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PDD Melt

version 1.0 (2.71 KB) by

Calculates melt for a DEM based on positive degree days factor

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Simple function to calculate melt rates in meter water equivalent per year for a digital elevation model (DEM) based on positive degree days factor (PDD) using seasonal variation.
User can specify factors: mean annual temperature, PDD_ice, seasonal variation in degrees and year length.
Approach following Marshall, SJ and Clarke, GKC 1999: Ice sheet inception: subgrid hypsometric parameterization of mass balance in an ice sheet model. Climate Dynamics 15:533-550
Does not include different PDDs for ice and snow yet, nor does it consider refreezing etc yet.

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Comments and Ratings (5)

Rivas Marquez

could you please attach a dem so I can run some trials

Rivas Marquez

could you please attach a dem so I can run some trials

Aslak Grinsted

Aslak Grinsted (view profile)

Aslak Grinsted

Aslak Grinsted (view profile)

Seems to work well. Would like to use shorter time periods.

MATLAB Release
MATLAB 7.2 (R2006a)

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