IAHS News
Rabat declaration on the future of African rivers - July 2026
During the 5th International Conference on African Rivers held in Rabat, Morocco, one of the outcomes was the Rabat Declaration on the Future of African Rivers, which highlights ten recommendations.
Africa is warming at more than +0.3 °C per decade — faster than the global average, and up to 1.5 times the global mean in some zones. This accelerated warming is reshaping the hydrology of all African sub-regions in divergent yet equally alarming ways. In North Africa, the surface waters are already largely used for multipurpose uses and sediment trapping into dams accelerate the coastal retreat and vulnerability to sea level rise. The surface waters of the Nile basin face rising demand. Across West Africa, the Niger, Volta and Senegal basins alternate between deepening drying trends and high floods. Central Africa's Congo and Ogooue Rivers face combined climate and land-use pressures modifying their flows. East Africa oscillates between six consecutive failed rainy seasons in the Horn and devastating floods across the Nile and Rift Valley basins. Southern Africa's Zambezi, Limpopo, Okavango and Orange all recorded severely below-normal discharge in 2024. Rainfall and river discharge across the continent are swinging by −50% to +50% relative to long-term historical means, with cascading impacts on food security, energy, health and forced displacement. In 2024 — the hottest year in 175 years of records — only one-third of river basins globally experienced normal discharge, for the sixth consecutive year. The scientists of the 5th International Conference on Africa’s Rivers gathered in Rabat, under the auspices of the International Association of Hydrological Sciences, have prepared the 10 recommendations of this Declaration to call for evidence-based, inclusive and collective actions to protect, restore and better share river surface water in Africa.
Rabat Declaration on the Future of African Rivers 10 Recommendations
1. Safeguard freshwater resources
African rivers are under severe stress from climate-driven drying, and urgent action is needed to manage watersheds sustainably before irreversible tipping points are reached.
2. Govern river water demand
With Africa's population set to double by 2050, surface water must be managed more efficiently and equitably, with women, children, and smallholder farmers at the centre of policy.
3. Protect river water quality
Pollution from mining, agriculture, and urban growth is contaminating rivers and aquifers across the continent, requiring enforceable standards and better monitoring.
4. Stop land degradation
Deforestation and soil erosion are worsening Africa's water crisis by increasing runoff and flooding rivers with sediment, increasing soil loss and landslide risk, making landscape restoration a water security priority.
5. Reduce the environmental consequences of large dams
Major dams have significantly reduced the supply of sediments to deltas and coastlines, accelerating erosion and coastal retreat, and future dam projects should better account for these river-to-coast impacts.
6. Strengthen cooperation on shared rivers
Africa's 63 transboundary rivers surface water resources would benefit from strengthen cooperation between countries, to better manage shared water and biodiversity all along river courses, through coordinated reservoir operations, joint planning, and basin-wide decision-making frameworks.
7. Protect people from floods and droughts
In 2024 alone, floods killed over 2,500 people and displaced 4 million across Africa. The capacities of prediction of severe floods and droughts and prevention measures should be improved.
8. Build better water monitoring networks
Africa's river gauging systems are sparse, underfunded and unsustained, open-data observation combining satellites, AI, and field stations is needed.
9. Combine traditional knowledge with modern science
Effective water governance must bring together ancestral community wisdom, satellite technology, AI forecasting, and the equal participation of women, youth, and indigenous peoples.
10. Educate the next generation about water
Understanding how rivers, forests, wetlands, and coasts form one interconnected system should become a core part of school curricula across all of Africa.
Save The Date - 29th IUGG General Assembly, 16-20 July 2027 in Incheon, Republic of Korea
The 29th IUGG General Assembly will be held 16 to 22 July 2027 in Songdo ConvensiA, Incheon, Republic of Korea. This is a special opportunity for participants from around the world to come together and share their science and culture. Join us for a host of scientific activities, including special public lectures, keynote Union lectures and a wide variety of themed sessions. The IAHS-led programme will be over the first half of the Assembly ie 16-20 July 2027.
New Forum Program
This event will use a new forum program, as was successfully used at IAHS 2025 Scientific Assembly in Roorkee, with no call for session and no parallel sessions, aimed at enhancing the visibility and engagement of all participants. This format underlines the importance of hydrology as a unified discipline while providing a platform for early career scientists and established researchers alike.
SYSTA
SYSTA (Sivapalan Young Scientist Travel Award) funding is available to eligible early career scientists who meet ALL of the SYSTA award criteria. Applicants should email the completed SYSTA application form and a copy of their published paper and conference abstract to IAHS Secretariat ([email protected]). The closing date for SYSTA applications for upcoming IUGG 2027 General Assembly is February 2027 and exact dates will be released shortly. Before submitting the application form, applicants should read the “Guidance on completing the SYSTA application form” document. Applications and published paper must be in English.
Important Dates
October 2026: Early Registration Opens; Abstract Submission Opens; SYSTA Application Opens
February 2027: Abstract Submission Closes, SYSTA Application Closes
March 2027: Notification of Abstract Acceptance
April 2027: Early Registration Closes; Regular Registration Opens
May 2027: IUGG 2027 Official Program Opens
July 2027: Regular Registration Closes
16-22 July 2027: IUGG 2027 Incheon
The June issue of the HSJ Digest is now available!
This edition features a curated selection of HSJ articles, along with complete listings of recent issues. We proudly celebrate the recipient of our annual Associate Editor Award, Svenja Fischer, alongside our multiple Reviewer Award winners.
Additionally, we provide information on manuscript submissions for the Special Issue on Progress in coupled land–atmosphere systems for hydro-meteorological processes. Full details, including the Call for Papers for Compound, multihazard, and cascading impacts on water security, can be found in this issue.
Be sure to explore our collections of recent Special Issue papers, including the new MOXXI Collection, HSJ Reviews, and Hot Topics.
IAHS Academy 2027 Open Call for Topics
The 2027 IAHS Academy, in Ningbo from 11 to 17 January 2027 and hosted by Eastern Institute of Technology, is jointly organised by the IAHS, UNESCO Intergovernmental Hydrological Programme (IHP), UNESCO World Water Assessment Programme (WWAP), World Meteorological Organization (WMO), the Eastern Institute of Technology, Ningbo (EIT) and Tsinghua University, Beijing.

