The book presents researches and studies performed by experts across the globe in the field of hydrological sciences. Hydrological science is the study of the movement and distribution of water sources. With an increase in the world's demand for energy sources, there is a growing risk of depletion of our water resources. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of hydrology in recent times. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. It includes contributions of experts and scientists, which will provide innovative insights into this field.