The impact of climate change on water resources is a research area that is gaining prominence, and concerns the prediction of rainfall, temperature, streamflow/discharge, and other meteorological variables.This book is intended to help researchers and other relevant stakeholders working in this area. Its chapters deal with estimation of runoff, floods and droughts, intensity-duration frequency (IDF) curves and evapotranspiration (ET). In addition, some of the miscellaneous topics related to hydrology are also included.In Focus a book series that showcases the latest accomplishments in water research. Each book focuses on a specialist area with papers from top experts in the field. It aims to be a vehicle for in-depth understanding and inspire further conversations in the sector.