Glaciologist measuring a glacier

Numéro d’image : 11739134
Glaciologist measuring a glacier
MODEL RELEASED. Glaciology research. Glaciologist making notes after inserting an ablation stake into a hole drilled into the Marmaglaciaren glacier,Swedish Lapland. The hole was made by a Heucke steam drill (hoses at left). An ablation stake of known depth is inserted at the end of the snow accumulation season (winter). At the end of the melting season (summer),the glaciologist will return and measure how much ice has melted by comparing the level to that of the stake. Comparing this value with the amount of snow accumulated gives the mass balance,the net change in the glacier over a year. This gives a valuable measure of the effects of climate change
Licence : Droits gérés
Crédit: Science Photo Library / Hay Jones, David
Taille de l’image : 5163 px × 3396 px
Model Release : Disponible
Property Release : Non requis
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