Mass Balance Factsheet for the Graasubreen, Scandinavia
Gråsubreen (now written with an -an ending on official maps: Gråsubrean) is located on the northeastern side of the Glittertind mountain in eastern Jotunheimen. Gråsubreen has an area of 1.7 km² (2019). Mass balance measurements started in 1962, and have been running continuously since then. Gråsubreen is a polythermal glacier. Gråsubreen is one of the most continental glaciers in Norway. Therefore, the summer balance has a greater significance for the net balance than on the maritime glaciers. Further information and references for Gråsubreen is given on NVE’s webpage.
For information on the status of the glacier and on data relating to annual mass balance and other measurements, visit the WGMS Fluctuations of Glaciers Browser.
FACTS:
- Political unit: NO
- WGMS ID: 299 (Local ID: 2743)
- Latitude: 61.66°N
- Longitude: 8.60°E
- Height min: 1854 m a.s.l.
- Height max: 2277 m a.s.l.
- Measurement types: MASS BALANCE &THICKNESS CHANGE
- Current Principal Investigator: LISS M. ANDREASSEN & Colleagues
- Current Sponsoring Agency: NORWEGIAN WATER RESOURCES AND ENERGY DIRECTORATE (NVE) – SECTION FOR GLACIERS, ICE AND SNOW (OSLO, NO)
Graasubreen in September 2014 (taken by Liss M. Andreassen on 11/09/2014)
Terrestrial and satellite map of Graasubreen (Google Maps)
Graasubreen Annual Mass Balance (WGMS, 2016)
Continuous Mass Balance (MB) measurements since 1961/62:
Additional data available: Thickness Change (TC) and Glacier Outlines:
Selected references:
Andreassen, L. M., H. Elvehøy, B. Kjøllmoen, and R. V. Engeset, R. V. 2016. Reanalysis of long-term series of glaciological and geodetic mass balance for 10 Norwegian glaciers, The Cryosphere, 10, 535-552, doi:10.5194/tc-10-535-2016.
NVE’s report series Glasiologiske undersøkelser i Norge/Glaciological investigations in Norway. Norwegian Water Resources and Energy Directorate. Reports are available as pdf’s at https://www.nve.no/hydrology/glaciers/glaciological-investigations-in-norway/.