IUGG & IACS General Assemblies


Next IACS Scientific Assembly

IACS-IAMAS-IAPSO Scientific Assembly in Busan, South Korea, 20-25 July 2025

Travel grants will be available for attending the meeting. Details will be announced in late 2024.

Past IACS Scientific Assemblies

IUGG Assembly in Berlin, Germany, 11-20 July 2023

The 28th International Union of Geodesy and Geophysics (IUGG) General Assembly was held in Berlin, Germany. IACS sessions took place 12-16 July 2023. The scientific program included 15 IACS sessions on glaciers, ice sheets, sea ice, snow and permafrost, roughly 20 symposia joint with other IUGG associations and many other sessions and events. Travel grants, in total (in total EUR 35,940) supported 30 early career scientists and attendees from less-affluent countries. See more details here. The next IUGG Assembly will be held in Incheon, Korea in 2027.


IACS-IAMAS-IAPSO Scientific Assembly in Busan, South Korea, 18-23 July 2021 (cancelled due to COVID-19 pandemic)

[6 July 2020] It is with regret that IACS, along with the International Association of Meteorology and Atmospheric Sciences (IAMAS) and the International Association for the Physical Sciences of the Oceans (IAPSO), announce the cancellation of the BACO-21 joint assembly in Busan, Republic of Korea. We thank the local organizers for their work and look forward meeting in Busan in 2025.

To fill the 18-23 July 2021 slot vacated by BACO-21, we hosted an online seminar series.


IUGG Assembly in Montreal, Canada, 8-18 July 2019

The 27th International Union of Geodesy and Geophysics (IUGG) General Assembly was held in July 2019 in Montréal, Canada. 2019 marks the 100th anniversary of IUGG. IACS hosted or co-hosted more than 30 symposia between 9 and 13 July, with a wide range of snow and ice topics. Waleed Abdalati, University of Colorado, USA, gave the prestigious Union Lecture in Cryospheric Sciences. Travel grants (in total ~11,000 Euros) were available especially to support students, early career scientists and attendees from less-affluent countries.


International Symposium on the Cryosphere in a Changing Climate in Wellington, New Zealand, 12-17 February, 2017.

IACS held its 2017 symposium at Victoria University of Wellington, New Zealand. This meeting brought together three of the leading international associations focusing on the cryosphere; the International Association of Cryospheric Sciences (IACS), the International Glaciological Society (IGS) and the Climate Cryosphere Project (CliC) of the World Climate Research Programme (WCRP). Andrew Mackintosh chaired the Local Organising Committee while Ian Allison chaired the Scientific Steering Committee. 250 delegates from more than 31 countries attended this conference. IACS provided ~10,000 Euro of travel grants to allow 17 early career scientists and scientists from developing countries to attend this meeting.