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| Titel |
The interaction of northern wind flow with the complex topography of Crete Island – Part 1: Observational study |
| VerfasserIn |
I. Koletsis, K. Lagouvardos, V. Kotroni, A. Bartzokas |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 9, no. 6 ; Nr. 9, no. 6 (2009-11-11), S.1845-1855 |
| Datensatznummer |
250007054
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| Publikation (Nr.) |
 copernicus.org/nhess-9-1845-2009.pdf |
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| Zusammenfassung |
| The island of Crete with its mountain ranges is an excellent example of a
major isolated topographic feature, which significantly modifies the
regional airflow as well as the pressure and temperature fields. During
summer, when northerly winds are blowing over the Aegean Sea (a large number
of which are characterized as Etesians), the highly complex topography of
Crete plays an important role in the modification of this northern wind
flow. The main objective of this study is to determine the role of the
topography of Crete Island during this wind flow on the strong downslope
winds at the southern parts of the island as well as on the development of a
gap flow between the two highest mountains of the island (Lefka Ori and
Idi). For that purpose, observational data from four meteorological stations
located along the aforementioned gap are used along with QuikSCAT satellite
data. The observational analysis shows that the interaction of the northern
wind flow with the mountains of Crete Island produces an upstream
deceleration, a leftward deflection of the air as this approaches the
mountains and an intensification of the winds at the southern coasts
accompanied with a temperature increase. Furthermore, the maximum of the gap
flow is observed at the exit region of the gap. |
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