Evaluation of the HIRLAM and HARMONIE Numerical Weather Prediction Models during an Air Pollution Episode over Greater Istanbul Area

Toros H., GEERTSEMA G., CATS G.

CLEAN-SOIL AIR WATER, cilt.42, sa.7, ss.863-870, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 7
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1002/clen.201200306
  • Dergi Adı: CLEAN-SOIL AIR WATER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.863-870
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

We have evaluated the performance of operational versions of the numerical weather prediction (NWP) model HIRLAM and HARMONIE in severe air pollution atmospheric conditions in Istanbul in November 18-20 of 2009. During the episode, a high pressure system over northwest Turkey, including Istanbul, lead to the formation of an exceptional ground-based temperature inversion. The forecasts generated by HIRLAM and HARMONIE models were compared to observations at meteorological stations in the area. Both HIRLAM and HARMONIE 24 h's forecasts are successful to predict possible episode conditions due to meteorological circumstances, and thus both models provide reliable weather input to an air pollution warning system. Results of this study are important especially for those involved in NWP, in air pollution modeling and decision making where high resolution NWP model outputs are becoming a valuable product.