Hydrology,Flood Control & Ground Water Engineering

PREFACE TO THE 27th REVISED EDITION The first edition of this book was published in Oct. 1973, when there did not exist any Indian book on the subject of Hydrology, and the subject itself used to get a very low weightage in the civil engineering curriculum. The times have, however, largely changed since then, and almost every engineering college has now prescribed a separate paper on the subject, thereby giving it, its due weightage, which was being advocated by this author, from the very beginning. Although the author was a fresh graduate with hardly 4 years of professional experience in 1973 when he wrote this book, yet the book was accepted and appreciated by the learned professors of the various engineering colleges as well as by the student community, with enthusiastic response. The content matter of the book and its size have however, undergone vast changes during the intervening years. The author has the greatest satisfaction to find the book still going high in the market, even after such a long period of more than 45 years, which itself establishes the dynamic response of the author to keep the text in tune with the changing times. The book fully covers the syllabus of the subject at the under graduate BE level examinations of various engineering colleges as well as of the Masters courses in Water Resources, Flood Control and Ground Water Engineering. Keeping in view the specific needs of the students of average callibre, very simple and lucid language has been adopted in the book, which has made this book extremely popular. Advance topics like ‘‘Flood Forecasting’’ and ‘‘Computer Applications in Water Resources Systems’’, have been included in this book. Although these topics do not generally find inclusion in the syllabuses of the under graduate BE level courses of most of the engineering colleges, yet the same are required while preparing for the Civil Services (IAS) Competition, as well as for the GATE Exams for seeking admissions to the M.Tech courses.