Following the success of the first edition in Ningbo (January 2026), the IAHS Academy 2027 is expanding and launching an open international call to define up to five advanced short courses in hydrological sciences.
We invite leading scientists, lecturers and research teams worldwide, including those outside IAHS, to submit proposals for a week-long course combining:
- Advanced theoretical lectures
- Hands-on training (Python, R, MATLAB, etc.)
- Real-world case studies.
The IAHS Academy aims to:
- Strengthen global capacity in hydrology
- Support early-career scientists
- Promote open science and international collaboration
- Bridge research, data, and operational applications.
We encourage keynote lecturers from geomorphology, geology, environmental sciences, earth sciences, earth observation, artificial intelligence, statistics and any other discipline/topic addressing water challenges. The deadline for topic proposals in 8 May 2026. A template to submit your proposal to become a keynote lecturer is available here, or contact the IAHS Academy Chair by email ([email protected]). We are looking for topics such as:
- Strong scientific relevance
- Active international communities
- Available training material and tools
- Capacity to attract participants globally.
Lecturers will play a key role in shaping the next generation of hydrological scientists and contributing to a growing global network.
IAHS Academy Permanent Steering Committee:
Fernando Nardi (IAHS Academy Chair, University of Rome Tor Vergata, Italy)
Abou Amani (UNESCO IHP)
Antonio Annis (IAHS, University of Padua, Italy)
Dominique Bérod Berod (World Meteorological Organization)
Fabio Castelli (UNESCO Chair, University of Florence)
Christophe CUDENNEC (IAHS Vice-President)
Moctar DEMBELE (IAHS Early Career Scientists Committee Chair)
Maria C. Donoso (UNESCO Chair, Florida International University)
Miguel Doria (UNESCO WWAP)
Salvatore Grimaldi (IAHS President)
Fuqiang Tian (IAHS Vice-President)
Chunmiao Zheng (Eastern Institute of Technology, Ningbo, China)
Podcast Launch: History of Hydrology Interviews
“The number one piece of advice I would give anybody is to pick a problem and go after that problem. Ideally, you should pick a problem that requires a lifetime to solve.” Prof. M. Sivapalan, episode 1.
“A lot of greybeards telling us what we should be doing is absolutely the wrong way to do science. Science is anarchic, it’s bottom-up.” Prof. Mike Kirkby, episode 2.
“I wrote to the journal editor asking what the record of rejected papers in a row was, because now that I had five in a row I really wanted to go for the record." Prof. Keith Beven, episode 3.
“Curiosity and fun are the main drivers of any scientific endeavor.” Prof. Georgia Destouni, episode 4.
These are some of the inspiring, insightful and often funny quotes that you can now hear in the newly-launched History of Hydrology Interviews podcast. In each of the 19 episodes, a member of the IAHS History of Hydrology Working Group interviews a senior hydrologist that has put their mark on the history of our field. Here is everything you need to know about this interview series, why there is now a podcast, and how you can contribute by recording an episode yourself!

