Numerical investigation of the air possible pollution in case of large hypothetical accidents in some industrial territories of the Caucasus

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Avtandil A. Kordzadze
Aleksandre A. Surmava
Vepkhia G. Kukhalashvili

Abstract

The distribution of  anthropogenic passive and radioactive pollutions emitted in the atmosphere in the industrial centers of the Caucasus are investigated by means of a regional model of development of atmospheric processes in the Caucasian Region and the equation of  substance displacements. The distribution of pollution is simulated in cases for the four basis synoptic situations, when the   south, east, west and south-east background large scale winds blow.

It is shown, that the relief of the Caucasus significantly influences the trajectory of the pollution displacements.  The north-west oriented  Main Caucasian Range resists air motion to the north, constrains the pollution substance in the boundary layer to flow around the Main Caucasian Range from the west or east sides. The Likhi Range resists the distribution of the pollution emitted in atmosphere in the vicinity of t. Poti and causes its displacement to the south. It is obtained that 48 hours are mainly necessary for the pollution cloud to overflow the South Caucasus and distribute over the territory of the North Caucasus.

The radioactive pollute can fall out mainly in the central, southeast and northwest parts of the South Caucasus. The zone of the radioactive deposition is extended along the background wind and deformed by the influence of the relief. The maximal length of the zone of a significant deposition of radioactive substance equals approximately 750 km in case of the background south-east wind and 350 km in other cases. The maximum width of this zone approximately equals 150 km.

Published: Aug 11, 2014

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How to Cite
Kordzadze, A. A., Surmava, A. A., & Kukhalashvili, V. G. (2014). Numerical investigation of the air possible pollution in case of large hypothetical accidents in some industrial territories of the Caucasus. Journals of Georgian Geophysical Society, 16, 13–23. Retrieved from https://ggs.openjournals.ge/index.php/GGS/article/view/658
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