Content: Introduction General Remarks Engineering Hydrology for Arid and Semiarid Regions Hydrologic Cycle Hydrologic Systems Wadi Hydrology Modeling References Bibliography Meteorological Processes and Hydrology Introduction Solar and Earth Radiations Temperature Humidity Wind Climate Change References Precipitation Introduction Forms of Precipitation Measurement of Precipitation Precipitation Gauge Network Interpretation of Precipitation Data Average Precipitation over an Area Design Storms References Suggested Reading Precipitation Losses Introduction Evaporation Empirical Evaporation Equations Estimation of Evaporation by Analytical Methods Reservoir Evaporation and Methods for Its Reduction Evaporation and Transpiration Interception Surface Retention Loss Recommended Methods for Estimating Rainfall Losses Measurement of Infiltration Infiltration Indexes References Catchment Characteristics and Runoff Introduction Catchment Characteristics Estimation of Runoff References Stream Flow Measurement Introduction Measurement of Stages Flow-Measuring Structures References Stream-Flow Hydrographs Introduction Characteristics of the Hydrograph Hydrograph Separation The Unit Hydrograph Concept Derivations of Unit Hydrographs from Simple Hydrogaphs Derivation of Unit Hydrograph from Complex Storms Unit Hydrographs for Various Durations Synthetic Unit Hydrographs Hydrograph of Overland Flow References Bibliography Flood Routing Introduction Hydraulic Routing Techniques Hydrologic Routing Techniques Case Study: Flood Routing for the HighAswan Dam Reservoir References Groundwater Hydrology Introduction Distribution of Subsurface Water Groundwater Flow Theories Hydraulics of the Well and Its Design SLUG Tests Groundwater Recharge Application Groundwater Pollution References Sediment Yield from Watersheds Introduction Sediment-Yield Theories Reservoir Sedimentation References Hydraulic Structures Introduction Crossing Works Control and Storage Works References Bibliography Case Studies Case Study 1 Water Resources Management in Wadi Naghamish at the North Coastal Zone of Egypt Case Study 2 Urbanization Impacts on the Hydrological System of Catchments in Arid and Semiarid Regions Case Study 3 Runoff Simulation Using Different Precipitation Loss Methods Case Study 4 Design of Salboukh Flood Control System, in Riyadh City, Kingdom of Saudi Arabia Appendix A: Conversion Tables Appendix B: Glossary Appendix C: Statistics and Stochastic Analysis in Hydrology Appendix D: A Simplified Model for Hydrograph Development in Arid and Semiarid Regions Index