Brief communication: An ice surface melt scheme including the diurnal cycle of solar radiation

Krebs-Kanzow, Uta; Gierz, Paul; Lohmann, Gerrit

We propose a surface melt scheme for glaciated land surfaces, which only requires monthly mean short-wave radiation and temperature as inputs, yet implicitly accounts for the diurnal cycle of short-wave radiation. The scheme is deduced from the energy balance of a daily melt period, which is defined by a minimum solar elevation angle. The scheme yields a better spatial representation of melting than common empirical schemes when applied to the Greenland Ice Sheet, using a 1948–2016 regional climate and snowpack simulation as a reference. The scheme is physically constrained and can be adapted to other regions or time periods.

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Krebs-Kanzow, Uta / Gierz, Paul / Lohmann, Gerrit: Brief communication: An ice surface melt scheme including the diurnal cycle of solar radiation. 2018. Copernicus Publications.

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Rechteinhaber: Uta Krebs-Kanzow et al.

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