Physics
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ncimc..20..951c&link_type=abstract
Nuovo Cimento C, Vol. 20C, N. 6, p. 951 - 954
Physics
Solar-Terrestrial Relations: Solar Activity Cycles
Scientific paper
The authors measured the thermoluminescence (TL) depth profile of the GT89/3 shallow-water Ionian Sea core. This profile has been transformed into a time series using the accurate sedimentation rate previously determined by radiometric and tephroanalysis methods. The TL measurements were performed in samples of equal thickness of 2 mm, corresponding to a time interval of 3.096 y. The TL time series spans 1800 y. The DFT power spectral densities in the decadal periodicity range of this TL series show significant periodicities at 10.7, 11.3 and 12 y closely similar to the periodicities present in the sunspot number series. These results confirm that the TL signal in recent sea sediments faithfully records the solar variability, as the authors previously proposed.
Bonino Gianfranco
Castagnoli Cini G.
Taricco Carla
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