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Vulnerability of shallow ground water and drinking-water wells to nitrate in the United States: Model of predicted nitrate concentration in U.S. ground water used for drinking (simulation depth 50 meters) -- Input data set for water input (gwava-dw_wtin) 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 "water input," the ratio of the total area of irrigated land to precipitation, in square kilometers per centimeter, in the conterminous United States. The data set was used as an input data layer for a national model to predict nitrate concentration in ground water used for drinking. Nolan and Hitt (2006) developed two national models to predict contamination of ground water by nonpoint sources of nitrate.... Categories: pre-SM502.8; Tags: Conterminous United States, Drinking water, Ground water, Ground water contamination, Ground water pollution, All tags... Ground water susceptibility, Irrigated land, NAWQA, NSDI, National Land Cover Data, National Water-Quality Assessment Program, Nitrate, Nitrate concentration, Nonlinear model, Nutrients, Precipitation, USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags Reference springs in California for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California 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 digital geospatial data set is a compilation of reference points representing springs 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... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, environment, evapotranspiration, flow model, geoscientificInformation, ground water, ground-water discharge, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydraulic-head observation, hydrogeologic framework model, hydrogeology, hydrology, inlandWaters, inlandWaters, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water model, transient ground-water model, water level, water well, Fewer tags Reference springs in Nevada for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California 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 digital geospatial data set is a compilation of reference points representing springs in Nevada 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... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, evapotranspiration, flow model, ground water, ground-water discharge, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydrogeologic framework model, hydrogeology, hydrology, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water model, transient ground-water model, water level, water well, Fewer tags Reference springs in Nevada for the regional ground-water potential map by Bedinger and Harrill (2004), Death Valley regional ground-water flow system, Nevada and California 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 digital geospatial data set is a compilation of reference points representing springs in Nevada 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... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, environment, evapotranspiration, flow model, geoscientificInformation, ground water, ground-water discharge, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydrogeologic framework model, hydrogeology, hydrology, inlandWaters, inlandWaters, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water model, transient ground-water model, water level, water well, Fewer tags Boundary of the ground-water flow model by IT Corporation (1996), for the Death Valley regional ground-water flow system study, Nevada and California 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 digital data set defines the boundary of the steady-state ground-water flow model built by IT Corporation (1996). The regional, 20-layer ground-water flow model was developed for the Underground Test Area (UGTA) Phase I project to simulate the Nevada Test Site and surrounding areas. The model was used for estimating the amount of water moving through the ground-water system, predicting the movement of contaminants, evaluating... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system (DVRFS), Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, evapotranspiration, ground water, ground-water discharge, ground-water flow system boundary, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydrogeologic framework model, hydrogeology, hydrology, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water flow model, transient ground-water flow model, water level, water well, Fewer tags Boundary of the ground-water flow model by IT Corporation (1996), for the Death Valley regional ground-water flow system study, Nevada and California 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 digital data set defines the boundary of the steady-state ground-water flow model built by IT Corporation (1996). The regional, 20-layer ground-water flow model was developed for the Underground Test Area (UGTA) Phase I project to simulate the Nevada Test Site and surrounding areas. The model was used for estimating the amount of water moving through the ground-water system, predicting the movement of contaminants, evaluating... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system (DVRFS), Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, environment, evapotranspiration, geoscientificInformation, ground water, ground-water discharge, ground-water flow system boundary, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydrogeologic framework model, hydrogeology, hydrology, inlandWaters, inlandWaters, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water flow model, transient ground-water flow model, water level, water well, Fewer tags 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 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 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... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, flow model, ground water, ground-water pumping, hydraulic head, hydraulic-head observation, hydrology, observation uncertainty, southern Nevada, steady-state ground-water model, steady-state hydraulic-head observation, transient ground-water model, transient hydraulic-head observation, water level, water well, Fewer tags Material-property zones used in the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California 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. 