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The Cryosphere An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 4
The Cryosphere, 7, 1017-1034, 2013
https://doi.org/10.5194/tc-7-1017-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
The Cryosphere, 7, 1017-1034, 2013
https://doi.org/10.5194/tc-7-1017-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 01 Jul 2013

Research article | 01 Jul 2013

A regional climate model hindcast for Siberia: analysis of snow water equivalent

K. Klehmet, B. Geyer, and B. Rockel K. Klehmet et al.
  • Institute of Coastal Research, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany

Abstract. This study analyzes the added value of a regional climate model hindcast with respect to snow water equivalent (SWE) for Siberia when compared to SWE estimates from forcing NCEP-R. In addition, we examine the discrepancies of simulated SWE to several recent reanalysis products (NCEP-R2 NCEP-CFSR, ERA-Interim). We apply the regional climate model COSMO-CLM (CCLM) to a 50 km grid spacing using NCEP-R1 as driving force to obtain a 63 yr (1948 to 2010) gridded dataset of historical SWE. Simulated regional climate data is necessary because of the absence of station data in that region. To perform large-scale assessments we use the satellite-derived daily SWE product of ESA DUE GlobSnow from 1987 to 2010. Russian station SWE data is used for cross-checking the findings. In January (mid-winter), the SWE hindcast is in good agreement with GlobSnow, whereas it overestimates SWE during the melting season. CCLM shows a clear added value in providing realistic SWE information compared to the driving reanalysis. The temporal consistency of CCLM is higher than that presented by ERA-Interim and NCEP-R2.

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