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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:37 |
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Conference: Bucharest University Faculty of Physics 2007 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Mesosynoptic feature associated with a major flash flood in central part of Romania
Authors:
Carolina Oprea1, Narcisa Milian2, Mihaela Stancescu2
Affiliation:
1 National Administration of Meteorology, Bucharest
2 Regional Centre of Meteorology, Sibiu
E-mail
carolina_oprea@yahoo.com
Keywords:
flash-flood
mescoscale
composite analysis
Abstract:
Flash floods are responsible for more fatalities in the Romanian territory than any other convective storm-related phenomenon. The flash-floods occurs when a large amount of rain falls at a certain location in a short period of time. Heavy precipitation events in the Romanian region typically occur downstream of a significant cyclone aloft, often exhibiting “cut-off” cyclone characteristics. Mediterranean and Black Sea proximity provide a source of moisture for Romanian territory and Carpathian Mountains provide forcing, but the ways by which basic ingredients for heavy precipitation are brought together can vary substantially from case to case and in different parts of the country. Upon the installation of the eight Doppler radars, five of which are WSR-98Ds, the Romanian forecasters faced challenging issues. Answers to questions such as what is the prevalent storm type that causes severe weather and where severe weather happens more often are beginning to emerge. This study examines 2005 August 23-th flash floods case in central part of Romania using composite analysis to elucidate the synoptic and mesoscale conditions associated with large amount of precipitations.
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