The 11-year solar cycle affects the intensity and annularity of the Arctic Oscillation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F07%3A00085305" target="_blank" >RIV/68378289:_____/07:00085305 - isvavai.cz</a>
Alternative codes found
RIV/67985530:_____/07:00085305
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
The 11-year solar cycle affects the intensity and annularity of the Arctic Oscillation
Original language description
We investigate the dependence of the Arctic Oscillation (AO) in winter on the solar activity by stratifying the data into overlapping intervals defined by percentiles of the 10.7 cm radio flux. The AO exhibits a complex dependence of its polarity, beingweakest under low, but not minimum, solar activity, while strongest in solar maxima. The AO is more/less variable (i.e., more/less active) under a high/low solar activity. Under a moderate solar activity, its Pacific centre weakens and eventually disappears. These effects seem to be real in spite of a potential for mixing the AO with the second principal component due to sampling errors caused by insufficient spacing between the first two eigenvalues. The weakening of the Pacific centre is not a resultof coincidence with major volcanic eruptions or specific phases of the El Nino-Southern Oscillation.
Czech name
11-letý sluneční cyklus ovlivňuje intenzitu a kruhovitost arktické oscilace
Czech description
Byla zkoumána závislost arktické oscilace v zimě na solární aktivitě.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DG - Atmospheric sciences, meteorology
OECD FORD branch
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Project
<a href="/en/project/IAA3042401" target="_blank" >IAA3042401: Solar and geomagnetic effects on the Northern Hemisphere tropospheric circulation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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