Hydrology is a significant discipline that aims to analyse the distribution and quality of water resources on earth. There has been an increasing emphasis on understanding the physico-chemical characteristics of global water reserves and hydrologic movement using computational modeling and measurement techniques. The chapters in this book discuss various topics like hydrometeorology, evaluation of hydrologic data from different parts of globe, climatology, water resource engineering, etc. It is an essential guide for both students and researchers seeking in-depth information of the field.