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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 : Chris M. Henry
Publisher :
ISBN 13 :
Total Pages : 0 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 0 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 :
Publisher : Amer Society of Civil Engineers
ISBN 13 : 9780784405482
Total Pages : 106 pages
Book Rating : 4.4/5 (54 download)
Download or read book Standard Guidelines for Artificial Recharge of Ground Water written by and published by Amer Society of Civil Engineers. This book was released on 2001-01-01 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Standard Guidelines for Artificial Recharge of Ground Water describes the steps necessary to plan, design, construct, maintain, operate, and close a project for artificial recharge of groundwater. The recharge may be accomplished either by applying water to the ground surface for infiltration or by placing it directly into aquifers through wells. This Standard also describes the economic, environmental, and legal considerations, including water rights, laws, and regulations, as well as field investigation and testing procedures that may be applicable. The guidelines cover situations that may occur in many different types of projects and can be applied to basic or small projects by selecting the portions of these guidelines that are appropriate to the proposed project.
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 : 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 : 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 : Khahliso Clifford Leketa
Publisher :
ISBN 13 :
Total Pages : 139 pages
Book Rating : 4.:/5 (129 download)
Download or read book Holistic Approach to Groundwater Recharge Assessment in the Upper Crocodile River Basin, Johannesburg, South Africa /|cKhahliso Clifford Leketa written by Khahliso Clifford Leketa and published by . This book was released on 2019 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard W. Healy
Publisher : Cambridge University Press
ISBN 13 : 1139491393
Total Pages : pages
Book Rating : 4.1/5 (394 download)
Download or read book Estimating Groundwater Recharge written by Richard W. Healy and published by Cambridge University Press. This book was released on 2010-09-30 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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/
Author : Holger Treidel
Publisher : CRC Press
ISBN 13 : 0203120760
Total Pages : 414 pages
Book Rating : 4.2/5 (31 download)
Download or read book Climate Change Effects on Groundwater Resources written by Holger Treidel and published by CRC Press. This book was released on 2011-12-02 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is expected to modify the hydrological cycle and affect freshwater resources. Groundwater is a critical source of fresh drinking water for almost half of the worlds population and it also supplies irrigated agriculture. Groundwater is also important in sustaining streams, lakes, wetlands, and associated ecosystems. But despite this,
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 : Trevor Elliot
Publisher : MDPI
ISBN 13 : 390698091X
Total Pages : 1 pages
Book Rating : 4.9/5 (69 download)
Download or read book Environmental Tracers written by Trevor Elliot and published by MDPI. This book was released on 2018-10-08 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Environmental Tracers" that was published in Water
Author : Keith Beven
Publisher : CRC Press
ISBN 13 : 1482288575
Total Pages : 329 pages
Book Rating : 4.4/5 (822 download)
Download or read book Environmental Modelling written by Keith Beven and published by CRC Press. This book was released on 2018-09-03 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainty in the predictions of science when applied to the environment is an issue of great current relevance in relation to the impacts of climate change, protecting against natural and man-made disasters, pollutant transport and sustainable resource management. However, it is often ignored both by scientists and decision makers, or interpreted as a conflict or disagreement between scientists. This is not necessarily the case, the scientists might well agree, but their predictions would still be uncertain and knowledge of that uncertainty might be important in decision making. Environmental Modelling: An Uncertain Future? introduces students, scientists and decision makers to: the different concepts and techniques of uncertainty estimation in environmental prediction the philosophical background to different concepts of uncertainty the constraint of uncertainties by the collection of observations and data assimilation in real-time forecasting techniques for decision making under uncertainty. This book will be relevant to environmental modellers, practitioners and decision makers in hydrology, hydraulics, ecology, meteorology and oceanography, geomorphology, geochemistry, soil science, pollutant transport and climate change. A companion website for the book can be found at www.uncertain-future.org.uk
Author : UNESCO
Publisher : UNESCO Publishing
ISBN 13 : 9231004883
Total Pages : 366 pages
Book Rating : 4.2/5 (31 download)
Download or read book Managing aquifer recharge written by UNESCO and published by UNESCO Publishing. This book was released on 2021-11-25 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 :
Publisher :
ISBN 13 : 9781868451760
Total Pages : 449 pages
Book Rating : 4.4/5 (517 download)
Download or read book Manual on Quantitative Estimation of Groundwater Recharge and Aquifer Storativity written by and published by . This book was released on 1995 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Khahuliswe Edson Ramudzuli
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (135 download)
Download or read book Potential Impacts of Climate Change on Groundwater Recharge in South Africa Using Stable Isotopes of Water written by Khahuliswe Edson Ramudzuli and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. S. Sumioka
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.3/5 (243 download)
Download or read book Estimating Ground-water Recharge from Precipitation on Whidbey and Camano Islands, Island County, Washington, Water Years 1998 and 1999 written by S. S. Sumioka and published by . This book was released on 2003 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
