estimating groundwater recharge

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Estimating Groundwater Recharge

Author : Richard W. Healy
ISBN : 9781139491396
Genre : Science
File Size : 48. 7 MB
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Understanding groundwater recharge is essential for successful management of water resources and modeling fluid and contaminant transport within the subsurface. This book provides a critical evaluation of the theory and assumptions that underlie methods for estimating rates of groundwater recharge. Detailed explanations of the methods are provided - allowing readers to apply many of the techniques themselves without needing to consult additional references. Numerous practical examples highlight benefits and limitations of each method. Approximately 900 references allow advanced practitioners to pursue additional information on any method. For the first time, theoretical and practical considerations for selecting and applying methods for estimating groundwater recharge are covered in a single volume with uniform presentation. Hydrogeologists, water-resource specialists, civil and agricultural engineers, earth and environmental scientists and agronomists will benefit from this informative and practical book. It can serve as the primary text for a graduate-level course on groundwater recharge or as an adjunct text for courses on groundwater hydrology or hydrogeology. For the benefit of students and instructors, problem sets of varying difficulty are available at http://wwwbrr.cr.usgs.gov/projects/GW_Unsat/Recharge_Book/

Estimation Of Natural Groundwater Recharge

Author : I. Simmers
ISBN : 9789401577809
Genre : Science
File Size : 33. 77 MB
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In view of the rapidly expanding urban, industrial and agri cultural water requirements in many areas and the normally associated critical unreliability of surface water supplies in arid and semi-arid zones, groundwater exploration and use is of fundamental importance for logical economic development. Two interrelated facets should be evident in all such groundwater projects : (a) definition of groundwater recharge mechanisms and characteristics for identified geological formations, in order to determine whether exploitation in the long-term involves 'mining' of an es sentially 'fossil' resource or withdrawal from a dynamic supply. A solution to this aspect is essential for development of a re source management policy: (b) determination of recharge variability in time and space to thus enable determination of total aquifer input and to quantify such practical aspects as 'minimum risk' waste disposal locations and artificial recharge potential via (e.g.) devegetation or engi neering works. However, current international developments relating to natural recharge indicate the following 'problems' ; no single comprehensive estimation technique can yet be iden tified from the spectrum of methods available; all are reported to give suspect results.

Groundwater Recharge

Author : David N. Lerner
ISBN : UCSD:31822009598566
Genre : Groundwater flow
File Size : 36. 95 MB
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Estimates Of Groundwater Recharge To The Yakima River Basin Aquifer System Washington For Predevelopment And Current Landuse And Landcover Conditions

Author :
ISBN : 1422324710
Genre :
File Size : 82. 97 MB
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A Comparison Of Two Methods Used To Estimate Groundwater Recharge In Dane County Wisconsin

Author : Susan Karin Swanson
ISBN : WISC:89058874629
Genre : Groundwater recharge
File Size : 63. 90 MB
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Development Of A Digital Method For Estimating Groundwater Recharge And Discharge Rates

Author : Yu-Feng Lin
ISBN : WISC:89081050155
Genre :
File Size : 33. 95 MB
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Groundwater Pollution Aquifer Recharge And Vulnerability

Author : N. S. Robins
ISBN : 1897799985
Genre : Technology & Engineering
File Size : 31. 1 MB
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The primary groundwater management issue in many countries today is pollution. The key to understanding the transport of a pollutant from the ground surface or near surface into an aquifer is an understanding of recharge. This allows the vulnerability of aquifers to pollution to be classified and appropriate land zones to be defined. This text provides an up-to-date description of the relationship between pollution, recharge and vulnerability set against the current groundwater protection policies of the UK and Ireland. There are keynote overviews for each topic.

Swb A Modified Thornthwaite Mather Soil Water Balance Code For Estimating Groundwater Recharge

Author : Groundwater Program
ISBN : 1500296872
Genre : Technology & Engineering
File Size : 82. 11 MB
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A Soil-Water-Balance (SWB) computer code has been developed to calculate spatial and temporal variations in groundwater recharge. The SWB model calculates recharge by use of commonly available geographic information system (GIS) data layers in combination with tabular climatological data. The code is based on a modified Thornthwaite-Mather soil-water-balance approach, with components of the soil- water balance calculated at a daily timestep. Recharge calculations are made on a rectangular grid of computational elements that may be easily imported into a regional ground- water-flow model. Recharge estimates calculated by the code may be output as daily, monthly, or annual values.

Estimating Groundwater Recharge Using The Soil Water Balance Method In Khalavha And Siloam Villages

Author : Mashudu Mmbadi
ISBN : OCLC:853573493
Genre : Groundwater
File Size : 90. 34 MB
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Geochemical Processes Weathering And Groundwater Recharge In Catchments

Author : O.M. Saether
ISBN : 9054106468
Genre : Technology & Engineering
File Size : 34. 12 MB
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Geochemical Processes, Weathering and Groundwater Recharge in Catchments is a specialist book concerned with the natural processes taking place where water interacts with minerals and organic matter at the earth’s surface, in soils or within aquifers. It focuses on the all important interface between the hydrological and geochemical cycles in terrestrial ecosystems, and is thus particularly relevant to understanding the environment. The book is intended primarily as a reference text for graduate students in Earth Sciences, Hydrology or Environmental Sciences, but will be a useful introduction to those studying Chemistry, Biology or Forestry Studies. Geochemical Processes, Weathering and Groundwater Recharge in Catchments presents an overview of the current status of knowledge of catchment studies, with an outline of the challenges of future research. .

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