On the atmospheric circulation characteristics associated with fog in Ioannina, north-western Greece
Φόρτωση...
Ημερομηνία
Συγγραφείς
Houssos, E. E.
Lolis, C. J.
Gkikas, A.
Hatzianastassiou, N.
Bartzokas, A.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
International Journal of Climatology
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
The evolution of the atmospheric circulation over Europe and the Mediterranean during fog events in Ioannina, north-western Greece, is examined for the period 19572002. A 24-h period starting at 12:00 UTC is defined as a fog day, when at least one of the present and/or past weather codes of the corresponding SYNOPs refers to fog. A sequence of such fog days is defined as a fog event. In total, 1019 fog events are found during the period under study. A methodology scheme using S-mode factor analysis and K-means cluster analysis is applied to the patterns of 850 hPa air temperature and 1000 and 500 hPa geopotential heights for the day before the initiation, the first day of occurrence and the day after the dissipation of fog, resulting in the classification of the 1019 fog events into ten clusters. For each one of the ten clusters, the mean 00:00 UTC patterns of the above parameters are constructed for 3 days. These patterns correspond to the evolution of the atmospheric circulation associated with fog formation and dissipation in the Ioannina region. Most of the patterns are characterized by anticyclonic activity or a weak southerly flow over Greece. The differences among the ten clusters refer mainly to the position and the intensity of the surface and upper air synoptic systems involved. Copyright (c) 2011 Royal Meteorological Society
Περιγραφή
Λέξεις-κλειδιά
fog, fog initiation, fog dissipation, atmospheric circulation, north-western greece, multivariate statistics, factor analysis, cluster analysis, radiation fog, new-york, thessaloniki, climatology, forecast, airport, model, area
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000309454700008
http://onlinelibrary.wiley.com/store/10.1002/joc.2399/asset/2399_ftp.pdf?v=1&t=hfwdtzgw&s=f806422da41be7ffcf4ace8f1355965489bba5ba
http://onlinelibrary.wiley.com/store/10.1002/joc.2399/asset/2399_ftp.pdf?v=1&t=hfwdtzgw&s=f806422da41be7ffcf4ace8f1355965489bba5ba
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών