International Association of Hydrological Sciences Association Internationale des Sciences Hydrologique


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Due to COVID-19 please view the IAHS calendar for up to date event information

Dates: 01/08/2020 - 31/07/2021 00:00

ATTENTION Due to the particular circumstances of the ongoing COVID-19 outbreak, many events have been cancelled or postponed. We monitor and display these changes on the IAHS Calendar webpage.
31st Nordic Hydrological Conference (NHC2020)

Dates: 10/08/2020 - 13/08/2020
Location: Tallinn University, Tallinn, Estonia

The Nordic Association for Hydrology (NHF) and Tallinn University invite you to submit an abstract for the 31st Nordic Hydrological Conference (NHC2020). NHC2020 main topic will be “Hydrology and Water-related Ecosystems”.

*** postponed to summer 2022. The tentative new time for the conference is 15th August – 18th August 2022 ***

11th Annual Catchment Science Summer School

Dates: 30/08/2020 - 04/09/2020
Location: University of Birmingham, UK

*** Due to global travel restrictions related to COVID-19 the course will be online and live-streamed ***

The 11th Annual Catchment Science Summer School will run 30th Aug - 4th September 2020 at the University of Birmingham (UK). The course is designed for PhD students and Post Docs in catchment science. The course is taught by Jeff McDonnell, Chris Soulsby, Jan Seibert, Ilja van Meerveld, David Hannah, Stefan Krause and many others. It is co-sponsored by the Global Institute for Water Security at the University of Saskatchewan, the University of Aberdeen, University of Zurich and Humboldt University. Course details can be found at:

Dates: 31/08/2020 - 03/09/2020
Location: Qingdao, China

*** Rescheduled from May 2020 ***

Conference flyer

15th International Conference on Interactions between Sediments and Water

Dates: 06/09/2020 - 10/09/2020
Location: Portoroz, Slovenia

*** Postponed ***
Conference website: 

Delft Conference on Sociohydrology

Dates: 07/09/2020 - 09/09/2020
Location: Delft, Netherlands

Engaging Social Scientists & Water Professionals to Address the SDGs


Dates: 21/09/2020 - 24/09/2020
Location: Reykjavík, Iceland



*** Postponed until September 2021 and will become Cryosphere 2021 ***

Even though the spreading rate of the COVID-19 virus seems to be slowing in many countries the situation is still very uncertain. According to latest information from Icelandic authorities, restrictions on travel to and from Iceland might be upheld throughout 2020. The symposium has therefore been postponed until next year.

New dates:  September 27 - October 1, 2021 

for information on abstract submission and the scientific program.

for information on registration, accommodation and fieldtrips.

for information on paper submission to Annals of Glaciology Volume 62.

Info: Second Circular (PDF)

Euro-Mediterranean Network of Experimental and Representative Basins

Dates: 23/09/2020 - 25/09/2020
Location: Portoferraio, Elba Island, Tuscany, Italy

18th Biennial Conference ERB 2020

*** Postponed until 2021 ***

STAHY 2020

Dates: 24/09/2020 - 25/09/2020
Location: Valencia, Spain

*** Postponed to September 2021 *** 

STAHY2020, will focus on statistical methods for hydrological applications. This branch of hydrology has a long history, and continues to be an exciting and topical field of research. Will be renamed STAHY2021.


This event is eligible for IAHS SYSTA support (deadline for applications closed on January 20 2020).
European vision for hydrological observations and experimentation

Dates: 05/10/2020 - 08/10/2020
Location: Naples, Italy

*** Postponed to 20-23 September 2021 ***

Focusing on hydrologic observation, hypothesis driven experimentation, and the models behind the data - participants will initialize a new vision for European hydrologic observation and experimentation. The conference consists of plenary sessions with talks by invited speakers, early career talks and panel discussions with strong involvement of the audience, poster session combined with flash talks, open workshop spaces in form of break out groups concluded by a wrap-up meeting.


Dates: 26/10/2020 - 30/10/2020
Location: Bydgoszcz, Poland

River sediment quality and quantity: environmental, geochemical and ecological perspectives

Rescheduled from June 2020

Symposium flyer
21st WaterNet/WARFSA/GWPSA Symposium

Dates: 28/10/2020 - 30/10/2020
Location: Victoria Falls, Zimbabwe

21st WaterNet/WARFSA/GWPSA Symposium will be held in Victoria Falls, Zimbabwe at the Elephant Hills Resorty, from 28th - 30th October 2020. The theme for this year is Integrated Water Resources Management for Sustainable Development in Eastern and Southern Africa.

