e-book

Hydrologic analysis and design

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Hydrologic Analysis and Design is intended for a first course in hydrology. It introduces the
student to the physical processes of the hydrologic cycle, the computational fundamentals of
hydrologic analysis, and the elements of design hydrology. Although the sections of the book
that introduce engineering design methods are intended for the engineering student, the concepts
and methods will also be of interest to, and readily understood by, students in other disciplines
including geology, geography, forestry, and planning. The material is appropriate
for undergraduate and graduate students as well as for the practitioner interested in reviewing
the fundamentals of hydrology. While computers are widely used in the practice of hydrology,
knowledge of computer hardware, software, or programming languages is not necessary
to use this book; however, computer literacy will certainly facilitate problem-solving.

A number of factors influenced the structure of the book. Chapter 3 introduces watershed
characteristics, Chapter 4 addresses precipitation, Chapter 6 deals with topics in ground
water hydrology, Chapter 14 provides a brief overview of evaporation, and Chapter 15 discusses
erosion. Given the interdependence of these processes, other factors also determined
the book's structure. Because of the &verse ways that hydrology can be taught, flexibility
was a criterion used in structuring the book. The need for flexibility led to a book comprising
fifteen chapters. To the extent possible, I tried to make the chapters self-contained so that the
order in which the topics are presented is not constrained by the book's structure. Given the
orientation of the book towards design, I carefully examined the type of design problems that
were to be emphasized. Land development and urban hydrology are very important aspects
of hydrology, and therefore many of the topics that are used in such design work were placed
at the beginning of the book. Thus, topics such as flood frequency analysis (Chapter 5) and
hydrograph separation and synthesis (Chapter 9) were placed before snowmelt runoff estimation
(Chapter 12) and evaporation (Chapter 14). I hope that the criteria that influenced my
decision on how to structure the book has resulted in a favorable balance for both teaching
and learning hydrology.

Material for most topics in the fundamentals of hydrology can be divided into four
areas: physical processes, measurement and collection of data, model conceptualization and
data analysis, and design or solution synthesis. A basic knowledge of the physical processes
is necessary to properly analyze data or perform design work. Thus, I have tried to provide a
discussion of the physical processes associated with the components of the hydrologic cycle.
The discussion is limited to the dominant factors, especially those measurable characteristics
that are used in design. The measurement and collection of data is one area of hydrology
where many hydrologists are employed. This fact is not emphasized here because the book is
intended to be a student's first exposure to topics in hydrology. The title, Hydrologic Analysis
and Design, indicates that the emphasis has been placed on the last two of the four areas
identified, namely model conceptualization and data analysis, and design or solution synthesis.

In most chapters a brief section that discusses analysis and synthesis is included. Emphasis
has been placed on analysis and synthesis because I believe that knowledge of these subjects
is most important for the beginning student. Also, it is these topics that students usually
find most interesting; thus, by emphasizing these areas I hope that the book will motivate
students toward hydrologic practice. I believe that detailed discussions of the physical
processes and data collection should follow the introductory discussion of the methods of
analysis and design. This belief shaped the emphasis that is placed on the topics covered.

Educational programs in engineering and the sciences are often criticized as being too
theoretical. Practitioners often complain that recent graduates of engineering programs cannot
perform basic design computations. Hydrologic Analysis and Design has been structured
to overcome this problem. While the text is not intended to be a design manual, a number of
design methods are included. Although all of the details of these design methods are not
given, the material provided should demonstrate to the student that design computations are
not difficult and that the design methods have a basis in the fundamental concepts of the hydrologic
cycle.

Students of engineering hydrology and the hydrologic sciences often fail to recognize
the interconnection between topics discussed in an introductory course in hydrologic analysis
and design. Engineering design requires knowledge of watershed characteristics, rainfall,
frequency concepts, and the processes that control runoff. In an attempt to alleviate this problem,
I have developed a series of projects that are presented in a supplementary manual. I
have used these projects over the last few years with much success. While a few students
complain of the effort required, almost all of them agree that the project approach is both interesting
and educational. The "real world" flavor of the project approach to learning hydrology
definitely serves to inspire interest in hydrologic analysis and design. I highly recommend
the project approach.

In addition to the project approach to learning, I have included two other items that are
different from most books on hydrologic analysis and design. Each chapter includes a series
of multiple-choice review questions. These are designed to encourage the student to under
stand that the qualitative concepts of hydrology are just as important as the quantitative design
methods. If these review questions are assigned at the end of the discussion of a chapter,
they can also serve to tie together the different concepts discussed in the chapter. I have included
material on ethical issues in hydrology (the last few sections of Chapter I). The purpose
of the material is to introduce the student to another side of hydrologic practice, namely
the societal or value element that accompanies every hydrologic analysis and design. While
the book is devoted to the quantitative aspects of hydrology, the practitioner should always
give consideration to the societal effects of a project. Those involved in the practice of hydrologic
analysis and design do not work in a social vacuum: The presented material will
make this point to the student. Students always enjoy the lecture that is associated with
Chapter 1, and some former students have told me that it was the most important lecture. Additionally,
each chapter includes a discussion question that poses a situation that requires
knowledge of values and value decision making.

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Ketersediaan

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Informasi Detail

Judul Seri

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No. Panggil

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Penerbit

New Jersey : Pearson Education, Inc.., 1998

Deskripsi Fisik

TC145.M384; 88-22397 627-4~ 19 CIP

Bahasa

English

ISBN/ISSN

0- 13- 134958-9

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

HIDROLOGI

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

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