Computer Simulation Techniques In Hydrology

Fundamental principles of modeling and simulation; Isothermal evaporation of soil water under fluctuating evaporativity, including the role of hysteresis; Non-isothermal evaporation of soil water, including the effect of surface reflectivity; Water dynamics and storage in fallow soils as affected by soil texture and profile layering; Hydrology of a sloping field, including surface runoff and groundwater flow; Moisture extraction by root systems, and the concurrent movement of water and salt in the soil profiles.

Dynamic Simulation and Virtual Reality in Hydrology and Water Resources Management focuses on the understanding, use, and application of system dynamics simulation and virtual reality approaches for modeling the spatial and temporal behavior of natural and managed hydro-environmental systems. The book discusses concepts of systems thinking and system dynamics approach, and it furthers understanding of the dynamic behavior of natural and engineering systems using feedbacks and dynamic simulation. Numerous examples of models built using different system dynamics simulation modeling environments are provided. It also introduces concepts related to computer animation and virtual reality–based immersive modeling. Applications of systems dynamics, simulation with animation, and virtual reality approaches for modeling and management of hydro-environmental systems are illustrated through case studies. This text is ideal for water resources professionals, graduate students, hydrologic modelers, and engineers who are interested in systems thinking, dynamic simulation, and virtual reality modeling approaches. It will serve as a valuable reference for engineering professionals who model, manage, and operate hydrosystems. Engineering educators will find the book immensely useful to enhance the learning experiences of students. Dr. Ramesh S. V. Teegavarapu is a professor at Florida Atlantic University with expertise in modeling water resources and environmental systems, hydroinformatics, and climate change. Dr. Chandramouli V. Chandramouli is a professor at Purdue University Northwest. His expertise is in water resources and environmental modeling integrating artificial intelligence techniques.

Computer Simulation in Physical Geography Second Edition M.J. Kirkby, University of Leeds, UK, P.S. Naden, Institute of Hydrology, UK, T.P. Burt, University of Oxford, UK and D.P. Butcher, University of Huddersfield, UK Simulation modelling has grown in importance in geographical teaching and project work ever since microcomputers have become widely available. By developing a broad range of usable programs in an environmental context, this second edition of Computer Simulation in Physical Geography may be used both as a physical geography textbook and as a pathway to learning standard programming, since substantial sections of the book are devoted to the design, formulation and best use of programs. The book opens with an introduction to the subject, followed by a series of chapters each of which is devoted to a different type of model, including black box models, process models, mass and energy balance models, and stochastic models. The second half of the book contains methods for model or program formulation and various means of verifying and calibrating models against field data. The choice of an appropriate model for a given situation is considered, together with the building of rationally based computer simulations from geographical assumptions. Example programs are drawn from ecology, hydrology, meteorology and hillslope and fluvial geomorphology, and these give a flavour of current research trends. All programs are contained on a supplementary disk in Microsoft QuickBASIC, QBASIC (standard with DOS 5-0) or GWBASIC (standard with earlier DOS versions). The distinct advantages of this second edition over the first are the major changes that have been made in updating the programs to the more structured environment of QuickBASIC, which also enables the utilisation of the superior CGA, EGA and VGA graphics on current DOS systems.

This valuable new book, with 2 programs on diskettes, will help practitioners in solving groundwater flow and contamination problems by integrating simulation techniques. The reader is expected to have knowledge of hydrogeology, and have access to books on groundwater hydrogeology. Two microcomputer programs, in compiled FORTRAN 77 with source codes for simulating quasi-three-dimensional groundwater flow and contaminant migration, are presented in this book. The numerical and analytical techniques incorporated in these programs are described in detail. Data entry has been simplified so that the user can run the programs without worrying about FORTRAN input file structures and editors. The basic requirements are a monitor, dot-matrix printer, and an IBM-PC or compatible computer running DOS Version 2.1 or compatible. Programs require a full 640K RAM (minus that used by DOS) for their operation.