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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:09 |
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Conference: Bucharest University Faculty of Physics 2012 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Meteorological conditions generating atmospheric instability followed by heavy rains
Authors:
Florinela GEORGESCU
Affiliation:
National Meteorological Administration, 97 Bucuresti -Ploiesti Str., Bucharest, Romania
E-mail
florinela.georgescu@meteoromania.ro
Keywords:
instability, heavy rain, conceptual model
Abstract:
The aim of this work is to analyze the atmospheric instability conditions that determined torrential heavy rains in May 2012 on extended areas in Romania and to identify the conceptual models involved in each individual event. This action is very important because in the case of the strong instability events, warnings are issued in order to protect people and property. The quick and accurate decision of the weather forecaster is based on the interpretation of the measured meteorological data and the numerical model results, using a conceptual model. In the days with these heavy rain events, using satellite and radar data, as well as data from the both ECMWF deterministic numerical global model and the ALARO limited area numerical model, the conceptual models have been recognized. The performed analysis showed that in the meteorological conditions triggering torrential heavy rains in the warm season, more than one conceptual model were recognized for each episode of strong instability. This shows the complexity of the atmospheric processes generating weather extreme events and importance of identification of conceptual model to be used for forecasting.
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