Modeling of Stochastic Process of Implementation of Various Combinations of Dangerous Meteorological Phenomena in the Mountains of the Caucasus

Yıl 2019, Cilt: 7 Sayı: 2, 1 - 7, 27.12.2019

Mariam Elizbarashvili , Elizbar Elizbarashvili

Öz

The mountainous
regions of Caucasus are characterized by the exceptional variety of dangerous
meteorological phenomena that often cause significant material damage and human
losses. These dangerous meteorological phenomena often occur simultaneously and
exacerbate the situation. For example, increased wind during heavy rains, fog
during snowstorms, hurricanes with hail, etc. To reduce the negative effects of
such phenomena, it is necessary to know their probabilistic characteristics in
given area.

These meteorological
phenomena are independent of each other, therefore the physical process of
their occurrence has stochastic nature and it can be investigated as a random
process based on the well-known probability theorems of multiplication and
addition.

Using these
theorems, the stochastic process of realizing various combinations of dangerous
meteorological phenomena in the Caucasus Mountains is modeled. For the Caucasus
Mountains, the most likely is the implementation of snowstorm, hurricane wind
or hail in combination with dangerous fog. The occurrence probabilities of one
of the complex events, probability of the joint implementation of complex of
both events and the periods of risk recurrence are identified.

Anahtar Kelimeler

Meteorological Phenomena, Mountains of the Caucasus

Kaynakça

• Agekyan, T. A., 1972. Fundamentals of the theory of errors. Nauka, 170, Moscow.
• Alibegova, Zh..D., Elizbarashvili, E.Sh. 1980. Statistical structure of atmospheric precipitations in mountainous regions. Gidrometeoizdat, 136. Leningrad.
• Kobysheva, N.V. 1971. Indirect calculations of climatic characteristics. Gidrometeoizdat, 191, Leningrad.
• Dangerous hydrometeorological phenomena in the Caucasus. 1983. Gidrometeoizdat, 263, Leningrad.
• Elizbarashvili, E. Sh. 2017. The climate of Georgia. 360, Tbilisi, Georgia.
• Elizbarashvil, E.Sh., Varazanashvili, O.Sh., Tsereteli, N.S., Elizbarashvili, M.E. and Elizbarashvili, Sh.E. 2012, Dangerous fogs on the territory of Georgia. Meteorology and Hydrology, 2, 52-59.
• Elizbarashvili, E.Sh., Varazanashvili, O.Sh., Tsereteli, N.S. and Elizbarashvili, M.E. 2013. Hurricane winds in Georgia. Meteorology and hydrology, 3, 43-46.
• Elizbarashvili, E.Sh., Gongladze, N.Sh., Vlasova, S.R., Alborova, B.G. and Popov, A.A. 1983. About thunderstorm activity in Eastern Georgia. Bulletin of AN SSSR., Series of geography, 1, 104 - 110.
• Elizbarashvili, E.Sh., Zubitashvili, T.K. 2007. Fogs in Eastern Georgia. Proceedings of the Russian Academy of Sciences, Series of geographyc, 5, 112-115.
• Elizbarashvili, E.Sh., Elizbarashvili, M.E. 2012. Natural meteorological phenomena in the territory of Georgia. 104, Tbilisi, Georgia.
• Elizbarashvili, E.sh., Amiranashvili, А.G., Varazanashvili, O.Sh., Tsereteli, N.S., Elizbarashvili, M.E., Elizbarashvili, Sh.E. and Pipia, M.G. 2014. Hailstorms in the Territory of Georgia. European Geographical Studies, (2), 2, 55–69.
• Elizbarashvili, E., Elizbarashvili, M., Kartvelishvili, L., Pipia, M. and Elizbarashvili, Sh. 2018. Blizzard on the Territory of Georgia. European Geographical Studies, 5(1), 50–60.
• Varazanashvili, O., Tsereteli, N., Amiranashvili, A., Elizbarashvili, E. et al. 2012. Vulnerability, hazards and multiple risk assessment for Georgia. Natural Hazards, 64. 2021-2056.