Vol. 19, issue 10, article # 10
pdf Zuev V. V. Interrelation between climate warming in Siberia in the XX century and the activity of tropical volcanoes. // Atmospheric and oceanic optics. 2006. V. 19. No. 10. P. 798-803.Copy the reference to clipboard
Abstract:
The paper presents analysis of the interrelation between climate warming in Siberia in the first and last decades of the twentieth century with the activity of explosive tropical volcanoes, capable of ejecting the eruption products to the stratosphere. It is shown that strong perturbation of wave activity of atmospheric circulation happened in the period of a series of frequent volcanic explosions from 1963 to 1991, caused an intensification of the North Atlantic oscillations (Azores High and Icelandic Low) accompanied by weakening of the Siberian anticyclone. In the representation of atmospheric activity centers by large-scale vortices, I consider a mechanism that can yield an intense blowing of Siberian regions in winter by warm Atlantic air leading to a significant warming of regional climate. Analysis of long-term chronologies of the North Atlantic oscillations (NAO), the values of the global stratospheric optical depth, and the chronicle of explosive eruptions of volcanoes for over 130-year period has shown that the climate warming in Siberia in the first and last decades of the twentieth century has same nature, with the activity of tropical volcanoes being the common background.