Preface to the Second Edition (v)
Preface to the First Edition (vii)
–
–

–

–

1 Introduction 1
1.1 World’s Water Resources 3
1.2 Water Resources of India 3
1.3 Hydrological Study of Tapti Basin (Central India) 5
1.4 Hydrology and Hydrologic Cycle 11
1.5 Forms of Precipitation 13
1.6 Scope of Hydrology 14
1.7 Hydrological Data 14
1.8 Hydrologic Equation 15
2 Precipitation 17
2.1 Types of Precipitation 17
2.2 Measurement of Precipitation 18
2.3 Radars 22
2.4 Rain-gauge Density 22
2.5 Estimates of Missing Data and Adjustment of Records 23
2.6 Mean Areal Depth of Precipitation (Pave) 26
2.7 Optimum Rain-gauge Network Design 31
2.8 Depth-Area-Duration (DAD) Curves 33
2.9 Graphical Representation of Rainfall 36
2.10 Analysis of Rainfall Data 38
2.11 Mean and Median 43
2.12 Moving Averages Curve 48
2.13 Design Storm and PMP 49
2.14 Snow Pack and Snow Melt 49
3 Water Losses 60
3.1 Water Losses 60
3.2 Evaporation
3.3 Evaporation Pans 62
3.4 Soil Evaporation 66
3.5 Unsaturated Flow 66
3.6 Transpiration 67
3.7 Evapotranspiration 67
3.8 Hydrometeorology 70
3.9 Infiltration 70
3.10 Infiltration Indices 81
3.11 Supra Rain Technique 83
3.12 Watershed Leakage 87
3.13 Water Balance 87
4 Runoff 96
4.1 Components of Stream Flow 96
4.2 Catchment Characteristics 97
4.3 Mean and Median Elevation 101
4.4 Classification of Streams 103
4.5 Isochrones 104
4.6 Factors Affecting Runoff 104
4.7 Estimation of Runoff 106
5 Hydrographs 117
5.1 Hydrograph Components 117
5.2 Separation of Streamflow Components 120
5.3 Hydrograph Separation 122
5.4 Unit Hydrograph 124
5.5 Unit Hydrograph from Complex Storms 130
5.6 S-Curve Method 138
5.7 Bernard’s Distribution Graph 142
5.8 Instantaneous Unit Hydrograph 149
5.9 Synthetic Unit Hydrographs 149
5.10 Transposing Unit Hydrographs 154
5.11 Application of Unit Hydrograph 157
6 Stream Gauging 171
6.1 Methods of Measuring Stream Flow 171
6.2 Current Meter Gaugings 174
6.3 Stage-Discharge-Rating Curve 178
6.4 Selection of Site for a Stream Gauging Station 183
7 Ground Water 192
7.1 Types of Aquifers and Formations 192
7.2 Confined and Unconfined Aquifers 193
7.3 Darcy’s Law

DOWNLOAD