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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 release includes a polygon shapefile of grid cells attributed with values representing the simulated base-flow, evapotranspiration, and groundwater-storage depletions as a percentage of hypothetical well pumpage for the 2006-2055 time period. Depletions were simulated by the Phase-Two Elkhorn-Loup Model (ELM), constructed using MODFLOW-2005 (Harbaugh, 2005) with the Groundwater Vistas, version 5, software (Environmental...
Tags: Calamus River,
Dismal River,
Elkhorn River,
Elkhorn-Loup Model area,
High Plains aquifer, All tags...
Loup River,
Middle Loup River,
NSDI,
Nebraska,
North Loup River,
Ogallala aquifer,
South Loup River,
USGS Science Data Catalog (SDC),
evapotranspiration,
geohydrology,
geoscientficInformation,
groundwater,
groundwater availability,
groundwater irrigation,
groundwater management,
groundwater potential,
groundwater storage,
hydrologic models,
inlandWaters,
streamflow depletion,
surface-groundwater relations, Fewer tags
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To better understand the influence of human activities and natural processes on surface-water quality, the U.S. Geological Survey (USGS) developed the SPARROW (SPAtially Referenced Regressions On Watershed attributes) (Schwarz and others, 2006; Alexander and others, 2008) model. The framework is used to relate water-quality monitoring data to sources and watershed characteristics that affect the fate and transport of constituents to receiving surface-water bodies. The core of the model consists of using a nonlinear-regression equation to describe the non-conservative transport of contaminants from point and nonpoint sources on land to rivers, lakes and estuaries through the stream and river network. In North Carolina,...
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