Temperature thresholds for degree-day modelling of Greenland ice sheet melt rates

Publication date

2010

Authors

van den Broeke, MichielORCID 0000-0003-4662-7565ISNI 0000000389564445
Bus, C.
Ettema, J.ISNI 0000000397112860
Smeets, P.

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Supervisors

Document Type

Article
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Abstract

[1] 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. Citation: van den Broeke, M., C. Bus, J. Ettema, and P. Smeets (2010), Temperature thresholds for degree‐day modelling of Greenland ice sheet melt rates,

Keywords

SDG 13 - Climate Action

Citation

van den Broeke, M R, Bus, C, Ettema, J & Smeets, P 2010, 'Temperature thresholds for degree-day modelling of Greenland ice sheet melt rates', Geophysical Research Letters, vol. 37, no. 18, L18501, pp. 1-5. https://doi.org/10.1029/2010GL044123