How to cite: Sfîcă, L., Nicuriuc, I., Niță, A. (2019) Boundary Layer Temperature Stratification as Result of Atmospheric Circulation Within the Western Side of Brașov Depression. 2019 ”Air and Water – Components of the Environment” Conference Proceedings, Cluj-Napoca, Romania, p. 53-64, DOI: 10.24193/AWC2019_06
BOUNDARY LAYER TEMPERATURE STRATIFICATION
AS RESULT OF ATMOSPHERIC CIRCULATION WITHIN
THE WESTERN SIDE OF BRAȘOV DEPRESSION
Lucian SFÎCĂ, Ionela NICURIUC, Andrei NIȚĂ
ABSTRACT. – The study explores the connection between the atmospheric circulation and the air temperature stratification in the western part of Brașov depression during 2 years of air temperature monitoring (2013-2014) on fixed points. The monitoring points have covered the low area of the depression (Stupini - 610 m), the mountain slopes (Poiana Brașov - 1200 m) and the highest point in the region (Vf. Omu -2500 m). On the basis of daily values from these 3 observation points, 6 types of temperature stratification were established. Each of these types of stratification was analyzed according to the daily GWT atmospheric circulation types. The results indicate that the normal stratification prevails along the year, but the temperature inversion and isothermy reach 17% concerning the mean daily air temperature, 11% for the maximum daily air temperature and 35% for the minimum daily air temperature. The temperature inversion situations became prevalent concerning minimum air temperature representing the most common temperature stratification during winter mornings. From dynamic point of view, besides the well-known role of high pressure centers other diverse types of southerly, south-westerly or even westerly atmospheric circulations are related also to the occurrence of most cases of temperature inversion, while the normal stratification is related mostly to intense cyclonic activity in the region of Romania.
Keywords: temperature profile, atmospheric circulation, temperature inversion, warm belt, Brașov.
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