User's Guide to SEAWAT

User's Guide to SEAWAT PDF Author: Weixing Guo
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages : 92

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Book Description

User's Guide to SEAWAT

User's Guide to SEAWAT PDF Author: Weixing Guo
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages : 92

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Book Description


A Computer Program for Simulation of Three-Dimensional Variable-Density Ground-Water Flow, U.S. Geological Survey, Techniques of Water-Resources Investigations Book 6, Chapter A 7, 2002

A Computer Program for Simulation of Three-Dimensional Variable-Density Ground-Water Flow, U.S. Geological Survey, Techniques of Water-Resources Investigations Book 6, Chapter A 7, 2002 PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 90

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Techniques of Water-resources Investigations of the United States Geological Survey

Techniques of Water-resources Investigations of the United States Geological Survey PDF Author:
Publisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 98

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Seawater Intrusion in Coastal Aquifers

Seawater Intrusion in Coastal Aquifers PDF Author:
Publisher: Food & Agriculture Org.
ISBN: 9789251039861
Category : Nature
Languages : en
Pages : 168

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Southwest Harbor Cleanup and Redevelopment Project

Southwest Harbor Cleanup and Redevelopment Project PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 820

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Groundwater Assessment and Modelling

Groundwater Assessment and Modelling PDF Author: C. P. Kumar
Publisher: C. P. Kumar
ISBN:
Category : Science
Languages : en
Pages : 331

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Book Description
Groundwater development has shown phenomenal progress in our country during past few decades. There has been a vast improvement in the perception, outlook and significance of groundwater resource. Groundwater is a dynamic system. It is dynamic in the sense that the state of any hydrological system is changing with time, and in the sense that we are continually developing new scientific techniques to evaluate these systems. The total annual replenishable groundwater resource of India is around 431 BCM. Inspite of the national scenario on the availability of groundwater being favourable, there are many areas in the country facing scarcity of water. This is because of the unplanned groundwater development resulting in fall of water levels, failure of wells, and salinity ingress in coastal areas. The development and over-exploitation of groundwater resources in certain parts of the country have raised the concern and need for judicious and scientific resource management and conservation. A complexity of factors - hydrogeological, hydrological and climatological, control the groundwater occurrence and movement. The precise assessment of recharge and discharge is rather difficult, as no techniques are currently available for their direct measurements. Hence, the methods employed for groundwater resource estimation are all indirect. Groundwater being a dynamic and replenishable resource is generally estimated based on the component of annual recharge, which could be subjected to development by means of suitable groundwater structures. Mathematical models are tools, which are frequently used in studying groundwater systems. In general, mathematical models are used to simulate (or to predict) the groundwater flow. Predictive simulations must be viewed as estimates, dependent upon the quality and uncertainty of the input data. Model conceptualization is the process in which data describing field conditions are assembled in a systematic way to describe groundwater flow processes at a site. The model conceptualization aids in determining the modelling approach and which model software to use. Taking the base from my lecture notes delivered in various training courses during last 26 years and further editing and additions, I have developed this book titled “Groundwater Assessment and Modelling”. The book is intended to provide a comprehensive treatise related to assessment and modelling of groundwater. It includes chapters on assessment of groundwater potential, groundwater data requirement and analysis, basic concepts and guidelines for groundwater modelling, groundwater modelling software, modelling of unsaturated flow, modelling of sea water intrusion, and impact of climate change on groundwater resources. I hope this book will be quite useful for undergraduate and postgraduate students (water resources engineering), field engineers and researchers working in the area of assessment, development and management of groundwater resources.

Calibration and Reliability in Groundwater Modelling

Calibration and Reliability in Groundwater Modelling PDF Author: Karel Kovar
Publisher: IAHS Press
ISBN: 9780947571948
Category : Groundwater
Languages : en
Pages : 622

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Book Description


Seawater Intrusion in Coastal Aquifers

Seawater Intrusion in Coastal Aquifers PDF Author: Jacob Bear
Publisher: Springer Science & Business Media
ISBN: 9401729697
Category : Science
Languages : en
Pages : 652

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Book Description
Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.

Model Validation

Model Validation PDF Author: Malcolm G. Anderson
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 522

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Book Description
Validation is a central issue to future model design in environmental science. This book is the first to provide a critical appraisal of today's validation needs, capabilities, and required changes in philosophy. It takes examples from four different scales: hillslope and river channel, catchment, regional, and global. This timely book offers unique, multifaceted coverage of model validation in hydrological science today. Topics covered include calibration procedures, data assimilation, scaling, critical future need in validation, and evidence of field data. * State-of-the-art research book on an important new topic * End-of-section discussion chapters written by leading international researchers

Techniques of Water-resources Investigations of the United States Geological Survey: chap. A1. A modular three dimensional finite-difference ground-water flow model

Techniques of Water-resources Investigations of the United States Geological Survey: chap. A1. A modular three dimensional finite-difference ground-water flow model PDF Author: Geological Survey (U.S.)
Publisher:
ISBN:
Category : Water resources development
Languages : en
Pages : 98

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Book Description