Effects of the solar activity on the modes of atmospheric variability in the Southern Hemisphere

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F13%3A00426808" target="_blank" >RIV/68378289:_____/13:00426808 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effects of the solar activity on the modes of atmospheric variability in the Southern Hemisphere
Original language description
We analyze effects of the variations of solar activity on mid-tropospheric circulation of the Southern Hemisphere in terms of modes of low-frequency variability. The modes are detected by principal component analysis orthogonally rotated) in an S-mode. The analyzed domain is the Southern Hemisphere extratropics south of 20°S (inclusive); the circulation is characterized by 500 hPa heights; the analyzed period is 1950-2011. Separate analyses are conducted for individual seasons, that is, winter (JJA), spring (SON), summer (DJF), and autumn (MAM). Solar activity is described by Wolf sunspot numbers. Monthly mean values of both circulation and solar variables enter the analysis. The modes are detected separately for the months with a low and high solar activity, and differences between the spatial patterns of the modes (principal component loadings) are tested for statistical significance. All the modes detected exhibit variations in their spatial extent, position of action centers, and i
Czech name
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Czech description
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Project
<a href="/en/project/7AMB12AR019" target="_blank" >7AMB12AR019: Effects of solar variability on the atmospheric circulation in the Southern Hemisphere and the South American climate on interannual to millenial timescales</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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