Author: David M. PatrickPublisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 110
Book Description
Ground-water Models for the Hattiesburg and Laurel, Mississippi Regions
Author: David M. PatrickPublisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 110
Book Description
Selected Water Resources Abstracts
Author: Analysis of Ground-water Flow in the Catahoula Aquifer System in the Vicinity of Laurel and Hattiesburg, Mississippi
Author: Keith J. HalfordPublisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 88
Book Description
Groundwater Models for Resources Analysis and Management
Author: Aly I. El-KadiPublisher: CRC Press
ISBN: 1351443895
Category : Technology & Engineering
Languages : en
Pages : 384
Book Description
Written by renowned experts in the field, this book assesses the status of groundwater models and defines models and modeling needs in the 21st century. It reviews the state of the art in model development and application in regional groundwater management, unsaturated flow/multiphase flow and transport, island modeling, biological and virus transport, and fracture flow. Both deterministic and stochastic aspects of unsaturated flow and transport are covered. The book also introduces a unique assessment of models as analysis and management tools for groundwater resources. Topics covered include model vs. data uncertainty, accuracy of the dispersion/convection equation, protocols for model testing and validation, post-audit studies, and applying models to karst aquifers.
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 KillianPublisher:
ISBN:
Category :
Languages : en
Pages : 89
Book Description
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 Water for irrigation, which is necessary due to irregular rainfall patterns during the growing season, is withdrawn largely from the Mississippi River Valley Alluvial aquifer, one of the most intensely used aquifers in the United States.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.
Regional ground-water-flow models of surficial sand and gravel aquifers along the Mississippi River between Brainerd and St. Cloud, central Minnesota
Author: Publisher: DIANE Publishing
ISBN: 142898450X
Category :
Languages : en
Pages : 26
Book Description
Mississippi Geology
Author: Enhancements to the Mississippi Embayment Regional Aquifer Study (MERAS) Groundwater-flow Model and Simulations of Sustainable Water-level Scenarios
Author: Brian R. ClarkPublisher:
ISBN:
Category : Aquifers
Languages : en
Pages : 0
Book Description
Regional Ground-water Flow Near Richton Dome, Mississippi
Author: Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface-water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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 grou