Validation of ERA-Interim Precipitation Estimates over the Baltic Sea
AbstractEuropean Centre for Medium-Range Weather Forecasts (ECMWF) ERA-Interim reanalysis total precipitation estimates are validated against ten years of in situ precipitation measurements onboard of ships over the Baltic Sea. A statistical analysis for binary forecasts and mean rain rates derived from all data show a good agreement with observations. However, a closer look reveals an underestimation of ERA-Interim total precipitation in spring and an overestimation in autumn, obviously related to stability. Deriving stability and evaporation by a bulk flux scheme it could be shown, in fact, that ERA-Interim underestimates precipitation for conditions with low evaporation and strongly overestimates it for conditions with high evaporation. Since ERA-Interim surface fields become too dry with increasing evaporation compared to independent synoptic ship observations, uncertainties in the ECMWF convection scheme may possibly cause these biases in seasonal precipitation. View Full-Text
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Bumke, K. Validation of ERA-Interim Precipitation Estimates over the Baltic Sea. Atmosphere 2016, 7, 82.
Bumke K. Validation of ERA-Interim Precipitation Estimates over the Baltic Sea. Atmosphere. 2016; 7(6):82.Chicago/Turabian Style
Bumke, Karl. 2016. "Validation of ERA-Interim Precipitation Estimates over the Baltic Sea." Atmosphere 7, no. 6: 82.
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