Phase-coherent Oscillatory Modes in Solar and Geomagnetic Activity and Climate Variability

Autoři: RNDr. Milan Paluš, Dr. Sc.
Rok vydání: 2009
Typ publikace: Článek v odborném periodiku
Periodikum: Journal of Atmospheric and Solar-Terrestrial Physics
Projekty: Extraterestrické vlivy na atmosférickou cirkulaci v mírných a vysokých zeměpisných šířkách
Bibliografická citace: PALUŠ, Milan, NOVOTNÁ, Dagmar. Phase-coherent Oscillatory Modes in Solar and Geomagnetic Activity and Climate Variability. Journal of Atmospheric and Solar-Terrestrial Physics. 2009, 71(8-9), 923-930. ISSN 1364-6826. E-ISSN 1879-1824
Dostupné z: doi:10.1016/j.jastp.2009.03.012
DOI: 10.1016/j.jastp.2009.03.012
ID: 328412

Abstrakt

Oscillatory modes with the period of approximately 7–8 yr were detected in monthly time series of sunspot numbers, geomagnetic activity aa index, NAO (North Atlantic Oscillation) index and near-surface air temperature from several mid-latitude European locations. Instantaneous phases of the modes underwent synchronization analysis and their statistically significant phase coherence, beginning from 1950s, has been observed. Thus the statistical evidence for a coupling between solar/geomagnetic activity and climate variability has been obtained from continuous monthly data, independent of the season, however, confined to the temporal scale related to oscillatory periods about 7–8 yr.