AbstractThe wintertime distribution of total ozone over middle latitudes of the Northern Hemisphere is strongly longitudinally asymmetric, which is not the case in summer with much weaker longitudinal asymmetry. As a consequence of that, the effect of geomagnetic storms on total ozone can be observed only in winter, when it looks like re-distribution of ozone resulting in substantial diminishing of longitudinal asymmetry. The storm effect is substantial under specific conditions in some regions but not globally, and it does not appear as a detectable effect in zonal mean values of total ozone, as it is shown for latitude 50°N. The effects of Forbush decreases of the cosmic ray flux on total ozone provide a similar pattern. Both effects seem to be related to changes in atmospheric dynamics, thus being rather indirect. The geomagnetic storm effects in the surface pressure field provide a similar spatial pattern, as well. The strong non-zonality of effects of geomagnetic storms and Forbush decreases on total ozone and absence of such effects in zonal mean values stresses the necessity to avoid the zonal mean values in studies of impacts of extraterrestrial processes and phenomena on total ozone and the middle atmosphere.


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    Title :

    Non-zonality of ozone response to geomagnetic storms and forbush decreases of cosmic rays


    Contributors:

    Published in:

    Advances in Space Research ; 32 , 9 ; 1793-1802


    Publication date :

    2002-12-16


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Non-Zonality of Ozone Response to Geomagnetic Storms and Forbush Decreases of Cosmic Rays

    Lastovicka, J. / International Council of Scientific Unions | British Library Conference Proceedings | 2003




    Effect of Forbush Decreases of Cosmic Ray Flux on Ozone at Higher Middle Latitudes

    Fedulina, I. / Lastovicka, J. / Committee on Space Research | British Library Conference Proceedings | 2001