Project: Past and future dynamics of the Greenland Ice Sheet: what is the ocean hiding?
The Greenland Ice Sheet has gained massive attention in recent years due to a sudden increase in mass loss at the onset of this century.
A significant part of this mass loss has been attributed to increased ice discharge at the margin through iceberg calving from marine-terminating outlet glaciers.
However, due to the lack of instrumental data beyond the past 20-30 years, it is difficult to evaluate if this was an outstanding event, or if it was part of a recurring phenomenon acting on inter-annual, inter-decadal, or centennial timescales.
It has been shown that climate warming is responsible for the recent mass loss, however, the exact processes involved in climate forcing of glacier melt is not well understood.
Altogether, this lack of knowledge is reflected in a great uncertainty in the model-based prognoses of the contribution from marine terminating glaciers to future sea level rise.