This book provides a comprehensive exploration of the temporal and spatial dynamics of water resources and their implications for natural hazards. There is an urgent need to understand the variability and distribution of water resources over different time scales and geographical areas, which is crucial for reducing the vulnerability of different regions. These fluctuations significantly affect ecosystems, agriculture, urban infrastructure, and overall water security. This book bridges the gap between hydrological science, climate variability, and risk assessment, providing a multidisciplinary perspective on the interactions between water systems and extreme events.

It covers key topics such as hydrological modeling, the impacts of climate change, the spatiotemporal variability of precipitation and river flow, and the role of remote sensing and geo-statistics in water resources management.

Designed for researchers, hydrologists, environmental scientists, and policymakers, this handbook serves as a valuable reference for understanding and mitigating the risks associated with water-related natural hazards while promoting sustainable water resources management strategies.

Saeid Eslamian received his PhD in Civil and Environmental Engineering from University of New South Wales, Australia in 1998. Saeid was a Visiting Professor at Princeton University and ETH Zurich in 2005 and 2008 respectively. He has contributed to more than 1K publications in journals, conferences, and books. Eslamian has been appointed as 2-Percent Top Researcher by Stanford University for total careers. Currently, he is a full professor of Hydrology and Water Resources and Director of Excellence Center in Risk Management and Natural Hazards, Isfahan University of Technology. His scientific interests are Floods, Droughts, Water Reuse, Climate Change Adaptation, Sustainability, and Resilience.

Yaser Sabzevari has a strong academic background in hydrology and extensive experience in watershed modeling. He has spent the past several years conducting field-based and data-driven research on the interplay between water resources and environmental hazards. His PhD work included the analysis of snowmelt dynamics, drought impacts, and flood modeling using tools such as Arc-SWAT and GIS-based approaches. He has published peer-reviewed articles in both national and international journals and has actively collaborated with regional water authorities and research institutions. These experiences have provided him with a comprehensive understanding of how spatial and temporal water variability affects the natural hazard risk, knowledge he aims to make accessible and actionable in this book.

Faezeh Eslamian holds a PhD degree in Bioresource Engineering from McGill University, Canada as well as a bachelors and masters degree in Civil and Environmental engineering. She has more than 15 years of experience in managing various multidisciplinary projects including soil and groundwater caraterisation and soil remediation, hydrogeology, water and wastewater treatment and numerical modeling. Dr. Eslamian is strong analytical thinker who proposes sustainable solutions and has developed innovative products and strategies to mitigate environmental problems. She has more than 40 publications including journal papers, book chapter as well as handbooks.