Standing Groups


IAVCEI/IACS Joint commission on Volcano-Ice Interactions CVII

IACS liaison : vacant

The Commission is charged with promoting research and interest in the complex interactions of magmas and ice in all its forms (snow, firn, ice and meltwater), on Earth and other planets.

IACS Standing Group on Glacier And Permafrost HAZards in mountains GAPHAZ

IACS liaison : Stanislav Kutuzov

Note: The Standing Group is also affiliated with the International Permafrost Association IPA.


GTN-G Steering Committee

IACS liaison (SG Chair): Liss M. Andreassen

Worldwide collection of information about glacier changes was initiated in 1894, with the foundation of the International Glacier Commission (Commission Internationale des Glaciers) at the 6th International Geological Congress in Zurich, Switzerland. Since 1986, the
World Glacier Monitoring Service (WGMS), based in Zurich, has continued to collect and publish standardized information about ongoing glacier changes and distribution and was in charge of the Global Terrestrial Network for Glaciers (GTN-G), in close collaboration with the US National Snow and Ice Data Center (NSIDC) in Boulder, and the Global Land Ice Measurements from Space (GLIMS) initiative. The WGMS is a service of the International Association of Cryospheric Sciences (IACS) and will be part of the World Data Services (ICSU).

The GTN‐G Steering Committee is established to coordinate, support, and advise the WGMS, the NSIDC, and the GLIMS initiative concerning the monitoring of glaciers and ice caps. The GTN‐G Steering Committee consists of:
(a) an Executive Board that is responsible for (i) the development and implementation of the international observation strategy for glaciers and ice caps, (ii) providing standards for the monitoring of glacier fluctuations (e.g., length change, mass balance) and for inventories, and (iii) the compilation and distribution of such information in a standardized form, and
(b) an Advisory Board that is to (i) support, (ii) consult, and (iii) periodically evaluate the work of the Executive Board and its three operational bodies concerning the monitoring of glaciers and ice caps.

Structure of the GTN-G Steering Committee

GTN-G Executive Board
1 Representative of the WGMS
1 Representative of the NSIDC
1 Representative of the GLIMS coordinating institutions

GTN-G Advisory Board
IACS Division Head for Glaciers and Ice Sheets (Chair)
1 Representative of data producers (field observations)
1 Representative of data producers (remote sensing)
1‐2 Representatives of data users (glaciological community)
1 Representative of an international umbrella organization (e.g., CliC, GCOS, GTOS, ICSU, UNEP, UNESCO, WMO)