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Author : Yongxue Xu
Publisher :
ISBN 13 : 9789292200008
Total Pages : 207 pages
Book Rating : 4.2/5 ( download)
Download or read book Groundwater Recharge Estimation in Southern Africa written by Yongxue Xu and published by . This book was released on 2003 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : I. Simmers
Publisher : Springer Science & Business Media
ISBN 13 : 9401577803
Total Pages : 503 pages
Book Rating : 4.4/5 (15 download)
Download or read book Estimation of Natural Groundwater Recharge written by I. Simmers and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Chris M. Henry
Publisher :
ISBN 13 :
Total Pages : 1010 pages
Book Rating : 4.:/5 (112 download)
Download or read book An Integrated Approach to Estimating Groundwater Recharge and Storage Variability in Southern Mali, Africa written by Chris M. Henry and published by . This book was released on 2011 with total page 1010 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater recharge in southern Mali is investigated using a variety of methods. The aquifer system comprises a surficial unconfined aquifer in laterite that is hydraulically connected by vertical fractures through a sedimentary rock layer to a deep fractured semi-confined aquifer. Observed groundwater storage fluctuations from historical water level data correlate with GRACE satellite terrestrial water storage (TWS) variations, with peaks in September and lows in May; however, soil-moisture corrected GRACE data peaked in November due to the GLDAS model poorly predicting the timing of soil-water storage changes. Recharge modeling using HELP gave an average annual net recharge of 132.2 mm (12.6% of rainfall), comparing well with estimates from historical water level (149.1 mm; 16.4%) and GRACE (149.7 mm; 14.8%) data. Major ion chemistry suggests groundwater is fresh (average TDS of 205 mg/L) and rapidly recharged. d18O and d2H concentrations in groundwater and precipitation indicate July-September rainfall as the recharge source.
Author : K. Keetile
Publisher :
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (952 download)
Download or read book Groundwater Recharge Estimation in a Fractured and Semi-arid Environment written by K. Keetile and published by . This book was released on 2001 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nemaxwi Phathutshedzo
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (1 download)
Download or read book Estimation of Groundwater Recharge Response from Rainfall Events in a SSemi-and Fractured Acquifer written by Nemaxwi Phathutshedzo and published by . This book was released on 2015 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Alexander Bean
Publisher :
ISBN 13 :
Total Pages : 310 pages
Book Rating : 4.:/5 (56 download)
Download or read book A Critical Review of Recharge Estimation Methods Used in Southern Africa written by John Alexander Bean and published by . This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yongxin Xu
Publisher : Taylor & Francis
ISBN 13 : 1134128002
Total Pages : 368 pages
Book Rating : 4.1/5 (341 download)
Download or read book Groundwater Pollution in Africa written by Yongxin Xu and published by Taylor & Francis. This book was released on 2006-10-05 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2000, various UN organizations launched a collaborative effort to assess the vulnerability of groundwater in several African cities. The project addressed the issue of aquifer vulnerability and the protection of groundwater quality. This book is a collection of thirty peer-reviewed papers on the topic, and provides a glimpse of the situation acr
Author : Yongxin Xu
Publisher :
ISBN 13 : 9781770055742
Total Pages : 196 pages
Book Rating : 4.0/5 (557 download)
Download or read book Groundwater Recharge Estimation of Table Mountain Group Aquifer Systems with Case Studies written by Yongxin Xu and published by . This book was released on 2007 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : D.M.J. MacDonald
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (871 download)
Download or read book Estimation of groundwater recharge in weathered basement aquifers, Southern Zimbabwe written by D.M.J. MacDonald and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jude Cobbing
Publisher : CRC Press
ISBN 13 : 1134611331
Total Pages : 300 pages
Book Rating : 4.1/5 (346 download)
Download or read book Assessing and Managing Groundwater in Different Environments written by Jude Cobbing and published by CRC Press. This book was released on 2019-01-22 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection of papers is a snapshot of modern hydrogeology in which highly technical methods and approaches sit side-by-side with overlapping legal, social, organisational, institutional and governance considerations. Groundwater is integral to many human and environmental systems. Indeed, there appears to be a growing realisation that some of the most pressing physical problems in the field of hydrogeology - over-abstraction, salinization or pollution - can only really be solved by taking a multi-disciplinary approach to the issues that takes all other related professions into account. Whilst a ‘technical’ solution may be readily deciphered, the larger challenge usually lies in the sustainably-funded and widely-accepted implementation of that measure. This book ranges from discussion and debate on the hot topic of hydraulic fracturing of wells or ‘fraccing’ for shale gas and its potential to disrupt groundwater systems, to the application of highly technical modelling procedures to help solve complex, real world problems. It is a window on the preoccupations of modern hydrogeologists and an insight into the way in which hydrogeological techniques and methods are being holistically adapted to address problems in the real world. This book is targeted at professional hydrogeologists, sociologists, experts in governance, law and policy as well as ecologists and other professionals that nowadays all sit alongside groundwater understanding. The book will also appeal to politicians, resource managers, regulators and others interested in sustainable water supply.
