CLASSIFICATION OF CIRCULATION TYPES OVER BULGARIA: METHOD DESCRIPTION, FREQUENCY, VARIABILITY AND TREND ANALYSIS.
Journal Title: International Journal of Advanced Research (IJAR) - Year 2018, Vol 6, Issue 3
Abstract
A classification of circulation types for the region of Bulgaria is made on daily basis using subjective (manual) approach, covering 56-year period (1961-2016). The classification is based on mean sea level pressure (MSLP) and 500hPa data from (20th century reanalysis at 00, 06, 12 and 18UTC time) within the area of 30? - 75?N and 20?W - 50? E. 13 types at 500hPa (8 cyclonic and 5 anticyclonic) and 16 types at MSLP (8 cyclonic, 6 anticyclonic and 2 low gradient) are differentiated, described and visualized with examples. The work starts with brief summary of other well-known classifications of the circulation in northern hemisphere and in different parts of Europe. The frequency distribution of circulation types, on the seasonal, annual and decadal time scale are presented and analyzed. Annual distribution and annual trend analyses of the circulation types are described. Finally, additional comments are done about the annual and seasonal variability, concerning some circulation types with greater influence on the territory of Bulgaria.
Authors and Affiliations
Vulcho Pophristov, Elisaveta Peneva.
Keywords
Related Articles
- EP ID EP284647
- DOI 10.21474/IJAR01/6798
- Views 66
- Downloads 0
THE REQUIREMENTS FOR TRANSFER PRICING DOCUMENTATION WITHIN THE FRAME OF BEPS ACTION PLANS.
As one of the pioneers and major contributors to the Base Erosion and Profit Shifting (BEPS) initiative of the Organisation for Economic Co-operation and Development (OECD) and G-20 countries, on 16 March 2016, the Reven...
SHELF LIFE IMPROVEMENT OF FOOD PRODUCTS ON EXPOSURE TO GAMMA-RADIATION.
Ionizing radiation was first recognized with the discovery of x-rays. Within a year of its discovery, it was suggested as a means to kill microorganisms in food. Gamma rays also with specific energies come from the spont...
FTIR, XRD,SEM/EDAX ANALYSIS OF COASTAL SOIL SAMPLES OF KANYAKUMARI DISTRICT IN FULL MOON AND NEW MOON DAY.
Beaches are one of the important land forms and the most important feature of coastal morphology. Coastal soil samples contain the most economically important mineral accumulations. The total land mass of the earth we ca...
FATE OF DYSPEPTIC SYMPTOMS FOLLOWING LAP. CHOLECYSTECTOMY.
Background: Laparoscopic cholecystectomy is the standard treatment for symptomatic gallstone disease. Symptoms of abdominal pain, nausea, food intolerance, and others are common, and their relationship to biliary disease...
ZINC AND Α-LIPOIC ACID AMELIORATES TESTICULAR DAMAGE AND OXIDATIVE STRESS IN CYPERMETHRIN-INTOXICATED RAT.
The current study was aimed to assess the protective role of zinc and lipoic acid on testicular damage and oxidative stress in Cypermethrin intoxicated male Wistar rats. Animals were exposed to cypermethrin at two differ...