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Radio Physics and Radio Astronomy

Published 4 issues per year

ISSN Print: 2152-274X

ISSN Online: 2152-2758

OZONOSPHERE AS A SHIELD OF THE TROPOSPHERE-TO-IONOSPHERE ENERGY TRANSFER

Volume 1, Issue 3, 2010, pp. 189-196
DOI: 10.1615/RadioPhysicsRadioAstronomy.v1.i3.20
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ABSTRACT

The impact of the ozone layer over the Antarctic Peninsula on the statistical correlation between the tropospheric weather and ionospheric spread-F phenomenon is investigated. The data obtained at the Akademik Vernadsky Station from 1995 through 2004 on the days of the ozone hole development (from 11 September till 5 October) are used. It has been found that under low ozone conditions (less than 180 D. U.) the conditional probability of the spread-F appearance is greater in the presence of atmospheric fronts than when they are absent. Under high ozone conditions (more than 180 D. U.), statistical relationship between the frontal activity and spread-F phenomenon disappears, i. e. the ozone layer becomes a kind of a shield for the troposphere-toionosphere energy transfer. Apparently, a reason for this is increasing of the stratospheric temperature and vertical temperature gradients of the middle atmosphere at higher ozone amount, which effect makes poorer conditions for atmospheric gravity wave propagation.

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