Abstract

We studied long-term variability of the solar wind dynamic pressure (Psw) for the period of satellite observations from 1960 to 1996. The solar wind dynamic pressure is a crucial parameter determining the position of the magnetopause relative to the Earth. The latter parameter is thought to be an indicator of the amount of energy transferred from the solar wind to the near-Earth space. Therefore, we explored the connection between the solar wind dynamic pressure variations and some climatic characteristics such as the middle atmosphere thermal regime and the sea ice cover area. Unexpectedly high degree of correlation has been found between these parameters. We consider it as an evidence of the direct impact of the solar wind dynamics on the Earth's climate characteristics. Preliminary discussion of the probable physical mechanism responsible for these connections is made.

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