Geoscience Reference
In-Depth Information
Figure 8.4.
Map of estimated mean annual sublimation (millimeters) for the Greenland
ice sheet. Positive values mean transfer from the surface to the atmosphere (from Box
and Steffen,
2001
, by permission of AGU).
depending on which method of calculation is used. Either way, sublimation emerges
as a fairly important term for the Greenland ice sheet mass budget.
8.1.6
Surface Melt Regime
Large parts of the ice sheet experience summer melt. The presence of surface melt
can be assessed using satellite passive microwave brightness temperatures (Abdalati
and Steffen,
1995
).
Figure 8.5
illustrates the portion of the ice sheet that underwent
