Hydrology is the science concerned with the study of the movement and distrbution of water on the Earth. The study of water resources, the water cycle, watershed sustainability and analysis of the quality of water are also within this domain. This field subdivides into the domains of groundwater, surface water and marine hydrology. These domains branch into a number of significant sub-disciplines, such as chemical hydrology, hydrogeology, isotope hydrology, ecohydrology, etc. The applications of hydrological studies are in the calculation of rainfall and surface runoff, determination of the water balance and agricultural water balance of a region, prediction and mitigation of floods and landslides, provision of potable water, etc. This book is a compilation of chapters that discuss the most vital concepts in the field of environmental hydrology. Some of the diverse topics covered herein address the varied branches that fall under this category. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.