Water and nutrient fluxes in ecosystems under a changing climate - a tracer-based perspective

Dates: 04/11/2020 - 06/11/2020
Location: Heidelberg, Germany

The aim of this workshop is to bring together leading scientists from hydrology, soil science and plant physiology to communicate the latest research on water and nutrient fluxes in the soil-plant atmosphere continuum and to identify challenges and ways forward among colleagues from these three neighbouring disciplines. We will have four sessions covering the following topics:

    Transport processes and residence times in ecohydrological systems
    Novel tracer techniques for investigating processes in the subsurface
    Ecohydrological storages and fluxes mediated by plants
    Methodological developments and monitoring systems

3rd International Forum on Water Security and Sustainability

Dates: 16/11/2020 - 19/11/2020
Location: Nanjing, China

Irish National Hydrology Conference

Start date: 17/11/2020
Location: Hodson Bay Hotel, Athlone, Co. Roscommon

Abstract deadline 14th August 2020.

First Annoucement
Hydrology of the Major African Basins

Dates: 24/11/2020 - 28/11/2020
Location: Cotonou, Benin

Hydrology of the Major African basins, which will take place in Cotonou in Benin from 24 to 28 November 2020,
with a special session on hydrometeorological risks and related topics.


Summary of 3rd international conference on the hydrology of the great rivers of Africa in Algiers from 6 to 8 May 2018 (ALARIC 3).   (in both French and English)

This event is eligible for IAHS SYSTA support. Applications are currently closed.

AGU Fall meeting

Dates: 07/12/2020 - 11/12/2020
Location: San Francisco, USA

13th International Symposium on Biogeochemistry of Wetlands

Dates: 22/03/2021 - 25/03/2021
Location: Baton Rouge, Louisiana, USA

WRaH 2021

Dates: 11/04/2021 - 14/04/2021
Location: Nanjing, China

The 11th International Conference on Weather Radar and Hydrology (WRaH 2021) 

EGU General Assembly 2021

Dates: 25/04/2021 - 30/04/2021
Location: Vienna, Austria

Tenth International Symposium on Land Subsidence

Dates: 17/05/2021 - 21/05/2021
Location: Delft - Gouda, the Netherlands.


Registration and abstract submission opens September 2020  

LuWQ2021 – 5th International Conference on LAND USE and WATER QUALITY

Dates: 17/05/2021 - 20/05/2021
Location: Maastricht, the Netherlands

LuWQ2021 is an international and interdisciplinary conference on the cutting edge of science, management and policy to minimise effects of agriculture and land use changes on the quality of groundwater and surface waters.

Conference flyer

Abstract submission deadline is 12 October 2020


Dates: 31/05/2021 - 03/06/2021
Location: Edinburgh, Scotland

13th Annual InterPore Meeting (InterPore2021) 

Conference Flyer
IAHS Scientific Assembly 2021

Dates: 28/06/2021 - 02/07/2021
Location: Corum, Montpellier, France

Venue: Le Corum, Esplanade Charles De Gaulle, Montpellier, France

Save the date

More information will be available soon.

Dates: 11/07/2021 - 17/07/2021
Location: Villa Colombella, Perugia, Italy

Rescheduled from July 2020

Villa Colombella (Perugia, Italy) July 12th - 17th 2020 
4th International Conference on the Status and Future of the World’s Large Rivers

Dates: 02/08/2021 - 06/08/2021
Location: Moscow, Russia

The World’s Large Rivers Conference aims in providing a global forum for a wide-ranging discussion of key issues related to research on large rivers and to their effective and sustainable management, involving both scientists and decision makers. We encourage scientists and practitioners to present their research results and experiences in the fields of

Hydrology, Hydraulics & Hydroclimatic Impacts
Sediment Transport & River Morphology
River Pollution, Ecology & Restoration
Integrated River Management

as well as in a special session about
Russian / Arctic Rivers

Special focus throughout all sessions will be given this time to Climate Change and River Response. 


Abstract Submission will be open until January 31st 2021.

European vision for hydrological observations and experimentation

Dates: 20/09/2021 - 23/09/2021
Location: Naples, Italy

Rescheduled from October 2020

Focusing on hydrologic observation, hypothesis driven experimentation, and the models behind the data - participants will initialize a new vision for European hydrologic observation and experimentation. The conference consists of plenary sessions with talks by invited speakers, early career talks and panel discussions with strong involvement of the audience, poster session combined with flash talks, open workshop spaces in form of break out groups concluded by a wrap-up meeting. 

The geoscience excursion is scheduled for 22 September 2021.


AGU Fall Meeting

Dates: 13/12/2021 - 17/12/2021
Location: New Orleans, USA

IUGG General Assembly

Dates: 12/07/2023 - 19/07/2023
Location: Berlin

The 28th IUGG General Assembly will take place in Berlin