Water Resources Engineering is the result of teaching classes over the past 34 years at the University
of Texas at Austin and Arizona State University. So first and foremost, I would like to thank the many
students that I have taught over the years. Several of my past Ph.D. students have helped me in many
ways through their review of the material and help in development of the solutions manual. These
former students include Drs. Aihua Tang, Guihua Li, John Nicklow, Burcu Sakarya, Kaan Tuncok,
Carlos Carriaga, Bing Zhao, El Said Ahmed, and Messele Ejeta. I would like to give special thanks
to Professor Y.K. Tung of the Hong Kong University of Science and Technology. He has been a long
time friend and was my very first Ph.D. student at the University of Texas at Austin. Y. K. was very
gracious in providing me with some of the end of chapter problems for the hydrology chapters.
I would like to acknowledge Arizona State University, especially the time afforded me to pursue
this book.
I would like to thankWayne Anderson for originally having faith in me through his willingness to
first publish the book and now Jenny Welter who has worked to get this edition published.
During my academic career as a professor I have received help and encouragement from so many
people that it is not possible to name them all. These people represent a wide range of universities,
research institutions, government agencies, and professions. To all of you I express my deepest
thanks.
Water Resources Engineering has been a part of a personal journey that began years ago when I
was a young boy with a love of water. This love of water resources has continued throughout my life,
even in my spare time, being an avid snow skier, fly-fisherman and hiker. Books are companions
along the journey of learning and I hope that you will be able to use this book in your own exploration
of the field of water resources. Have a wonderful journey.