Regional Ground Water Flow Models Of Surficial Sand And Gravel Aquifers Along The Mississippi River Between Brainerd And St Cloud Central Minnesota
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Regional ground water flow models of surficial sand and gravel aquifers along the Mississippi River between Brainerd and St Cloud central Minnesota
Author | : Anonim |
Publsiher | : DIANE Publishing |
Total Pages | : 26 |
Release | : 2024 |
Genre | : Electronic Book |
ISBN | : 9781428984509 |
Download Regional ground water flow models of surficial sand and gravel aquifers along the Mississippi River between Brainerd and St Cloud central Minnesota Book in PDF, Epub and Kindle
Numerical Simulation of Ground water Flow in La Crosse County Wisconsin and Into Nearby Pools of the Mississippi River
Author | : R. J. Hunt,David A. Saad,Dawn M. Chapel |
Publsiher | : Unknown |
Total Pages | : 52 |
Release | : 2003 |
Genre | : Electronic government information |
ISBN | : UOM:39015060768895 |
Download Numerical Simulation of Ground water Flow in La Crosse County Wisconsin and Into Nearby Pools of the Mississippi River Book in PDF, Epub and Kindle
Hydrology of the Mississippi River Valley Alluvial Aquifer South central United States
Author | : D. J. Ackerman |
Publsiher | : Unknown |
Total Pages | : 84 |
Release | : 1989 |
Genre | : Aquifers |
ISBN | : UCR:31210025295146 |
Download Hydrology of the Mississippi River Valley Alluvial Aquifer South central United States Book in PDF, Epub and Kindle
Analysis of Ground Water Flow Along a Regional Flow Path of the Midwestern Basins and Arches Aquifer System in Ohio Water Resources Investigations Report 94 4105
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 40 |
Release | : 1994 |
Genre | : Electronic Book |
ISBN | : UCR:31210025712504 |
Download Analysis of Ground Water Flow Along a Regional Flow Path of the Midwestern Basins and Arches Aquifer System in Ohio Water Resources Investigations Report 94 4105 Book in PDF, Epub and Kindle
Water resources Investigations Report
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 48 |
Release | : 2003 |
Genre | : Hydrology |
ISBN | : MINN:31951D02487564Q |
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Hydrogeology and Ground water Availability in Southwest McLean and Southeast Tazewell Counties
Author | : Anonim |
Publsiher | : Unknown |
Total Pages | : 150 |
Release | : 1998 |
Genre | : Aquifers |
ISBN | : UIUC:30112040059658 |
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MODFLOW Ground water Model
Author | : S. A. Leake,Devin L. Galloway |
Publsiher | : Unknown |
Total Pages | : 52 |
Release | : 2007 |
Genre | : Aquifers |
ISBN | : UCR:31210024784728 |
Download MODFLOW Ground water Model Book in PDF, Epub and Kindle
A new computer program was developed to simulate vertical compaction in models of regional ground-water flow. The program simulates ground-water storage changes and compaction in discontinuous interbeds or in extensive confining units, accounting for stress-dependent changes in storage properties. The new program is a package for MODFLOW, the U.S. Geological Survey modular finite-difference ground-water flow model. Several features of the program make it useful for application in shallow, unconfined flow systems. Geostatic stress can be treated as a function of water-table elevation, and compaction is a function of computed changes in effective stress at the bottom of a model layer. Thickness of compressible sediments in an unconfined model layer can vary in proportion to saturated thickness.
Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain
Author | : Courtney Killian |
Publsiher | : Unknown |
Total Pages | : 89 |
Release | : 2018 |
Genre | : Electronic Book |
ISBN | : OCLC:1050113776 |
Download Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain Book in PDF, Epub and Kindle
The Mississippi Alluvial Plain, a robust agricultural region in the South-Central United States, provides commodities across the United States and around the world. Water for irrigation, which is necessary due to irregular rainfall patterns during the growing season, is withdrawn largely from the Mississippi River Valley Alluvial aquifer, one of the most intensely used aquifers in the United States. The groundwater-dependent region has observed recent declines in groundwater and streamflow levels, raising concerns about the availability and use of fresh-water resources. Declining water levels have prompted investigation into the current understanding of groundwater and surface water interaction. Previous research does not adequately quantify the unobservable exchange of water between surface-water bodies and the underlying aquifer. This research was designed to advance the current understanding of the interaction between groundwater and surface water through the quantification of spatial and temporal trends in streamflow and groundwater level changes and the use of high-resolution spatial estimates of streambed hydraulic conductivity. Changes in streamflow and groundwater levels were quantified with the use of hydrograph-separation techniques and trend analyses. High-resolution estimates of streambed hydraulic conductivity were found through the correlation of waterborne continuous resistivity profiling data to hydraulic conductivity and streambed hydraulic conductivity estimates were incorporated into the existing Mississippi Embayment Regional Aquifer Study (MERAS) groundwater-flow model. Site-specific empirical relationships between resistivity and hydraulic conductivity were developed with near-stream borehole geophysical logs to improve model estimates of streambed hydraulic conductivity. Results of the quantification of changes in streamflow and groundwater levels suggested agricultural groundwater withdrawals for irrigation to be the primary source of groundwater-level declines. Results from the incorporation of high-resolution estimates of streambed hydraulic conductivity showed that the existing groundwater-flow model is sensitive to changes in streambed hydraulic conductivity, which may impact model accuracy. The incorporation of streambed hydraulic conductivity estimates derived from site-specific empirical relationships impacted MERAS model water-budget estimates. Information gained from this research will be used to improve the existing groundwater-flow model, which acts as a decision-support tool for water-resource managers at state and local levels to make informed water-use decisions for the conservation of fresh-water resources for sustainable agricultural irrigation practices.