1939
35 of 44 measured glacier tongues retreated.
Glaciers measured44single-year length change
Advancing716%
Retreating3580%
Median change−5.5m
Mass balance−0.07m w.e.mean of 3 glaciers
Length change
44 tongues measured
Mass balance
3 glaciers
| Glacier | Annual balance |
|---|---|
| Grosser Aletschgletscher | −0.37 m w.e. |
| Silvrettagletscher | +0.03 m w.e. |
| Claridenfirn | +0.14 m w.e. |