Announcement of the GTN-G Glacier regions dataset

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Announcement of the GTN-G Glacier regions dataset

Andreassen Liss Marie

Dear Colleagues,


Glacier regions are useful for regional assessments of glacier change and other parameters. We hereby announce the GTN-G Glacier Regions dataset. This dataset is a joint set of regions recommended by the Global Terrestrial Network for Glaciers

(GTN-G) Advisory Board, the Global Land Ice Measurements from Space initiative (GLIMS), the Randolph Glacier Inventory (RGI) Working Group of the International Association of Cryospheric Sciences (IACS), and the World Glacier Monitoring Service (WGMS).


The GTN-G Glacier regions dataset defines 19 first-order glacier regions and more than 90 second-order regions encompassing all of earth's glaciers and ice caps. It is an update of the RGI dataset 5.0 with some small modifications from the WGMS glacier regions. The GTN-G glacier regions are already implemented in RGI 6.0 released this July and are implemented in the coming Global Glacier Change Bulletin to be released by WGMS later this year.


The dataset is now available for download at The website gives further details and references.


Best regards,

on behalf of IACS, GLIMS, GTN-G, RGI, and WGMS,


Liss M. Andreassen

Graham Cogley

Alex Gardner

Regine Hock

Bruce Raup

Michael Zemp



Liss M. Andreassen, ph.d,

Senior Research Scientist

Section for Glaciers, Ice and Snow

Norwegian Water Resources and Energy Directorate (NVE)

POBox 5091 Majorstuen

N-0301 Oslo



International Association of Cryospheric Sciences (IACS)



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