DATE2018-05-19 12:21:21
IDABSTRACT20180519122121-0244
CONTACTbozbura@itu.edu.tr
PRESENTATIONORAL
INVITED0
IDSESSION4
TITLETRAJECTORIES OF CYCLONES AFFECTING TURKEY AND SOURCE OF PRECIPITATION
AUTHORSM Bozbura (1), ÖL Sen (2), Y Ezber (3)
AFFILIATIONS
  1. Eurasia Institute of Earth Sciences, Istanbul, Turkey
  2. Eurasia Institute of Earth Sciences, Istanbul, Turkey
  3. Eurasia Institute of Earth Sciences, Istanbul, Turkey
ABSTRACTMid-latitude cyclones are the low-pressure systems that control the climate of mid-latitudes. Cyclones influence the precipitation patterns, so examining the cyclones is very important to understand the climate in a certain region. The source of precipitation in Turkey is characterised by cyclones that occur in the Mediterranean Basin. The way to understand the source of precipitation in Turkey is to examine climatology of the Mediterranean cyclones. Therefore, identifying cyclones affecting Turkey and finding their trajectories and revealing the source of precipitation are the main purpose of this study. The cyclone identification and tracking procedures are conducted by using the University of Melbourne automatic cyclone tracking scheme and 6-hourly mean sea level pressure (MSLP) fields. These MSLP datasets are ERA-Interim having 1.0° x 1.0° and NCEP Reanalysis 2 having 2.5° x 2.5° spatial resolution. The major sources of precipitation and the cyclones are obtained which are the Gulf of Genoa, northern Italy, the Aegean Sea, the Black Sea, Cyprus, and North Africa regions. The most of the cyclones affecting Turkey are generally westerly and they follow a southerly trajectory in winter, however, their trajectories become northerly towards summer. This study is continued to examine the changes in the cyclone sources. To achieve this CCSM4 MSLP fields are being used for the time intervals 1871-1900, 1961-1990, and 2071-2100.
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