The IAHS community is more than 12,000 strong with members in over 150 countries contributing to the extensive programme of conferences and workshops, online discussions and IAHS publications. Membership of IAHS is free to all. Join us today!
IAHS is one of the eight constituent associations of IUGG
IAHS has proudly and successfully coordinated two Scientific Decades, which, amongst other things, set the research agenda worldwide through collaborative forces. The third Scientific Decade 2023–2032 of IAHS launches a topic for collaborative efforts in hydrological sciences: HELPING, created through a participatory community process and by applying strategic planning. The third IAHS Scientific Decade is dedicated to local solutions under the global water crisis. The name HELPING, stands for Hydrology Engaging Local People IN one Global world. The HELPING Theme and Working Groups are now available for you to view and join. If you're curious about the IAHS Scientific Decades and want to learn more, don't hesitate to get in touch with us. Our team is passionate about what we do, and we'd love to share the details with you. Just drop us an email at [email protected], and let's embark on this scientific journey together. Your quest for knowledge starts here!
The application deadline for the IAHS Academy 12-18 January 2026 in Ningbo, China, has been extended to Friday, 31 October 2025. IAHS Academy 2026 in Ningbo, China The IAHS Academy features five short courses in parallel fostering a critical mass of lecturers and students in the same week and venu....
Here’s a look back at the IAHS 2025 Scientific Assembly in Roorkee! Between 5 and 10 October 2025, the XIIth Scientific Assembly of the IAHS brought more than 600 hydrologists together in Roorkee, India – a university town nestled between the River Ganges and the foothills of the Hima....
We’re excited to announce that the IAHS YouTube channel will soon feature a series of short videos highlighting the Scientific Posters presented at the IAHS 2025 Scientific Assembly in Indian Institute of Technology, Roorkee! These videos will showcase the creativity, innovation, and global....
IAHS are happy to confirm the addition of a fifth course in the upcoming IAHS Academy to be held in Ningbo, China on 12-18 January 2026. Cindy Vail-Castro will lead a course entitled Assessing Coupled Human-Water Systems. Submit your SYSTA application for the 2026 IAHS Academy application before t....
Submit your SYSTA application for the 2026 IAHS Academy application before the Friday 10 October 2025 deadline! Applicants who have been notified of their acceptance for the 2026 IAHS Academy may apply to the IAHS Sivapalan Young Scientists Travel Awards (SYSTA), if they meet the requirements for....
In the October issue of the HSJ Digest, our bi-monthly synopsis of the latest news from Hydrological Sciences Journal, you will find the latest articles published in HSJ and follow links to key Featured and Open Access articles. Find out more about our Hot Topics and we also profile Communications O....
Nominations are now being accepted for the IAHS-UNESCO-WMO International Hydrology Prize. The International Hydrology Prize is awarded annually by IAHS, with UNESCO and WMO, to two people who have made an outstanding contribution to hydrological science. Nominations for the Prize shou....
Nominations are now being accepted for the IAHS Tison and Falkenmark Awards. The IAHS Tison Award is named in honour of Léon Tison, a former Secretary-General and Honorary President of the International Association of Hydrological Sciences. The Award was established in 1982 and aims to promo....
Please save the date for the IAHS Academy which will be held at the Eastern Institute of Technology in Ningbo, China from 12 - 18 January 2026. IAHS Academy application deadline is 15 October 2025. More information and the IAHS Academy application details can be found here. The training ....
The International Conference "Sediment and Pollutants Transport in River Catchments: Radionuclides and Fingerprinting Techniques Applications for Assessment, Monitoring, and Risk Prevention" will be held in Astana, the capital of Kazakhstan, at the Kazakhstan Branch of Lomonosov Moscow State Univers....
The XIIth IAHS Scientific Assembly will take place 5-10 October 2025 in Roorkee, India. Preparation is continuing at full speed. The Scientific Assembly will be jointly organised by the Indian Institute of Technology Roorkee, in coordination with the National Institute of Hydrology Roorkee, Irrigation Research Institute Roorkee and CBRI–Central Building Research Institute (CBRI) Roorkee, four leading institutions in the field of water resources in India. The Assembly will experiment with an innovative new format aiming to underline the importance of the discipline of Hydrology and to increase the visibility of the next generation of hydrologists. Read more.
Hydrological Sciences Journal (HSJ) is the official Journal of the IAHS and provides a forum for original papers and for the exchange of information and views on significant developments in hydrology worldwide. It is published by Taylor & Francis and available online and in print format. IAHS also publishes three book series: 1.Benchmark Papers in Hydrology series that collects together, by theme, the seminal scientific papers that provided the foundation for modern hydrology; 2.Red Books or Proceedings and Reports series and from volume 369 (2015) the new online open-access proceedings journal, Proceedings of the IAHS, PIAHS; 3.Blue Books or Special Publications series. Details of all books can be found here.
The IAHS Digital Water Globe (DWG) is an innovative tool specially designed for, and by, IAHS members. Here you can give visibility to (un)published results, research sites and find peers for collaborating around the world. The Digital Water Globe will exploit the potential of an innovative digital arena for IAHS-community building, data/knowledge exchange and science communication in action. We invite you to view and contribute to the Digital Water Globe!
Click an icon on the spinning globe to explore case studies, scientific profiles, IAHS publications and data across the globe.