Articles | Volume 10, issue 1
The Cryosphere, 10, 459–463, 2016
https://doi.org/10.5194/tc-10-459-2016
The Cryosphere, 10, 459–463, 2016
https://doi.org/10.5194/tc-10-459-2016

Brief communication 01 Mar 2016

Brief communication | 01 Mar 2016

Brief Communication: Upper-air relaxation in RACMO2 significantly improves modelled interannual surface mass balance variability in Antarctica

Willem Jan van de Berg and Brooke Medley

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Short summary
Regional climate models improve the spatial surface mass balance (SMB) patterns in Antarctica compared to reanalyses, but they deteriorate the representation of interannual variability in SMB. Hence, we implemented additional nudging in our regional climate model RACMO2. Using annual SMB observations of the Twaites drainage basin, Antarctica, we show that this nudging vastly improves the representation of interannual variability without significant deterioration of the modelled mean SMB fields.