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Author: D. Clarke
Publisher: Newnes
ISBN: 008087021X
Category : Science
Languages : en
Pages : 281
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Book Description
This book provides the practising hydrogeologist with a selection of microcomputer programs which the author has found to be very useful as an aid in the investigation of groundwater wells and aquifers. The programs are written in BASIC and are designed to suit as wide a range of computer as possible.The book begins with a group of programs which solve several of the most common functions encountered in groundwater science. These are then developed into programs capable of calculating drawdown in a variety of discharge rate/aquifer/boundary configurations, either at one time, or a series of exponentially increasing times. The author shows how a computerised form of Newtons method (for solving difficult equations) may be applied to such tasks as evaluating storage coefficient if transmissivity is known. Lagrangian interpolation is used to produce accurate values from tabled functions, either within a program, or on demand.One of the major programs in the book may be used to enter discharge test data into a computer, edit it as required (e.g. change drawdown measurements from feet to metres, or water levels to drawdowns etc.), and finally to analyse the data. For example, three different methods are provided for evaluation of the well equation. Another program is provided for controlling a plotter to produce several popular types of discharge test graphs; and a new image well method is included for simulating boundaries consisting of straight line junctions between areas of two different transmissivities.This is a practical book, written to solve real-life problems. Accordingly, program operation is clearly described, but derivation of equations and functions have been omitted. (For those readers wishing to check on derivations, references are provided). Readers familiar with microcomputer programming may apply the programs given here to their own work, perhaps incorporating them as subroutines into large, more specialized programs. Those unfamiliar with programming can use the programs as they are listed. All programs are designed to be run with no more than an occasional reference to the written instructions being necessary.
Author: D. Clarke
Publisher: Newnes
ISBN: 008087021X
Category : Science
Languages : en
Pages : 281
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Book Description
This book provides the practising hydrogeologist with a selection of microcomputer programs which the author has found to be very useful as an aid in the investigation of groundwater wells and aquifers. The programs are written in BASIC and are designed to suit as wide a range of computer as possible.The book begins with a group of programs which solve several of the most common functions encountered in groundwater science. These are then developed into programs capable of calculating drawdown in a variety of discharge rate/aquifer/boundary configurations, either at one time, or a series of exponentially increasing times. The author shows how a computerised form of Newtons method (for solving difficult equations) may be applied to such tasks as evaluating storage coefficient if transmissivity is known. Lagrangian interpolation is used to produce accurate values from tabled functions, either within a program, or on demand.One of the major programs in the book may be used to enter discharge test data into a computer, edit it as required (e.g. change drawdown measurements from feet to metres, or water levels to drawdowns etc.), and finally to analyse the data. For example, three different methods are provided for evaluation of the well equation. Another program is provided for controlling a plotter to produce several popular types of discharge test graphs; and a new image well method is included for simulating boundaries consisting of straight line junctions between areas of two different transmissivities.This is a practical book, written to solve real-life problems. Accordingly, program operation is clearly described, but derivation of equations and functions have been omitted. (For those readers wishing to check on derivations, references are provided). Readers familiar with microcomputer programming may apply the programs given here to their own work, perhaps incorporating them as subroutines into large, more specialized programs. Those unfamiliar with programming can use the programs as they are listed. All programs are designed to be run with no more than an occasional reference to the written instructions being necessary.
