Primer on Agrohydrometeorology is a foundational book that provides an introduction to the field of agrohydrometeorology, which examines the relationship between meteorological, hydrological, and agricultural processes. This book is an endeavor to bridge the gap between theory and practice, providing a comprehensive overview of agrohydrometeorological principles and their practical applications.

The book contains rare but comprehensive and interdisciplinary contents contribute to promote understanding, enthusiasm and applications of scientific knowledge of agrohydrometeorology to address pressing challenges anticipated by planet earth. With strong advances in data analytics, remote sensing, and artificial intelligence, agrohydrometeorology offers innovative solutions to meet the twin challenges of feeding a growing global population and preserving the Earth’s natural resources. It aims to serve as a resource for students, researchers, policymakers, and practitioners who seek to address the multifaceted challenges posed by changing weather patterns, erratic hydrological cycles, and their impacts on agriculture.

The book is designed to serve as a primer, providing a concise and accessible introduction to the fundamental concepts and principles of agrohydrometeorology. The book will not only enrich the readers understanding of agrohydrometeorology but also encourage innovative thinking and action toward building sustainable and resilient agricultural systems.

BV Ramana Rao taught Agricultural Meteorology in the University of Agricultural Sciences, Bangalore during the years 1966 to 1979 and later joined the Indian Council of Agricultural Research and superannuated from service during April, 2000. He served as Head, Division of Climatology, Wind Power and Solar Energy Utilization at ICAR-Central Arid Zone Research Institute, Jodhpur (Rajasthan); founder Project Coordinator, All India Coordinated Research Project on Agrometeorology at ICAR-Central Research Institute for Dryland Agriculture, Hyderabad (Telangana) during December 1984 to March 1994. His major contributions in the field of Agrometeorology include Agroclimatic Characterization, Delineation of Efficient Cropping Zones, Crop Weather Modeling, Classification and Management of Agricultural Droughts, Operational Agrometeorology, etc. He published about 150 research papers in peer reviewed journals with 50 of his papers appearing in high impact International Journals. He authored 5 books and monographs and a number of scientific and technical bulletins. He served as Editor in Chief, Journal of Agrometeorology during the years 2009 to 2023.

He is the recipient of British Council Fellowship during the year 1986 -87 for advanced training at University of Reading, United Kingdom. He was conferred as Honorary Fellow, Association of Agrometeorologists during the year 2011 for his valuable contribution to the growth and development of Agricultural Meteorology in India.

Surender Singh has about thirty five years of experience with PhD in the field of Agrometeorology. Worked in Agrometeorology encompassing teaching, research, extension and administration at various capacities viz., Principal Scientist, Professor & Head, Senior Scientist, Assistant Scientist, Advisor (Recruitments) and Associate Director (Students’ Counseling and Placement) at CCS Haryana Agricultural University, Hisar, India. Recipient of Two Gold Medals for Best Research Work during PhD Program and for Best PhD Dissertation (2001-02) awarded by then President of India Dr APJ Abdul Kalam. Offered Vice Chancellors’ Scholarship for Higher Studies twice (1991 & 1993) under Commonwealth Fellowship Program. Post Doctoral Fellow at Abdus Salam International Centre for Theoretical Physics, Trieste, Italy; IAC - Instituto Agronômico, Campinas, Brazil and BOKU (Met) - Institute of Meteorology and Climatology, Vienna, Austria.

He is life member of Association of Agrometeorologists, Indian Meteorological Society, Indian Society of Remote Sensing, International Society for Agrometeorology, Society for Sustainable Agric & Resource Management, Environment Science Published for Everybody Round the Earth (ESPERE), European Drought Centre, South Asian Forum on Agriculture Meteorology (SAFOAM) and The Geographical Society of India. Organized quite a few trainings/symposia in Agrometeorology and associated domains at National level. Published more than 250 research papers, popular articles, manuals/teaching aids and research bulletins/book chapters etc. Performed responsibilities as Managing Editor - Journal of Agrometeorology, Research Collaborator, Monsoon Asia Agro-Environmental Research Consortium (MARCO), Japan, Member, Expert Team - CAgM-WMO, Geneva, Switzerland (2018-20). Core Committee Member on Agriculture – Drought at WMO, Geneva, Switzerland (2021-24 & 2024-27). External Expert for evaluation of research projects submitted at COST-Association, European Union, Brussels, Belgium. Many students (UG, PG and PhD) were trained under him spread across the country and settled in various positions in the field of Agrometeorology. Widely travelled researcher/expert across the globe on many academic pursuits.

V Uma Maheswara Rao has forty years of experience with PhD in the broader field of Agrometeorology. Worked in Agrometeorology encompassing teaching, research, extension and administration at various capacities viz., Project Coordinator, Principal Scientist, Professor & Head, Agrometeorologist, and Assistant Scientist at CCS Haryana Agricultural University and Indian Council of Agriculture Research in India. 

He is life member of Indian Meteorological Society, The Arid Zone Research Association of India, Indian Society of Remote Sensing, Association of Agrometeorologists, International Society for Agrometeorology, and The Indian Society of Dryland Agriculture. Organized several trainings/workshops in Agrometeorology at the International and National level. Published 344 Research papers, popular articles, manuals/teaching aids and research bulletins/book chapters. Member of the CCI-ET-IIC, WMO, Geneva (2014-2017). Member of XI Plan High Powered Review Committee of Ministry of Earth Sciences, Government of India (2012). The prestigious Chaudhary Devil Lal Award, ICAR’s Best AICRP on Agrometeorology was received under his dynamic leadership as Project Coordinator in 2014. Many students (UG, PG and PhD) were trained under him spread across the country and settled in various positions in the field of Agrometeorology. He visited numerous countries in official capacity.

1. Introduction
2. Hydrological Cycle
3. Precipitation
4. Soil Water
5. Soil Water Balance
6. Evapotranspiration
7. Water Production Functions
8. Physiological Response of Plants to Moisture Stress
9. Remote Sensing Applications
10. Precision Irrigation
11. Hydrometeorological Disasters
12. Watershed Development
13. Forecasting and Management
14. Climate Change, Water Resources and Agriculture: Growing Concerns on Food Securit