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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 17:53 |
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Conference: Bucharest University Faculty of Physics 2009 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
The Black Sea breeze characteristics in South Eastern Romania, depicted by Doppler radar
Authors:
Victor-Daniel Carbunaru , Aurora Bell
Affiliation:
National Meteorological Administration sos. Bucuresti-Ploiesti 97,Bucharest, Romania
E-mail
daniel.carbunaru@meteoromania.ro
Keywords:
convection, sea breeze, Doppler radar, forecasting, mesoscale
Abstract:
The Romanian severe convective storms, as revealed by the NEXRAD-like network, do not cease to enchant and challenge the forecasters by the diversity of forms and processes involved. The mechanisms that work to initiate severe storms are the focus scientists in order to enhance the ability to forecast severe weather associated with convection.
The paper investigates mainly the role of the Black Sea, as a source of moisture, wind convergence and shear in initiating convective storms in the South Eastern part of Romania. The role of the sea breeze front and its intersection with gust fronts, horizontal convective rolls, convergence zones and lines are presented, together with the associated conceptual models for storms initiation. The paper presents some of the characteristics of the sea breeze seen by the Doppler radar installed at Medgidia. These are: wind distribution as derived from VAD product, movement and intensity of the sea breeze front, influence of topography. The radar data, provided by the S-Doppler network during 2004-2008, have been complemented with satellite, sounding and NWP from hydrostatic and non-hydrostatic models used in operational environment.
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