What are the History of Hydrology Interviews?
Operating within the International Association of Hydrological Sciences (IAHS), the History of Hydrology Working Group is a global community effort to document the development of hydrology as a scientific field. As part of this initiative, members of the Working Group have conducted interviews with hydrologists who have written this exact history. They explain what drove them to become hydrologists in the first place, discuss the challenges and achievements of their careers and share advice for young hydrologists. Since the series’ launch in 2019, 19 interviews have been recorded and posted on the History of Hydrology YouTube channel. They are generally between 45 minutes and an hour long. As an example, here is the latest addition: Interview with Professor Petra Döll.
Why is there now a podcast?
The goal of the podcast release is to make these interviews easier for the global hydrology community to access. Videos are not the easiest format to fit into a busy schedule while a podcast is easy to listen to during a commute or on a walk. In addition, we have cleaned up the audio quality where possible to improve speech clarity and reduce background noise. The interviews are now available on Spotify, Apple Podcast, or “wherever you get your podcasts”.
Can I propose and conduct an interview myself?
Yes! Interviews are open to contributions from the community. The main requirements are that the interview be conducted in English and that the interviewee has been involved in hydrology over several decades. We particularly encourage interviews with female hydrologists, hydrologists from the Global South, and other hydrologists currently underrepresented in our interview series. For guidance on conducting an interview, feel free to contact the interview coordinator, Professor Okke Batelaan ([email protected]).
SYSTA Deadline is Approaching!
SYSTA (Sivapalan Young Scientist Travel Award) funding is available for two exciting new events;
- The 10th International Symposium on Integrated Water Resources Management (IWRM) taking place from 9-13 September 2026 in Canberra, Australia
- The IAHS International Commission on Continental Erosion (ICCE) symposia taking place from 17-19 September 2026 in Como, Italy
SYSTA funding is available to eligible early career scientists who meet ALL of the SYSTA award criteria. Applicants should email the completed SYSTA application form and a copy of their published paper and conference abstract to IAHS Secretariat ([email protected]). Before submitting the application form, applicants should read the “Guidance on completing the SYSTA application form” document. Applications and published paper must be in English.

27th WaterNet/WARFSA/GWP-SA Call for abstracts
IAHS is pleased to be a partner in the upcoming 27th WaterNet/WARFSA/GWP-SA Symposium on harnessing artificial intelligence and big data to enhance climate resilience in integrated water resources management in Eastern & Southern Africa.

