Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....6.3519t&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
It is shown that cosmic rays (CR) can influence the aggregate transitions of water in free atmosphere through the air ionization and then so that influence the changes of atmospheric parameters. In this case the value of effect over diffirent regions can differ by a factor of 2-3 times (in Moscow it is ≈ 6 mb, in Yakutsk ≈ 1,5 mb, in Apatity ≈ 3 mb The water at the atmosphere represents in the form of three components: a) in the form of separate molecules; b) in the form of clusters and compounds representing the heteronuclear particles and microscopic aerosols (many of them can serve as nuclei of condensation and sublimation of the water steam and also influence the passing of radiant energy of the Sun). Small uncharged water drops can't exist in the free atmosphere [1]. As a result of these processes the portion of the water consisting in the atmosphere in the form of isolated molecules will change in sufficiently wide ranges which will lead to the changes of the ground pressure. For the noticeable effect from the release of latent energy on vast territories of the planet the times several days are required. So in order to study the action of cosmic rays on the ground pressure at latitudes significantly remote from the auroral zone but at which the Forbush-effects are noticeably manifested, two points of Moscow and Yakutsk have been chosen. They are essentially remote in longitude but they are within the middle latitudes. For comparison such a point has been taken near the auroral zone, it is Apatity. The duration of "response" in the ground pressure from cosmic rays is expected in the interval of ≈ 5÷27 days. Fig.1 presents the temporal change of the ground pressure in Moscow from January 1, 1988 to December 31, 1997. The first day is taken for the unit. From Fig.1 (the upper graph) it is seen that the largest fluctuations of the ground pressure in Moscow are in the interval up to ≈ 5 days and in the seasonal change. If we suppose that the expected effect amplitude is ≈ 1 mb then as sun from this plot, the fluctuations with periods less than 5 days are greater by a factor of 10, approximately, and a seasonal change is greater by a factor of 20 than the expected effect. It is better seen on the lower plot of Fig.1 which
Grigoryev V. G.
Samsonov S. N.
Skryabin N. G.
Timofeev V. E.
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