Physics
Scientific paper
May 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003jastp..65..947t&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, Volume 65, Issue 8, p. 947-956.
Physics
7
Scientific paper
Detailed analysis of meteorological and aerological data from Vostok station (Antarctica) for 1978-1992 made it possible to conclude that dramatic changes of the troposphere temperature, observed in the southern polar region, are related to the variations of the interplanetary magnetic field (IMF). The warming is observed at ground level and cooling at h>10km if the IMF vertical component decreases (ΔBZ<0). The opposite deviation of the atmospheric temperatures (cooling at the ground level and warming at h>10km) is observed for ΔBZ>0. There is a linear relationship between the value of change in the interplanetary electric field (ΔESW) and ground temperature at Vostok station: the larger is the leap in the ESW the stronger is the temperature deviation. The effect reaches maximum within 1 day and is damped equally quickly. The tropospheric pressure and horizontal winds respond to the ESW fluctuations as well. It is suggested that the interplanetary electric field affects the katabatic system of atmospheric circulation typical of the ice dome in winter Antarctic.
Egorova L. V.
Troshichev Oleg A.
Vovk Ya. V.
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