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Climate signature of solar irradiance variations: analysis of long-term instrumental, historical and proxy data

Domenii publicaţii > Ştiinţele pământului şi planetare + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Lohmann, G., N. Rimbu, and M. Dima

Editorial: International Journal of Climatology, 24, 2004.


The signature of solar irradiance variations on decadal-to-centennial climate variability is analysed by means of statistical analysis of long-term instrumental, historical and proxy data sets. Solar variations associated with the Schwabe, Hale and Gleissberg cycles are detected by their spatial patterns in sea-surface temperature and sea-level pressure. Different statistical methods for instrumental and proxy data show that the mode related to solar irradiance fluctuations on multi-decadal time scales (Gleissberg cycle) is distinct from the Atlantic multi-decadal mode associated with ocean circulation changes. From this, one can infer the degree to which solar variability has contributed to long-term temperature variations during the instrumental and pre-instrumental era.

Cuvinte cheie: solar forcing, internal variability, statistical analysis