Original Paper

Meteorology and Atmospheric Physics

, Volume 119, Issue 1, pp 31-42

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

On correcting precipitation as simulated by the regional climate model COSMO-CLM with daily rain gauge observations

  • Ralf LindauAffiliated withMeteorological Institute, University of Bonn Email author 
  • , Clemens SimmerAffiliated withMeteorological Institute, University of Bonn


Precipitation amounts simulated by the regional climate model COSMO-CLM are compared with observations from rain gauges at German precipitation stations for the period 1960–2000. The model overestimates precipitation by about 26 %. This bias is accompanied with a shift of the frequency distribution of rain intensities. The model overestimation varies regionally. A correction function is derived which adjusts rain intensities at every model grid point to the observations.