Download or read book Regional Ground water flow Models of Surficial Sand and Gravel Aquifers Along the Mississippi River Between Brainerd and St Cloud Central Minnesota written by J. F. Ruhl and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional ground water flow models of surficial sand and gravel aquifers along the Mississippi River between Brainerd and St Cloud central Minnesota written by and published by DIANE Publishing. This book was released on with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrology of the Mississippi River Valley Alluvial Aquifer South central United States written by D. J. Ackerman and published by . This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fran ois Mathurin Adalbert Bar n de Courcy written by Pablo Diener and published by . This book was released on 2002 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeologic Framework and Simulation of Ground water Flow and Travel Time in the Shallow Aquifer System in the Area of Naval Support Activity Memphis Millington Tennessee written by and published by . This book was released on 1997 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Bottoms Regional Ground water Flow Model written by Gary R. Clark and published by . This book was released on 1997 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North central Florida Active Water table Regional Groundwater Flow Model written by Louis H. Motz and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents how the flow model simulates the effects that increased groundwater pumpage in north-central Florida will have on water levels in the surficial aquifer system and the upper Florida aquifer, groundwater system water budgets and spring flows.
Download or read book Simulated Hydrologic Responses of the Quashnet River Stream aquifer System to Proposed Ground water Withdrawals Cape Cod Massachusetts written by Paul M. Barlow and published by . This book was released on 1993 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: ... The purposes of this report are to describe (1) the hydrologic characteristics of the Quashnet River stream aquifer system and (2) the responses of the system to proposed ground water withdrawals simulated by use of a numerical model of ground water flow; these reponses to pumping are assessed in terms of drawdowns in the altitude of the water table, streamflow depletions, and sources of water to the river and the simulated supply well; in this report, the Quashnet river stream aquifer system is defined as that area extending approximately from the Mashpee River on the east to the Coonamessett River on the west and from Nantucket Sound to approximately 1 mile north of Johns Pond; this report is based on ground and surface water data collected during the study and compiled from engineers' reports and USGS ground and surface water data bases; physical characteristics of the Quashnet and Childs Rivers (streamflow, stream velocity, width and depth), surface altitude of Johns Pond, and hydraulic heads within the basin were measured from January 1990 through September 1991 ...
Download or read book Definition of the Geohydrologic Framework and Preliminary Simulation of Ground water Flow in the Mississippi Embayment Aquifer System Gulf Coastal Plain United States written by J. Kerry Arthur and published by . This book was released on 1990 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain written by Courtney Killian and published by . This book was released on 2018 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Characterizing Spatial and Temporal Changes and Driving Factors of Groundwater and Surface water Interactions Within the Mississippi Portion of the Mississippi Alluvial Plain written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Recalibration of a Ground water Flow Model of the Mississippi River Valley Alluvial Aquifer in Southeastern Arkansas 1918 1998 with Simulations of Hydraulic Heads Caused by Projected Ground water Withdrawals Through 2049 written by Gregory P. Stanton and published by . This book was released on 2003 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Steady state Flow and Advective Transport in the Eastern Snake River Plain Aquifer System Idaho written by D. J. Ackerman and published by . This book was released on 1995 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The regional aquifer system of the eastern Snake River Plain is an important component of the hydrologic system in eastern Idaho. The aquifer was thought to be the largest unified ground-water reservoir on the North American continent but is probably second to the Floridian aquifer in the southeastern United States. Flow in the aquifer is from major recharge areas in the northeastern part of the plain to discharge areas in the southwestern part. A comprehensive analysis of the occurrence and movement of water in the aquifer was presented by Garabedian. The analysis included a description of the recharge and discharge, the hydraulic properties, and a numerical model of the aquifer. The purposes of this report are to: (1) describe compartments in the aquifer that function as intermediate and regional flow systems, (2) describe pathlines for flow originating at or near the water table, and (3) quantify traveltimes for adjective transport originating at or near the water table. The model constructed for this study and described in this report will aid those concerned with the management and protection of the aquifer. The model will serve as a tool to further our understanding of the aquifer and will aid in assessing the needs for future flow and transport studies of the aquifer.
Download or read book Ground Water Flow Model at Fort Devens Massachusetts written by and published by . This book was released on 1993 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to develop a regional ground water flow model to assist in determination of cumulative impacts to ground water quality from the multiple contaminated sites at Fort Devens. Fort Devens is a U.S. Army post in Worcester and Middlesex counties in central Massachusetts. There are a number of contaminated and potentially contaminated areas on the post that are currently being studied. The geology of Fort Devens was chiseled by the continental glaciers of the Pleistocene epoch. The glaciers deepened existing river valleys by eroding the bedrock and depositing till (poorly sorted clay, silt, and sand), glacial outwash (well sorted, sandy deposits from rivers and melting glaciers), drumlins (hills of till), kames (hills of sand), kettles (depressions caused by buried blocks of ice that melt), and other landforms characteristic of glacial terrain. The bedrock beneath the unconsolidated glacial sediments consists primarily of metamorphic rocks (old crystalline rocks). Ground water exists at Fort Devens in two geologic formations. The primary aquifer is the glacial drift that overlies the bedrock. This aquifer consists of well sorted sands and gravels, fine sands, silt, and clay; and is known as the glacial outwash aquifer. It is capable of supplying large quantities of water. The aquifer is used by Fort Devens and nearby municipalities for water supply.
Download or read book Calibration and Sensitivity Analysis of a Ground water Flow Model of the Coastal Lowlands Aquifer System in Parts of Louisiana Mississippi Alabama and Florida written by Angel Martin and published by . This book was released on 1990 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recalibration of a ground water flow model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas 1918 1998 with simulations of water levels caused by projected ground water withdrawals through 2049 written by T. B. Reed and published by . This book was released on 2003 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Regional Groundwater Flow Model of the Redwall Muav Coconino and Alluvial Basin Aquifer Systems of Northern and Central Arizona written by D. R. Pool and published by . This book was released on 2015-02-16 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
