Budget Analyst
Email:
aflynn@usgs.gov
Office Phone:
402-328-4144
Fax:
402-328-4101
ORCID:
0000-0001-9768-2076
Location
5231 South 19th
Lincoln
, NE
68512-1271
US
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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 2011-2060 time period. Depletions were simulated by the Phase-Three Elkhorn-Loup Model (ELM), constructed using MODFLOW-NWT (Niswonger and others, 2011). Each polygon represents one model grid cell, with pumping specified from either layer one or layer two of the model. All values are estimates and approximations. The phase three ELM simulated the High Plains aquifer in north-central Nebraska from predevelopment (pre-1895) through 2060 (Flynn and Stanton, 2018). The simulation was calibrated...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Shapefile;
Tags: Calamus River,
Dismal River,
Elkhorn River,
Loup River,
Middle Loup RIver, All tags...
Nebraska,
North Loup River,
Sand Hills,
South Loup River,
evapotranspiration,
geohydrology,
geoscientificInformation,
groundwater,
groundwater availability,
groundwater irrigation,
hydrologic models,
inlandWaters,
streamflow depletion, Fewer tags
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The U.S. Geological Survey, in cooperation with the Lewis and Clark, Lower Elkhorn, Lower Loup, Lower Platte North, Lower Niobrara, Middle Niobrara, Upper Elkhorn, and the Upper Loup Natural Resources Districts, designed a study to refine the spatial and temporal discretization of a previously modeled area. This updated study focused on a 30,000-square-mile area of the High Plains aquifer and constructed regional groundwater-flow models to evaluate the effects of groundwater withdrawal on stream base flow in the Elkhorn and Loup River Basins, Nebraska. The model was calibrated to match groundwater-level and base-flow data from the stream-aquifer system from pre-1940 through 2010 (including predevelopment [pre-1895],...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Ground-water and surface Water relations,
Groundwater Modeling,
Groundwater flow,
Groundwater movement,
High Plains aquifer, All tags...
Nebraska (NE),
Ogallala aquifer,
Principal aquifers,
USGS Science Data Catalog (SDC),
Water Resources,
alluvial aquifer,
groundwater irrigation,
groundwater resources, Fewer tags
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This data set contains 2,611 water levels collected by Natural Resources Districts in Central Nebraska. These water levels were collected by the districts to monitor groundwater levels within the districts. The water levels were provided to the USGS for use as calibration targets to the Elkhorn and Loup River Basin - Phase Three groundwater flow model. The water levels have not been previously published. This record serves as the publication record of the water levels in support of the Elkhorn and Loup River Basin - Phase Three groundwater flow model report.
Tags: Calamus River,
Dismal River,
Elkhorn River,
Loup River,
Middle Loup River, All tags...
Nebraska,
North Loup River,
Sand Hills,
South Loup River,
elevation,
groundwater,
groundwater availablity,
inlandWaters,
location, Fewer tags
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A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize...
Tags: Arkansas,
Illinois,
Kentucky,
LMG,
Louisiana, All tags...
Lower Mississippi Gulf Water Science Center,
MAP,
MRVA aquifer,
Mississippi,
Mississippi Alluvial Plain,
Mississippi Alluvial Plain,
Mississippi River Delta,
Mississippi River Valley alluvial aquifer,
Missouri,
Tennessee,
U.S. Geological Survey,
U.S.Geological Survey,
USGS,
Water Availability and Use Science Program,
aquifers,
geoscientificInformation,
ground water,
groundwater,
groundwater altitude,
groundwater levels,
inlandWaters,
potentiometric surface,
surface-water altitude,
water table, Fewer tags
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A potentiometric surface map for spring 2016 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were measured more than one time in a year and a small number of wells were measured continually. Streamgages were typically operated continuously. The potentiometric surface map for 2016 was created as part of the U.S. Geological Survey (USGS) Water Availability and Use Science Program to support investigations that characterize...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Arkansas,
Illinois,
Kentucky,
LMG,
Louisiana, All tags...
Lower Mississippi Gulf Water Science Center,
MAP,
MRVA aquifer,
Mississippi,
Mississippi Alluvial Plain,
Mississippi Alluvial Plain,
Mississippi River Delta,
Mississippi River Valley alluvial aquifer,
Missouri,
Tennessee,
U.S. Geological Survey,
U.S.Geological Survey,
USGS,
Water Availability and Use Science Program,
aquifers,
geoscientificInformation,
ground water,
groundwater,
groundwater levels,
inlandWaters,
potentiometric surface,
surface-water altitude,
water table, Fewer tags
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