Faculty of Physics - University of Bucharest

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FACULTY OF PHYSICS

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2024-11-23 18:20

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Conference: Bucharest University Faculty of Physics 2017 Meeting

Section: Atmosphere and Earth Science; Environment Protection

Title:

The connection between conditions of atmospheric instability and abundant rainfall in Bucharest

Authors:

Diana-Alexandra GIURGIU (1,2), Gabriela BANCILA(2)

Affiliation:

1) University of Bucharest, Faculty of Physics, P.O. Box MG-11 Bucharest, Romania

2) National Meteorological Administration, 97 Bucharest-Ploiesti Avenue, Sector 1, ZIP Code 013686, Bucharest, Romania

E-mail

g.dianalex@gmail.com

Keywords:

rainfall, instability

Abstract:

Rainfall, a meteorological phenomenon of major socio-economic interest, is associated with synoptic and aerological conditions. Abundant rainfall is associated with atmospheric fronts but also with atmospheric instability. The latter represents a challenge for the forecaster meteorologists, because it generates dangerous phenomena on limited spaces. The paper aims to identify the occurrence of pouring rains by discovering the connection between the atmospheric instability conditions and their appearance in the city of Bucharest. For large cities, such as Bucharest, whose terrestrial surface has a lower water infiltration capacity in the soil due to the intensification of construction, torrential rains constitute a risk phenomenon. In order to accomplish this study we have processed the air temperature data from three meteorological stations (Băneasa, Afumați and Filaret), the amount of precipitation higher than 10 l/mp recorded at the same stations under the management of the National Meteorological Administration, as well as the quantities from the seventeen pluviometric stations from the APA NOVA Company. In addition, the instability indices extracted from the thermodynamic diagrams of the radio-soundings in Bucharest (http://weather.uwyo.edu/upperair/sounding.html) were used. For the study were used the following three years 2014, 2015 and 2016 and were applied statistical data processing methods, and were also used GIS databases to illustrate the land use and vegetation of the metropolitan area.

References:

http://weather.uwyo.edu/upperair/sounding.html

Acknowledgement:

We thank for the data: 1. National Meteorological Administration 2. APA NOVA Company 3. University of Wyoming (http://weather.uwyo.edu/upperair/sounding.html)