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PDD Melt

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PDD Melt

by Felix Hebeler

 

12 Feb 2007 (Updated 26 Feb 2007)

Calculates melt for a DEM based on positive degree days factor

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Description

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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MATLAB release MATLAB 7.2 (R2006a)
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Comments and Ratings (1)
31 Jan 2009 Joshua Carmichael

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

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Updates
26 Feb 2007

-Fixed bug in parameter passing
-Updated minimum altitude to default to min(dem(:))
-corrected help

Tag Activity for this File
Tag Applied By Date/Time
positive degree days Felix Hebeler 22 Oct 2008 09:00:30
model Felix Hebeler 22 Oct 2008 09:00:33
melt Felix Hebeler 22 Oct 2008 09:00:33
dem Felix Hebeler 22 Oct 2008 09:00:33
earth sciences Felix Hebeler 22 Oct 2008 09:00:33

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