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: 01/08/2021 - 31/12/2021 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.
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.


LuWQ2021 - 5th International Conference on LAND USE and WATER QUALITY -- Postponed till 12-15 September 2022 & renamed LuWQ2022

Dates: 27/09/2021 - 30/09/2021
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.

 ** The LuWQ2021 conference is postponed to 12-15 September 2022 and therefore renamed to LuWQ2022. **



2nd International Conference on Natural Hazards and Risks in a changing world 2021

Dates: 06/10/2021 - 07/10/2021
Location: Potsdam, Germany

The hazards include hydrological events (floods and droughts) including risk estimation

For more information please contact Dr. Theresia Petrow  (


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

Dates: 11/10/2021 - 12/10/2021
Location: online

Free of charge

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

For abstract submission please follow the link: 
Abstract submission deadline: 03 September 2021
Registration deadline: 24 September 2021

IAHR/WMO/IAHS International streamgauging course

Dates: 13/11/2021 - 15/11/2021 00:00
Location: Cotonou, Benin

The 5th IAHR/WMO/IAHS training course on streamgauging will be held from 13-15 November 2021 in Cotonou, Benin, as part of the FRIEND-Water/IAHS conference on the hydrology of large rivers in Africa, with separate registration. The three-day course consists of two days of lectures covering the basics of hydrometry and the state of the art of river gauging, and one day dedicated to field exercises. The course is aimed at students, academics and professional hydrologists who wish to gain a clear understanding of hydrometry principles and techniques. The lectures will be given by internationally renowned experts. The language of the course is French.

Information and registration: 


4th International Conference of the Great Rivers of Africa

Dates: 16/11/2021 - 18/11/2021
Location: Cotonou, Benin

Hydrology of the Major African basins, which will take place in Cotonou in Benin from 16 to 18 November 2021, 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 closed.

National Hydrology Conference

Start date: 16/11/2021
Location: Hodson Bay Hotel, Athlone, Co. Roscommon


Abstract deadline extended to Friday, Aug. 27th 2021.


Dates: 22/11/2021 - 25/11/2021
Location: online

14th Symposium on Meteorological Education and Training of the World Meteorological Organisation (SYMET-14)


AGU Fall Meeting

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

3rd International Conference on Snow Hydrology

Dates: 01/02/2022 - 04/02/2022
Location: Saint-Martin d'Hères near Grenoble, France

SnowHydro 2022 is jointly organised by ICSIH and provides an exceptional opportunity to discuss recent advances in all aspects of snow hydrology in a dedicated conference setting, including snow cover processes, distribution dynamics, model development, data assimilation, operational snowmelt forecasting, remote sensing of snow, climate change effects on snow water resources, snow vegetation interactions, and ecohydrology.


IAHS 2022 Scientific Assembly

Dates: 29/05/2022 - 03/06/2022
Location: Le Corum, Montpellier, France

IAHS 2022 Scientific Assembly in Montpellier, France

This important biennial event will provide an opportunity to communicate, exchange and project on all major topics in the hydrological sciences within the framework of sessions organized by all IAHS Commissions and Working Groups with partners.

IAHS 2022 will have three major focuses:

·       Panta Rhei decade (2013-2022) on change in hydrology and society

·       UPH initiative, "Unsolved Problems in Hydrology"

·       the 100th anniversary year of IAHS

This event will be accompanied throughout this week by many other "water-related" events for scientists, the general public and schoolchildren. 

View the Scientific Programme.



LuWQ2022 - 5th International Conference on LAND USE and WATER QUALITY (Agriculture and the Environment)

Dates: 12/09/2022 - 15/09/2022
Location: Maastricht, the Netherlands

LuWQ2022 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.

LuWQ2022 is the follow-up to the successful LuWQ conferences: LuWQ2019 held in Aarhus, Denmark in June 2019; LuWQ2017 held in The Hague, the Netherlands, in June 2017; LuWQ2015 held in Vienna, Austria, in September 2015; and the LuWQ2013 conference held in The Hague, the Netherlands, in June 2013.

Conference flyer


Abstract submission deadline is Monday 7 February 2022

IUGG General Assembly

Dates: 11/07/2023 - 20/07/2023
Location: Berlin, Germany

The 28th IUGG General Assembly will take place in Berlin, Germany.

More information available from