Author: David K. Clarke
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 292
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Book Description
Author: David Clarke
Publisher:
ISBN: 9780444427939
Category : Groundwater
Languages : en
Pages :
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Book Description
Author: D. Clarke
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Mary P. Anderson
Publisher: Gulf Professional Publishing
ISBN: 0120594854
Category : Computers
Languages : en
Pages : 403
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Book Description
Creating numerical groundwater models of field problems requires careful attention to describing the problem domain, selecting boundary conditions, assigning model parameters, and calibrating the model. This unique text describes the science and art of applying numerical models of groundwater flow and advective transport of solutes. Explains how to formulate a conceptual model of a system and how to translate it into a numerical model Includes the application of modeling principles with special attention to the finite difference flow codes PLASM and MODFLOW, and the finite-element code AQUIFEM-1 Covers model calibration, verification, and validation Discusses pathline analysis for tracking contaminants with reference to newly developed particle tracking codes Makes extensive use of case studies and problems
Author: William C. Walton
Publisher: CRC Press
ISBN: 9781566701105
Category : Technology & Engineering
Languages : en
Pages : 212
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Book Description
This book explains how to design a groundwater model using the accompanying customized DesignMod software. DesignMod does not require a digitizer, but instead uses the mouse and rich graphical features of the Windows environment. It enables the user to draw and redraw easily and quickly cross sections and plan views with site base map information, contour, and zonation pattern overlays. Discretization, aggregation, averaging, and approximation guidelines for designing groundwater models with DesignMod are provided as a handy reference. DesignMod also can be used to manipulate and view model database array files. Many exercises with step-by-step program operation documentation are provided for beginning and intermediate modelers.
Author: William C. Walton
Publisher: CRC Press
ISBN: 9780873716796
Category : Technology & Engineering
Languages : en
Pages : 656
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Book Description
Groundwater Modeling Utilities is a handy reference guide designed to help groundwater industry professionals learn to use a variety of microcomputer software applications for groundwater modeling and numerical modeling in flow and contaminant migration studies. The book provides the following: (1) handy operation and logic reference supplements to selected groundwater model, pre-processor, post-processor, geostatistics, graphics, CAD, and word processing software supporting documentation; (2) selected model operation practice exercises with extensive step by step input/option prompt and response documentation; and (3) six convenient model database manipulation utility programs stored on two 5-1/4" diskettes included with this book. The disks can be used with all IBM and IBM-compatible computers. The utility programs allow you to convert values from one system of units to another; interpolate between control data points on a curve or surface; calculate heads and partial penetration effects in production wells; create, edit, and convert grid, triplet, listed, and unformatted model data files; and view tabular and category displays of model data files. Groundwater Modeling Utilities covers some of the most popular and thoroughly tested public domain finite-difference numerical microcomputer model software; commercial model software; public domain geostatistics software; and commercial graphics, CAD, and word processing software. Using actual groundwater modeling-specific examples, learn to work with software such as MODFLOW, MOD PATH, MOC, INTERTRANS, INTERSAT, GEOPACK, GRAPHER, SURFER, CADD 5.0, and WordPerfect 5.1. Groundwater Modeling Utilities is a book no groundwater industry professional can afford to be without.
Author: Ralph A. Wurbs
Publisher: DIANE Publishing
ISBN: 0788141708
Category :
Languages : en
Pages : 229
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Book Description
This report is designed to help water managers & planners who are not expert in modeling, & modeling experts in one area who are interested in surveying available models in another area. Covers: model development & distribution org's.; general-purpose software; demand forecasting & balancing supply with demand; water distribution system models; ground water models; watershed runoff models; stream, hydraulics models; river & reservoir water quality models; & reservoir/river system operation models. Inventory of selected models appendix. Tables.
Author: William C. Walton
Publisher: CRC Press
ISBN: 1000157733
Category : Technology & Engineering
Languages : en
Pages : 568
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Book Description
The purpose of this book is to bring together under one cover the principles of groundwater engineering. The concise format has produced a handy, comprehensive manual for professionals working in the groundwater industry. The author places emphasis on the application of theory and practical aspects of groundwater engineering. Well-cited references throughout the text guide you through the technology, scientific principles, and theoretical background of groundwater engineering. Exhaustive appendices contain quantitative data necessary for in-groundwater flow and contaminant migration equations. Principles of Groundwater Engineering is the state-of-the-art book that bridges the gap between groundwater theory and groundwater problem solving.
Author:
Publisher:
ISBN:
Category : Water
Languages : en
Pages : 882
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Book Description
