Unit:
Κατεύθυνση Φυσική Περιβάλλοντος (ΕΦΑΡΜΟΣΜΕΝΗ ΦΥΣΙΚΗ)Library of the School of Science
Author:
Doulgeraki Vasiliki
Supervisors info:
Φλόκα Έλενα, Αναπληρώτρια Καθηγήτρια, Τμήμα Φυσικής, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών
Original Title:
ΚΛΙΜΑΤΟΛΟΓΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΚΥΚΛΩΝΙΚΩΝ ΤΡΟΧΙΩΝ ΠΟΥ ΔΗΜΙΟΥΡΓΟΥΝΤΑΙ ΣΤΗ ΜΕΣΟΓΕΙΟ
Translated title:
OBJECTIVE CLIMATOLOGY OF CYCLONIC TRACKS ORIGINATING IN THE MEDITERRANEAN REGION
Summary:
Cyclonic tracks affect the regional climate and mainly the rainfall distribution. Mediterranean cyclones are characterized by significant spatial and temporal variability due to the particular location and morphology of the basin. Considering the cyclogenetic behavior of Mediterranean and its vulnerability to climatic change, the study of Mediterranean cyclonic tracks is of great importance for climatological research. The purpose of this study is to perform an objective climatology of surface cyclonic tracks originating in the Mediterranean during a 19-yr period(1990-2008). The identification and tracking of the cyclones was performed with the aid of the Melbourne University algorithm based on 6h-datasets of mean sea level pressure of the Interim ECMWF Re-Analysis with 1.5°x1.5°spatial resolution. Three regions are distinguished to better investigate the properties of the Mediterranean cyclones, such as frequency, genesis and dissipation, scale, depth and intensity. It was found that in the Eastern Mediterranean the cyclones are in general weaker, with smaller size and depth, as compared to those originated in Western and Central Mediterranean, due to the different mechanisms that act in each region. Furthermore, the frequency of Eastern Mediterranean cyclones is specially increased during summer. The percentage of strong cyclones that can be characterized as explosive is very low(0.4%).
Main subject category:
Science
Keywords:
Mediterranean, climatology, frequencies, cyclonic tracks, MS algorithm
Number of references:
103
