Physics
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3718501v&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 18, CiteID L18501
Physics
3
Cryosphere: Ice Sheets, Cryosphere: Snowmelt, Cryosphere: Energy Balance, Cryosphere: Mass Balance (1218, 1223)
Scientific paper
Degree-day factors (DDFs) are calculated for the ice sheet ablation zone in southwest Greenland, using measurements of automatic weather stations and a regional atmospheric climate model. The rapid increase of DDFs for snow and ice towards higher elevations is caused by the increasing dominance of short daytime melting and nocturnal refreezing. This spatial inhomogeneity can be avoided by choosing a lower threshold for daily average 2 m air temperature (268 K instead of 273.15 K) for the degree-day calculation.
Bus Carlijn
Ettema Janneke
Smeets Paul
van den Broeke Michiel
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