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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 16
Adv. Geosci., 16, 33–41, 2008
https://doi.org/10.5194/adgeo-16-33-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.
Adv. Geosci., 16, 33–41, 2008
https://doi.org/10.5194/adgeo-16-33-2008
© Author(s) 2008. This work is distributed under
the Creative Commons Attribution 3.0 License.

  09 Apr 2008

09 Apr 2008

Process-oriented statistical-dynamical evaluation of LM precipitation forecasts

A. Claußnitzer, I. Langer, P. Névir, E. Reimer, and U. Cubasch A. Claußnitzer et al.
  • Institut f¨ur Meteorologie, Freie Universität Berlin Carl-Heinrich-Becker-Weg 6-10, D-12165 Berlin, Germany

Abstract. The objective of this study is the scale dependent evaluation of precipitation forecasts of the Lokal-Modell (LM) from the German Weather Service in relation to dynamical and cloud parameters. For this purpose the newly designed Dynamic State Index (DSI) is correlated with clouds and precipitation. The DSI quantitatively describes the deviation and relative distance from a stationary and adiabatic solution of the primitive equations. A case study and statistical analysis of clouds and precipitation demonstrates the availability of the DSI as a dynamical threshold parameter. This confirms the importance of imbalances of the atmospheric flow field, which dynamically induce the generation of rainfall.

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