INTERNATIONAL ASSOCIATION OF HYDROLOGICAL SCIENCES SUPPORTING HYDROLOGY AND RELATED SCIENCES WORLDWIDE

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 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. 

The International Association of Hydrological Sciences (IAHS) support hydrology and related sciences as a non-profit, non-governmental charity registered in the UK with more than 12,000 members in over 150 countries. It runs under the global umbrella of the International Science Council (ISC) and The International Union of Geodesy and Geophysics (IUGG). IAHS embody more than 100 years of collaborative work, contributions to an extensive programme of conferences and workshops and IAHS publications.

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