Author : Segun Adelana
Publisher : CRC Press
ISBN 13 : 0203889495
Total Pages : 518 pages
Book Rating : 4.2/5 (38 download)
Download or read book Applied Groundwater Studies in Africa written by Segun Adelana and published by CRC Press. This book was released on 2008-09-23 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater is Africa‘s most precious natural resource, providing reliable water supplies for many people. Further development of groundwater resources is fundamental to increasing access to safe water across the continent to meet coverage targets and reduce poverty. There is also an increasing interest in the use of groundwater for irrigated
Author : Ian Simmers
Publisher : Routledge
ISBN 13 : 1351419560
Total Pages : 326 pages
Book Rating : 4.3/5 (514 download)
Download or read book Recharge of Phreatic Aquifers in (Semi-)Arid Areas written by Ian Simmers and published by Routledge. This book was released on 2017-10-19 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater use is of fundamental importance to meet the rapidly expanding urban, industrial and agricultural water requirements in (semi) arid areas. Quantifying the current rate of groundwater recharge and define its variability in space and time are thus prerequesites for efficient groundwater resource managment in these regions, where such resources are often the key to economic development. Attention focuses on recharge of phreatic aquifers, often the most readily-available and affordable source of water in (semi) arid regions. These aquifers are also the most susceptible to contamination, with the recharge rate determining their level of vulnerability. (Semi) arid zone recharge can be highly variable, the greater the aridity, the smaller and potentially more variable the natural flux. Its determination is an iterative process, involving progressive data collection and resource evaluation; there is also a need to use more than one technique to verify results. Direct, localised and indirect recharge mechanisms from a spectrum of known sources are addressed in the framework of recharge from precipitation, intermittant flow and permanent water bodies. The approach taken for each of these reflects the nature and current understanding of the processes involved. The volume also reviews current recharge estimation challenges, outlines recent developments and offers guidance for potential solutions.
Author : L Zhang
Publisher : CSIRO PUBLISHING
ISBN 13 : 0643106103
Total Pages : 28 pages
Book Rating : 4.6/5 (431 download)
Download or read book Surface Water Balance for Recharge Estimation - Part 9 written by L Zhang and published by CSIRO PUBLISHING. This book was released on 2002-10-09 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This addition to The Basics of Recharge and Discharge series deals with the surface water balance approaches that form the traditional basis of hydrological investigations. It explores both field methods and modelling methods for measuring or estimating the different parts of the water balance, including rainfall, evaporation, run-off and soil water storage. The authors discuss the concepts required to understand a surface water balance result or to set up an experiment. As water balance studies can be both time-consuming and expensive, this report will give readers a better understanding of water balance approaches and the considerations before going into a water balance study for the purpose of deep drainage.
Author : N. Jovanovic
Publisher :
ISBN 13 :
Total Pages : 150 pages
Book Rating : 4.:/5 (83 download)
Download or read book Reducing Uncertainties of Evapotranspiration and Preferential Flow in the Estimation of Groundwater Recharge written by N. Jovanovic and published by . This book was released on 2012 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Teklebirhan Arefaine Gebru
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659437342
Total Pages : 116 pages
Book Rating : 4.4/5 (373 download)
Download or read book Groundwater Recharge Estimation of Illala Catchment, Northern Ethiopia written by Teklebirhan Arefaine Gebru and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the spatial and temporal variability of groundwater recharge and the aquifer properties of Illala Catchment in the dry land area of Northern Ethiopia. This book was used a GIS based WetSpass modeling and chloride ion mass balance methods to estimate the water balance component of the area. So, this book can serve as a basic reference in the arena of hydrology and hydro geology.
Author : L. Wang
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (731 download)
Download or read book A literature review of recharge estimation and groundwater resource assessment in Africa written by L. Wang and published by . This book was released on 2010 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : South Africa. Water Research Commission
Publisher :
ISBN 13 :
Total Pages : 452 pages
Book Rating : 4.F/5 ( download)
Download or read book Technical Report written by South Africa. Water Research Commission and published by . This book was released on 1998 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