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,... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, MODFLOW-2000 zones, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, flow model, ground water, ground-water recharge, hydraulic conductivity, hydrogeology, hydrology, net infiltration, southern Nevada, transient ground-water model, Fewer tags Lateral boundary of the steady-state ground-water flow model by D'Agnese and others (2002), Death Valley regional ground-water flow system, Nevada and California 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 digital data set defines the lateral boundary of the area simulated by the steady-state ground-water flow model of the Death Valley regional ground-water flow system (DVRFS) by D'Agnese and others (2002). The DVRFS flow model was 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. The model area is an approximately... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, environment, evapotranspiration, flow model, geoscientificInformation, ground water, ground-water discharge, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydrogeologic framework model, hydrogeology, hydrology, inlandWaters, inlandWaters, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water model, transient ground-water model, water level, water well, Fewer tags Simulated constant-head boundary for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California 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 digital data set represents the constant head-boundary used to simulate ground-water inflow or outflow at the lateral boundary of the Death Valley regional ground-water flow system (DVRFS) transient model. The area simulated by the DVRFS transient ground-water flow model is an approximately 45,000 square-kilometer region of southern Nevada and California. The hydraulic heads imposed at the constant-head cells were interpolated... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, constant-head boundary, flow model, ground water, ground-water inflow, ground-water outflow, hydraulic head, hydraulic-head observation, hydrogeology, hydrology, lateral ground-water flow, lateral ground-water model boundary, southern Nevada, transient ground-water model, water level, Fewer tags Model grid and infiltration values for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California 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 digital data set defines the model grid and infiltration values simulated in the transient ground-water flow model of the Death Valley regional ground-water flow system (DVRFS), an approximately 45,000 square-kilometer region of southern Nevada and California. The DVRFS model grid is north-south-oriented, consists of 194 rows and 160 columns, and has a constant grid-cell spacing of 1,500 meters. Model cells are attributed with... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, environment, flow model, geoscientificInformation, ground water, ground-water recharge, hydraulic conductivity, hydrogeology, hydrology, infiltration, inlandWaters, inlandWaters, model grid, net infiltration, southern Nevada, transient ground-water model, Fewer tags Initial hydraulic heads for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California 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 digital data set defines the hydraulic-head values in 16 model layers used to initiate the transient simulation of the Death Valley regional ground-water flow system (DVRFS) model. The area simulated by the DVRFS transient ground-water flow model is an approximately 45,000 square-kilometer region of southern Nevada and California. In order to reduce model execution time, hydraulic head values output from the steady-state simulation... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, flow model, ground water, hydraulic head, hydrology, initial hydraulic-head, southern Nevada, steady state ground-water model, transient ground-water model, Fewer tags Horizontal flow barriers for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California 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 digital dataset defines the surface traces of regional features simulated as horizontal flow barriers in the Death Valley regional ground-water flow system (DVRFS) transient flow model, an approximately 45,000 square-kilometer area of southern Nevada and California. The DVRFS transient groundwater flow model is one of several regional-scale models developed by the U.S. Geological Survey (USGS) for the U.S. Department of Energy... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, environment, flow model, geoscientificInformation, ground water, horizontal flow barrier, hydrogeologic framework model, hydrogeology, hydrology, inlandWaters, inlandWaters, potential ground-water flow barrier, southern Nevada, transient ground-water model, Fewer tags Altitudes of the top of model layers for the transient ground-water flow model, Death Valley regional ground-water flow system, Nevada and California 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 digital data set defines the altitudes of the tops of 16 model layers simulated in the Death Valley regional ground-water flow system (DVRFS) transient flow model. The area simulated by the DVRFS transient ground-water flow model is an approximately 45,000 square-kilometer region of southern Nevada and California. The thickness of model layers is derived by sequentially subtracting the altitudes of the uppermost to the lowermost... