Climatic and circulation factors of high natural fire intensity in Eastern Siberia and the Far East

Autor: Vladimir I. Mordvinov, Lyudmila V. Golubeva, Elena V. Devyatova, Inna V. Latysheva, Olga Yu. Antokhina, Vitali N. Kurdyukov
Rok vydání: 2019
Předmět:
Zdroj: 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics.
DOI: 10.1117/12.2538730
Popis: According to satellite monitoring data, the paper provides an analysis of the long-term dynamics of forest fires on the territory of five regions - the Irkutsk Region, the Republic of Buryatia, Transbaikalia, the Amur Region, and the Khabarovsk Territory. In the period 2004-2018, the changes in the area of forest fires (burned area) and the number of fires were. Climatic and circulation factors are considered as the causes of the forest fires. The key factors of high forest fire intensity are the processes of anticyclogenesis, which are developed with the strengthening of the meridional forms of atmospheric circulation in recent decades in Eastern Siberia. The high frequency of blocking anticyclones in the period May-June determines the long-term maintenance of the warm and dry air mass. In the long-term dynamics throughout the study area, there is an increase in temperature and a decrease in relative humidity.
Databáze: OpenAIRE