Abstract
The Earth’s crossings of the magnetic sector boundaries are accompanied by changes in the magnetosphere, ionosphere, and troposphere. We considered the baric field’s response to the crossing of the inter-planetary magnetic field (IMF) sector boundaries during a geomagnetically quiet period. The IMF sign is shown to affect atmospheric pressure in high-latitude regions. The efficiency and sign of the relationship vary during the year. The baric field response to the Earth’s crossing of the IMF sector boundaries is most distinct during equinoxes. It is shown that, during a geomagnetically quiet period, the circulation processes in the atmosphere drive the changes in the atmospheric pressure when the Earth passes from one IMF sector into another.
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Original Russian Text © A.A. Karakhanyan, G.A. Zherebtsov, V.A. Kovalenko, S.I. Molodykh, 2011, published in Solnechno-Zemnaya Fizika, 2011, Vol. 18, pp. 42–45.
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Karakhanyan, A.A., Zherebtsov, G.A., Kovalenko, V.A. et al. Role of atmospheric circulation in the baric field response to the Earth’s crossing of the interplanetary magnetic field sector boundaries. Geomagn. Aeron. 51, 1155–1159 (2011). https://doi.org/10.1134/S0016793211080214
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DOI: https://doi.org/10.1134/S0016793211080214