The six possible combinations of climate and melt models are tested by comparing the predicted ablation to measurements taken at stakes drilled into glaciers on the ice sheet. These surface measurements do not account for the refreezing of meltwater within the snow cover or the glacier, it is therefore more appropriate to compare them to the melting predicted by the snowpack model than to the runoff value. The two climate / snowpack models are furthermore tested by comparing the predicted extent of the wet snow zone to satellite measurements.