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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-21 20:51 |
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Conference: Bucharest University Faculty of Physics 2008 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Diagnosis of a torrential precipitation event in eastern part of Romania (POSTER)
Authors:
Irina Carolina Oprea, Simona Tascu
Affiliation:
National Administration of Meteorology, Bucharest
E-mail
carolina.oprea@meteo.inmh.ro
Keywords:
severe phenomena,precipitation,ALADIN model
Abstract:
On 5 September 2007, a flash flood (235 mm of rain in 12 hours), occurred in the city of Tecuci (eastern Romania), causing fatalities and numerous properties damages. Analyses of conventional whether station, radar and high resolution visible satellite imagery, together with ALADIN model analysis, are used to describe the synoptic and mesoscale weather patterns associated with the flash flood. Surface analysis and high resolution visible satellite imagery identified a convergence line that acted to focus thunderstorm development in a limited area. Radar reflectivity indicated that rapid cell generation occurred where the convergent line existed, just north of the Tecuci city, and existence of a strong southerly LLJ, focused the most active convection over the same area during several hours. The aim of this paper is to identify the different mesoscale processes leading to continuous regeneration of convection in the same area that contributes to the heavy rain accumulation in a short period of time in the small watershed located in eastern part of Romania.
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