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, MODFLOW-2000, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernadino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, environment, flow model, geoscientificInformation, ground water, hydrogeology, hydrology, inlandWaters, inlandWaters, model layers, model-layer thickness, southern Nevada, steady state ground-water model, transient ground-water model, Fewer tags Lake Tahoe Generalized California Department of Water Resources Well Locations 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... Categories: pre-SM502.8; Tags: California, Environment, Geoscientific Information, Ground water, Inland waters, All tags... Lake Tahoe, NSDI, Nevada, USGS Science Data Catalog (SDC), Fewer tags 2012 Water Levels - Mojave River and the Morongo Groundwater Basins 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. During 2012, the U.S. Geological Survey and other agencies made approximately 2,500 water-level measurements in the Mojave River and Morongo groundwater basins. These data document recent conditions and, when compared with previous data, changes in groundwater levels. A water-level contour map was drawn using data from about 575 wells, providing coverage for most of the basins. Twenty-eight hydrographs show long-term (1930-2012)... Categories: pre-SM502.8; Tags: California, Mojave Desert, Mojave River, Morongo, Morongo Basin, All tags... NSDI, San Bernardino County, San Bernardino, California, Southern California, USGS, USGS, USGS Science Data Catalog (SDC), contours, contours, drainage basin, drainage basin, ground water, ground water, ground-water, ground-water, groundwater, groundwater, hydrology, hydrology, inland waters, inland waters, inlandWaters, levels, levels, water level, water level, water table, water table, Fewer tags Depth to ground water contours of hydrographic area 153, Diamond Valley, 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 consists of depth to ground water contours for hydrographic-area (HA) 153, Diamond Valley, Nevada. These data represent static ground-water levels measured in the HA during March and April of 2001. These data were created as part of an effort to provide statewide information on water table and depth to ground water for Nevada. Digital water-table contours from 38 published reports representing data from 1947 to 2004... Categories: pre-SM502.8; Tags: Diamond Valley, Elko County, Eureka County, Great Basin, HA 153, All tags... NSDI, Nevada, USGS Science Data Catalog (SDC), contour, depth to water, ground water, inlandWaters, Fewer tags Subregions of the Death Valley regional ground-water flow system, Nevada and California 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 digital data set defines the subregions of the transient ground-water flow model of the Death Valley regional ground-water flow system (DVRFS). Subregions are used to more readily describe and evaluate the source, occurrence, and movement of ground water within and between the smaller areas of the DVRFS, which is an approximately 45,000 square-kilometer region of southern Nevada and California. The subregions, first described... Categories: pre-SM502.8; Tags: Amargosa Desert, Ash Meadows, California, California Valley, Chicago Valley, All tags... China Ranch, Clark County, Clayton Valley, Coal Valley, Death Valley, Death Valley regional ground-water flow system, Esmeralda County, Eureka Valley, Franklin Lake, Franklin Well, Garden Valley, Inyo County, Kern County, Las Vegas Valley, Lincoln County, Mesquite Valley, Mineral County, Mono County, NSDI, Nevada, Nevada Test Site, Nye County, Oasis Valley, Owlshead Mountains, Pahranagat Range, Pahrump Valley, Panamint Range, Penoyer Valley, Railroad Valley, Resting Spring, Saline Valley, San Bernardino County, Sarcobatus Flat, Sheep Range, Shoshone, Silurian Valley, Spring Mountains, Stewart Valley, Stone Cabin Valley, Tecopa, USGS Science Data Catalog (SDC), Yucca Mountain, eastern California, evapotranspiration, flow model, ground water, ground-water discharge, ground-water pumping, ground-water recharge, hydraulic conductivity, hydraulic head, hydraulic-head observation, hydrogeologic framework model, hydrogeology, hydrology, lateral ground-water flow, lateral ground-water model boundary, net infiltration, southern Nevada, spring flow, steady state ground-water model, transient ground-water model, water level, water well, Fewer tags 1:750,000-scale static ground-water levels of 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 consists of static ground-water levels for the State of Nevada based on a 1974 ground-water map (Rush, 1974) published by the Nevada Department of Conservation and Natural Resources, Division of Water Resources, State Engineers Office. These data were digitized from the source as part of an effort to provide statewide information on water table and depth to ground water for Nevada. Reference Cited Rush, F.E., 1974,... Categories: pre-SM502.8; Tags: Depth to ground water, Great Basin, NSDI, Nevada, Static ground-water levels, All tags... USGS Science Data Catalog (SDC), environment, geoscientificInformation, inlandWaters, inlandWaters, Fewer tags Monthly inflows to the surface-water network for the Central Valley Hydrologic Model (CVHM) 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 digital dataset contains the monthly inflows to the surface-water network for the Central Valley Hydrologic Model (CVHM). The Central Valley encompasses an approximate 50,000 square-kilometer region of California. The complex hydrologic system of the Central Valley is simulated using the USGS numerical modeling code MODFLOW-FMP (Schmid and others, 2006). This simulation is referred to here as the CVHM (Faunt, 2009). Utilizing... Categories: pre-SM502.8; Tags: Alameda County, Amador County, Butte County, CV-RASA, Calaveras County, All tags... California, Central Valley, Central Valley Aquifer, Central Valley Hydrologic Model, Central Valley, California, Colusa County, Contra Costa County, El Dorado County, Flow Model CVHM, Fresno County, Glenn County, Groundwater Availability of the Central Valley Aquifer, Humboldt County, Kern County, Kings County, Lake County, Madera County, Mariposa County, Mendocino County, Merced County, Monterey County, NSDI, Napa County, Nevada County, Placer County, Sacramento County, Sacramento Valley, San Benito County, San Joaquin County, San Joaquin Valley, San Luis Obispo County, Santa Barbara County, Santa Clara County, Shasta County, Solano County, Sonoma County, Stanislaus County, Sutter County, Tehama County, Texture Model, Trinity County, Tulare County, Tuolumne County, USGS Science Data Catalog (SDC), Ventura County, Yolo County, Yuba County, geoscientificinformation, groundwater, hydrogeology, hydrology, inflow, inlandWaters, inlandWaters, model, surface water, Fewer tags « 1 2 3 4 5 ... 39 »