Authors: H A Flocas P Kountouris J Kouroutzoglou M Hatzaki K Keay I Simmonds
Publish Date: 2012/08/10
Volume: 112, Issue: 3-4, Pages: 375-388
Abstract
The vertical structure of surface cyclonic tracks affecting the eastern Mediterranean region is studied on a climatological basis for the cold period of the year The dataset used is the 1° × 1° ERA40 Reanalysis for a 40year period 1962–2001 The vertical tracking of surface cyclonic tracks was performed with the aid of the Melbourne University Vertical Tracking Algorithm It was found that about 83 of the cyclones were extended up to the 500hPa level and almost 65 up to 200hPa level implying that the cyclones are in general well organized The surface tracks that originate within the examined area exhibit the smallest vertical extension intensity radius and depth compared to the cyclones originating in the other sectors Moreover the 500hPa counterparts for the said cyclones are mainly located to the northwest or southwest of the surface cyclone position consistent with the baroclinic character of the Mediterranean cyclones The zonal eastward component of motion predominates both at the surface and at 500 hPa
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