Water dominates our lives: we live on a planet with much water and our lives depend on it in many ways. Despite the seeming abundance of water on the planet - with over 70% being salt water - human activity and prevailing climate conditions are placing more pressure on our supply of water than ever before, however. With this pressure comes a need to understand the physical principles of hydrology - the study of the occurrence, movement, and physical properties ofnon-oceanic water on and below the earth''s surface - an understanding that can then be applied to water management and related innovations. Introduction to Physical Hydrology provides a solid grounding in the principles of the subject. Exploring the principal rules that govern the flow of water on the land, it considers the four major types of water: atmospheric, ground, soil, and surface. It gives insights into the major hydrological processes, and shows how the principles of physical hydrology inform our understanding of cli