The symposium will be held in Arusha, United Republic of Tanzania, at Mount Meru Hotel, 28 – 30 October 2026. The symposium will be hosted by the Mbeya
University of Science and Technology in collaboration with other partners.
The Symposia have been held annually in the Eastern and Southern African regions for the past 26 years to promote interaction among policymakers, academics, practitioners from water and related sectors, and cooperating partners. Together, they identify regional issues, gaps and priorities that require further research and support. Great emphasis has been placed on integrating knowledge, particularly involving scholars from the natural and social sciences.
Deadline for submission of abstracts: 30 May 2026
Notification acceptance of abstracts: 30 June 2026
Deadline for early bird registration: 30 July 2026
This year's symposium sub-themes have been aligned to the SADC Water Research Agenda under the Regional Strategic Action Plan (RSAP) on Integrated Water Resources Development and Management Phase V, whose main objective is:
- Promoting evidence-based implementation of SADC water programmes and projects through multi- and inter-disciplinary research, and synthesis of existing and new information, which will lead to a realisation of SADC developmental goals.
Authors are invited to submit their abstracts for presentation at the symposium for oral, poster or special session presentations. More information is available here.
April Issue of the HSJ Digest
In this second issue of 2026, we introduce a recently appointed sixth Co-editor, Pedro Chaffe, and are delighted to welcome him on board: read all about Pedro’s background in our regular ‘Meet the Editor’ slot. We offer synopses of multiple Open Access articles in this issue, together with featured articles and other ‘hot topics’, and we announce the winner of the 2025 Frances Watkins Memorial Award. Find out too about our new collection of papers curated by the MOXXI Working Group. Read it all here.

Introducing the IAHS Fellow Award
The IAHS is pleased to announce the introduction of a new distinction: the IAHS Fellow Award. This prestigious recognition has been established to honour outstanding contributions to the hydrological sciences community and to celebrate excellence across the global IAHS network.

Award Overview
The IAHS Fellow Award will be presented every two years, recognising five distinguished scientists—one from each continent (North America, South America, Africa, Asia-Oceania, and Europe). This structure reflects IAHS’s commitment to global representation and inclusivity within the hydrological sciences.
Ceremony and Recognition
Awardees will be formally recognised during the IAHS Scientific Assembly and the IUGG General Assembly. Each Fellow will also be invited to deliver an oral contribution, either within a dedicated session or as part of the wider scientific programme.
Eligibility and Nominations
Candidates must be established scientists holding a permanent position, with a minimum of 10 years of research experience following the completion of their PhD. Nominees should also be current IAHS members. Nominations may be submitted by IAHS National Representatives, IAHS Officers, or IAHS members, ensuring a broad and inclusive nomination process. In addition, awardees are encouraged to contribute to the Hydrological Sciences Journal (HSJ). Ideally, recipients will have published at least one HSJ paper within the three years prior to the award and will be invited to submit a review or research paper highlighting their work within one year of the award ceremony.
Selection Process
Nominations should be received by the IAHS President and Secretary General (with a copy sent to [email protected]) no later than 31 December of the previous year. The selection will be carried out by a jury composed of the IAHS Management Team.
Commitment to Equity, Diversity and Inclusion (EDI)
IAHS is committed to achieving a balanced representation across gender and scientific disciplines in the selection of Fellows.
This new award represents an important step in recognising excellence and strengthening the global hydrological sciences community. Further details on the nomination process and timelines will be shared in due course.
The Digital Water Globe (DWG) is evolving!
The IAHS DWG is entering an exciting new phase of development. Since its launch, the DWG has provided an innovative way to explore hydrological research across the world, helping to connect scientific knowledge and showcase the global reach of water science. As digital tools and scientific collaboration continue to evolve, IAHS is now taking the opportunity to redevelop the platform to better support the needs of the international hydrological community.

From the end of March, the current DWG will be temporarily unavailable while this redevelopment takes place. The next stage of development will introduce a new generation of the platform designed to enhance how hydrological research is visualised, shared, and explored globally. The aim is to create a more powerful and accessible tool that strengthens connections between researchers, disciplines, and regions. While work continues behind the scenes, IAHS will keep members informed as the project progresses and will share further updates in the coming months.
We look forward to welcoming the community back to a renewed and enhanced DWG very soon.
