INTERACTION OF CIRCULATION OBJECTS AND THEIR CLIMATE DYNAMICS BY THE EXAMPLE OF ATMOSPHERIC ACTION CENTERS IN THE NORTHERN HEMISPHERE

Abstract

The article deals with the centers of action of the atmosphere of the Northern Hemisphere - the Icelandic and Aleutian lows, the Azores and Hawaiian highs, the Arctic and winter Asian anticyclones. The change in their characteristics in the annual course is considered. As such characteristics, the geographical coordinates of each center of action and the pressure in its center are taken. It is noted that the most mobile is the Arctic anticyclone. The winter Asian anticyclone practically does not change its position from month to month. The Icelandic Low is more mobile than the Azores High. The displacements of the Aleutian cyclone and the Hawaiian anticyclone are commensurate with each other. The winter Asian anticyclone affects the intensity of the centers of action of the atmosphere in the North Atlantic and the North Pacific. Before the appearance of the Asian winter anticyclone, pressure changes in the centers of the Atlantic and Pacific AAC occur in concert. During the formation of the winter Asian anticyclone, a mismatch occurs in the course of pressure in these centers of action. The degree of influence of the winter Asian anticyclone on pressure fluctuations in the centers of baric formations was made by the method of dispersion analysis. The degree of influence of the winter Asian anticyclone on the course of pressure in the centers of action of the North Atlantic atmosphere is estimated at 87%, in the centers of action of the Pacific Ocean - at 71 %.