model, nearly all available water levels for the DVRFS region through 2004 were compiled in Ground-Water Site Inventory (GWSI), the ground-water component of the U.S. Geological...
Types: Citation; Tags: water well, Clayton Valley, MODFLOW-2000, Clark County, China Ranch, All tags...
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The contours in this digital data set represent the regional potentiometric surface developed by Bedinger and Harrill (2004) to assess potential interbasin flow in the Death Valley regional ground-water flow system (DVRFS). To obtain an adequate network of control points for that 100,000 square-kilometer region of southern Nevada and California, Bedinger and Harrill (2004) used regional potential altitudes derived from surface-water features, ground-water levels, topographic settings, deep wells, and spring data. A set of general guidelines was developed to relate regional ground-water potential to these more readily observed surface and near-surface ground-water levels and to hydrologic characteristics of ground-water...
Types: Citation; Tags: California Valley, Saline Valley, water well, Yucca Mountain, Spring Mountains, All tags...
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These contours represent the simulated potentiometric surface at the end of simulation (1998) in model layer 16 of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The numerical ground-water flow model simulates prepumping conditions before 1913 and transient-flow conditions from 1913 to 1998 after pumping of ground water began. The DVRFS transient ground-water flow model is the most recent in a number of regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation",...
Types: Citation; Tags: California Valley, Saline Valley, MODFLOW-2000, Yucca Mountain, Spring Mountains, All tags...
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These contours represent the simulated potentiometric surface at the end of simulation (1998) in model layer 1 of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The numerical ground-water flow model simulates prepumping conditions before 1913 and transient-flow conditions from 1913 to 1998 after pumping of ground water began. The DVRFS transient ground-water flow model is the most recent in a number of regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation",...
Types: Citation; Tags: California Valley, Saline Valley, MODFLOW-2000, Yucca Mountain, Spring Mountains, All tags...
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This digital data set defines the boundary of the ground-water flow model by D'Agnese and others (1997). This steady-state, 3-layer ground-water flow model was developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at Yucca Mountain, Nevada (see "Larger Work Citation", Chapter A, pages 7-8, for details). The model area encompasses approximately 35,000 square-kilometers of southern Nevada and California, or most of the Death Valley regional ground-water flow system (DVRFS) defined by D'Agnese and others (1997). Where possible, the lateral boundary encompassing the model area is a no-flow boundary resulting from physical barriers or hydraulic separation of...
Types: Citation; Tags: water well, Clayton Valley, Clark County, China Ranch, Shoshone, All tags...
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The digital data set provides point locations and general descriptions of areas photographed to document sites visited during a study to refine current estimates of ground-water discharge from the major discharge areas of the Death Valley regional flow system. Photographs were taken 1994-99. Sites were used as controls to better improve the delineation of ET (evapotranspiration) units classified using spectral methods throughout each of the major discharge areas.
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This digital data set represents discharge areas in the Death Valley regional ground-water flow system (DVRFS) transient model. Natural ground-water discharge occurs by way of evapotranspiration (ET) and spring flow in the DVRFS model domain, an approximately 45,000 square-kilometer region of southern Nevada and California. Ground water is simulated as discharging from a drain boundary (cell) when the simulated head in the cell rises above a specified drain altitude using the Drain package (Harbaugh and others, 2000). Average annual values of ET and spring discharge (San Juan and others, 2004) were used as observation information during calibration of the DVRFS model (Faunt and others, 2004). The DVRFS transient...
Types: Citation; Tags: drain boundary, Clayton Valley, MODFLOW-2000, Clark County, China Ranch, All tags...
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These contours represent the simulated potentiometric surface at the end of simulation (1998) in model layer 16 of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The numerical ground-water flow model simulates prepumping conditions before 1913 and transient-flow conditions from 1913 to 1998 after pumping of ground water began. The DVRFS transient ground-water flow model is the most recent in a number of regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations at the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see "Larger Work Citation",...
Types: Citation; Tags: Clayton Valley, MODFLOW-2000, Clark County, China Ranch, Shoshone, All tags...
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Recharge in the Death Valley regional ground-water flow system (DVRFS) was estimated from net infiltration simulated by Hevesi and others (2003) using a deterministic mass-balance method. Hevesi and others (2003) estimated potential recharge for the DVRFS, an approximately 100,000 square-kilometer region of southern Nevada and California, using the net-infiltration model, INFILv3. Net infiltration, estimated on a cell-by-cell basis, equaled the sum of snowmelt, precipitation, and infiltrating surface flow minus the sum of evapotranspiration (ET), runoff, and changes in root-zone storage. The net-infiltration model was calibrated to available surface-water flow measurements and constrained by prior estimates of recharge...
Types: Citation; Tags: California Valley, Saline Valley, MODFLOW-2000, Yucca Mountain, Spring Mountains, All tags...


map background search result map search result map Evapotranspiration sites within the Ash Meadows and Oasis Valley discharge areas, Nevada Photographs used to verify ET units classified in the major discharge areas of Death Valley regional Discharge areas for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 16 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Net infiltration of the Death Valley regional ground-water flow system, Nevada and California Regional potentiometric-surface contours by Bedinger and Harrill (2004), for the Death Valley regional ground-water flow system study, Nevada and California Boundary of the southwestern Nevada volcanic field from Laczniak and others (1996), for the Death Valley regional ground-water flow system study, Nevada and California Material-property zones used in the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Boundary of the ground-water flow model by D'Agnese and others (1997), for the Death Valley regional ground-water flow system study, Nevada and California Deserts of the southwestern United States, for the Death Valley regional ground-water flow system study, Nevada and California Discharge areas for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours of prepumping conditions in layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 16 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Potential structural barriers to ground-water flow, Death Valley regional ground-water flow system, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the steady-state, prepumped period of the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Topographic reference points in California for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California Model Archive of Pahute Mesa-Oasis Valley Groundwater Flow Model SIR2015-5175, Pahute Mesa-Oasis Valley and surrounding groundwater basins, Nevada and California, version 1.1 Evapotranspiration sites within the Ash Meadows and Oasis Valley discharge areas, Nevada Model Archive of Pahute Mesa-Oasis Valley Groundwater Flow Model Photographs used to verify ET units classified in the major discharge areas of Death Valley regional Boundary of the southwestern Nevada volcanic field from Laczniak and others (1996), for the Death Valley regional ground-water flow system study, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Locations, values, and uncertainties of hydraulic-head observations for the steady-state, prepumped period of the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Boundary of the ground-water flow model by D'Agnese and others (1997), for the Death Valley regional ground-water flow system study, Nevada and California Simulated potentiometric surface contours of prepumping conditions in layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 1 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 16 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Simulated potentiometric surface contours at end of simulation (1998) in model layer 16 of the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Potential structural barriers to ground-water flow, Death Valley regional ground-water flow system, Nevada and California SIR2015-5175, Pahute Mesa-Oasis Valley and surrounding groundwater basins, Nevada and California, version 1.1 Discharge areas for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Material-property zones used in the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California Discharge areas for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California Net infiltration of the Death Valley regional ground-water flow system, Nevada and California Topographic reference points in California for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California Regional potentiometric-surface contours by Bedinger and Harrill (2004), for the Death Valley regional ground-water flow system study, Nevada and California Deserts of the southwestern United States, for the Death Valley regional ground-water flow system study, Nevada and California