Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jastp..70.1012r&link_type=abstract
Journal of Atmospheric and Solar-Terrestrial Physics, vol. 70, issue 7, pp. 1012-1024
Physics
1
Solar-Terrestrial Relationships, Solar Activity, Oxygen-18 Time Series, Spectral Analysis, Multi-Resolution Analysis
Scientific paper
This work presents a study of the relations between solar and climate variations during the last millennia by spectral and multi-resolution analysis for oxygen-18 and tree ring width time series. The spectral and wavelet analysis of tree ring data shows that main solar cycle periodicities are present in our time series at the 0.95 confidence level. This result suggests the possibility of a solar modulation of climate variations detected in accumulated ice oxygen-18. Results of spectral and wavelet analysis have shown that both solar and climate factors are also recorded in the oxygen-18 data.
Echer Ezequiel
Evangelista da Silva Heitor
Jean Roger Nordemann Daniel
Pereira de Souza Echer Mariza
Prestes Alan
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