Μελέτη τεσσάρων περιπτώσεων ισχυρής βροχόπτωσης κατά το μήνα Αύγουστο στη Σπάρτη

Postgraduate Thesis uoadl:1318530 134 Read counter

Unit:
Τομέας Φυσικής Εφαρμογών
Library of the School of Science
Deposit date:
2012-07-13
Year:
2012
Author:
Βάρλας Γεώργιος
Supervisors info:
Αφυπ. Αναπλ. Καθηγητής Πισιμάνης Δημήτριος (Επιβλέπων), Αφυπ. Αναπλ. Καθηγήτρια Νοταρίδου Βασιλική, Αναπλ. Καθηγήτρια Φλόκα Έλενα
Original Title:
Μελέτη τεσσάρων περιπτώσεων ισχυρής βροχόπτωσης κατά το μήνα Αύγουστο στη Σπάρτη
Languages:
Greek
Summary:
The scope of this diploma thesis is the study of the four heaviest storms that
were observed during August at Sparta in the period between 1975 and 2004
(except from four years where there were no measurements available) according
to the measurements provided by the Sparta meteorological station of the
Hellenic National Meteorological Service. The study includes analysis of
synoptic maps on the standard isobaric levels and radiosonde data from the
nearest radiosonde station (Helliniko, Athens). Moreover, the distribution of
the relative vorticity and relative vorticity advection fields at the isobaric
level of 300 hPa and temperature advection fields at isobaric level of 700 hPa
and in one case at 700 hPa and at 850 hPa is calculated (using geopotential and
temperature data from ECMWF). These four cases are examined in terms of the
existence of potential instability before the start of the rainfall. For the
most recent of the four storms the numerical model RAMS/ICLAMS was additionally
employed. The results of these calculations are considered towards making
useful conclusions about those storm incidents in order to achieve better
accuracy of the forecast of similar phenomena in that area in the future.
Keywords:
Rain, Instability, Thunderstorm, Sparta, Vorticity
Index:
No
Number of index pages:
9-12
Contains images:
Yes
Number of references:
12
Number of pages:
182
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