Physics
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.535..819d&link_type=abstract
In: Solar variability as an input to the Earth's environment. International Solar Cycle Studies (ISCS) Symposium, 23 - 28 June 2
Physics
Solar Dynamo Theory, Ozon
Scientific paper
There are some evidences that support the occurrence of total ozone content changes by high energetic particle flux intensity variations. In turn, these last are strongly linked to sudden commencement storms (SSC's). Therefore, an analysis of total ozone content in selected ground stations, radiative input and SSC index yearly means time series, the last defined as the product of the amplitude by the duration time of each storm, is performed. It is found that long-term ozone variations are mostly related to SSC index long-term variations in all the stations, with different behaviours that depend on geographical location. In particular, the strong decrease of total ozone content during cycle 22 is related to the very high SSC values that occurred during that sunspot cycle and is remarkably strong in Faraday and Halley Bay stations. In all the stations the minimum in total ozone content long term variation is reached around 1993 and is followed by an steady increase, that would continue along the forthcoming years following the descending chaotic transition that solar global magnetic field dynamo system started around 1993.
Duhau Silvia
Martínez Ernesto A.
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