WELCOME

The Commision on Karst Hydrogeology, widely known as the Karst Commission is a part of The International Association of Hydrogeologists, a charitable membership organisation, which promotes sound development and management of groundwater.

Celebrating our 50th anniversary in 2020, we are one of the oldest and most active commissions of the IAH.

Today, our network of academics, practicing hydrogeologists and water resources professionals is focused on fostering international collaboration in karst groundwater management. Through promoting defensible science and professional practices, we aim to protect karst water resources for safe drinking water, agriculture and protection of ecosystems.

Please explore the resources on our website and reach out to become involved in our activities.

IAH’s Commision on Karst Hydrogeology is also a partner of the Speleogenesis Scientific Network and website, in cooperation with the UIS Commission on Speleogenesis: https://uis-speleo.org/index.php/speleogenesis/

Water Sampling of the Sarrazine overflow of the Lison karst aquifer, French Jura Mountains. Credit: Jean-Baptiste Charlier

Recent News

EuroKarst 2026

The European bi-annual conference on the hydrogeology of karst and carbonate reservoirs will be held in Neuchâtel between 31st of August to 4th of September 2026. The conference covers a wide range of topics related to karst. The website is available at: https://www.eurokarst.org

Schedule of Eurokarst 2026 is now available online https://www.eurokarst.org/schedule/ . It includes 5 keynotes, one public conference, about 100 oral presentations and 90 posters. The program includes also short courses the Sunday before the conference and three field excursions immediately after the conference.

Please note that the Annual meeting of the Commission on Karst Hydrogeology has been scheduled as part of the conference on Tuesday, 1 September at 6 p.m. CEST. You will also be able to attend via Zoom; we will send you the link in advance.

IAH 2026 congress

The Hungarian National Chapter of the International Association of Hydrogeologists is delighted to invite the karst community to the 53rd World Groundwater Congress, which will take place from 14th to 18th September 2026. We are waiting for you for a scientific discussion with a wide range of topics and for field trips on the 14th of September including several karst areas. Please visit the conference website for more information and updates: https://iah2026budapest.com/

First Celebration of the International Day of Caves and Karst (IDCK), proclaimed by UNESCO

SAVE THE DATE “IDCK”: Following the proclamation of the International Day of Caves and Karst (IDCK) by UNESCO, the first official celebration is planned to take place in Postojna, Slovenia, 10–13 September 2026. The central date of the celebration will be 13 September 2026, with a series of scientific and outreach events planned in the days leading up to it. Details regarding the conference programme, invited speakers, co-organisers and registration will be announced in due course. Further information is available on the websites: https://izrkp.zrc-sazu.si/en/novice/prvo-praznovanje-unesco-mednarodnega-dneva-jam-in-krasa