Performance Evaluation of COSMO-CLM (CCLM) over Istanbul

Sonuç C., Ünal Y.

COSMO/CLM/ICON/ART User Seminar, Offenbach, Germany, 6 - 08 March 2017, pp.17

  • Publication Type: Conference Paper / Summary Text
  • City: Offenbach
  • Country: Germany
  • Page Numbers: pp.17
  • Istanbul Technical University Affiliated: Yes


The goal of the study is to evaluate the performance of non-hydrostatic regional climate model COSMO-CLM (CCLM) in capturing 2-m temperature and precipitation over Istanbul, Turkey. Associated processes are examined in the framework of ERAfrica, which is supported by The Scientific and Technological Research Council of Turkey (TUBITAK) with a project number 114Y047, by conducting a set of nesting simulations. NCAR/NCEP Reanalysis data is dynamically downscaled to first coarse resolution (0.44◦ ) over mother domain, which covers Turkey and its vicinity. Then, the results are downscaled to 0.11◦ over the western part of Turkey and finally to 0.0275◦ over Istanbul. The simulations cover the periods of 1971-2005. The validation of CCLM is performed with respect to various observational data sets. These datasets are provided by Climatic Research Unit (CRU), European Climate Assessment & Dataset and the Turkish State Meteorological Service (TSMS). The detailed evaluation and analysis results will be presented and discussed in annual and seasonal basis.