MODFLOW-NWT groundwater flow model used to evaluate groundwater flow in the Elkhorn and Loup River Basins, Central Nebraska, Phase Three: U.S. Geological Survey data release
The U.S. Geological Survey (USGS) refined the spatial and temporal discretization
of a previously modeled area (Phase 1: https://pubs.usgs.gov/sir/2008/5143/ and
Phase 2: https://pubs.usgs.gov/sir/2010/5149/) which focused on a 30,000-square-mile
area of the High Plains aquifer. Regional groundwater-flow models were constructed 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 during the pre-1940 through 2010
period (including predevelopment [pre-1895], early development [1895–1940], and
historical development [1940 through 2010] conditions) using an automated parameter-
estimation method. The calibrated model was then used to simulate hypothetical
development conditions (2011 through 2060). To assess the impact of wells on aquifer
depletions, additional wells were simulated throughout the model domain and pumped
for 50 years. The percentage of each well’s withdrawal after 50 years, which was
compensated by aquifer reductions to stream base flow, storage, or evapotranspiration,
was computed and mapped. This data release also includes the MODFLOW-NWT
(version 1.0.7) source code. This USGS data release contains all of the input and output
files for the model described in the associated model documentation report
(https://doi.org/10.3133/sir20185106).
Complete Metadata
| accessLevel | public |
|---|---|
| bureauCode |
[
"010:12"
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|
| contactPoint |
{
"fn": "Amanda T. Flynn",
"@type": "vcard:Contact",
"hasEmail": "mailto:aflynn@usgs.gov"
}
|
| description | The U.S. Geological Survey (USGS) refined the spatial and temporal discretization of a previously modeled area (Phase 1: https://pubs.usgs.gov/sir/2008/5143/ and Phase 2: https://pubs.usgs.gov/sir/2010/5149/) which focused on a 30,000-square-mile area of the High Plains aquifer. Regional groundwater-flow models were constructed 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 during the pre-1940 through 2010 period (including predevelopment [pre-1895], early development [1895–1940], and historical development [1940 through 2010] conditions) using an automated parameter- estimation method. The calibrated model was then used to simulate hypothetical development conditions (2011 through 2060). To assess the impact of wells on aquifer depletions, additional wells were simulated throughout the model domain and pumped for 50 years. The percentage of each well’s withdrawal after 50 years, which was compensated by aquifer reductions to stream base flow, storage, or evapotranspiration, was computed and mapped. This data release also includes the MODFLOW-NWT (version 1.0.7) source code. This USGS data release contains all of the input and output files for the model described in the associated model documentation report (https://doi.org/10.3133/sir20185106). |
| distribution |
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| identifier | http://datainventory.doi.gov/id/dataset/USGS_e812b36d-631c-49c2-9c7d-6873be715bdb |
| keyword |
[
"Elkhorn River",
"Groundwater",
"Groundwater Model",
"High Plains Aquifer",
"InlandWaters",
"Loup River",
"MODFLOW-NWT",
"Nebraska",
"Ogallala Aquifer",
"Sand Hills",
"Soil-Water-Balance Code",
"Streamflow depletion",
"USGS:e812b36d-631c-49c2-9c7d-6873be715bdb",
"environment",
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"inlandWaters",
"usgsgroundwatermodel"
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|
| modified | 2020-11-17T00:00:00Z |
| publisher |
{
"name": "U.S. Geological Survey",
"@type": "org:Organization"
}
|
| spatial | -102.142168073, 40.581077344, -97.251923792, 42.959968000 |
| theme |
[
"Geospatial"
]
|
| title | MODFLOW-NWT groundwater flow model used to evaluate groundwater flow in the Elkhorn and Loup River Basins, Central Nebraska, Phase Three: U.S. Geological Survey data release |
