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| Titel |
Possible link between Holocene East Asian monsoon and solar activity obtained from the EMD method |
| VerfasserIn |
H. Y. Liu, Z. S. Lin, X. Z. Qi, Y. X. Li, M. T. Yu, H. Yang, J. Shen |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 19, no. 4 ; Nr. 19, no. 4 (2012-08-10), S.421-430 |
| Datensatznummer |
250014230
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| Publikation (Nr.) |
 copernicus.org/npg-19-421-2012.pdf |
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| Zusammenfassung |
| It is thought that East Asian monsoon (EAM) is linked and
sensitive to solar activity. In this paper, we have decomposed the Dongge
cave speleothem δ18O record (proxy for EAM), and Δ14C
and 10Be (proxies for solar activity) time series into
variations at different time scales with the empirical mode decomposition
(EMD) method to reveal the possible link between the EAM variability and
solar activity. There are some common cycles in the EAM and solar
variability from centennial to millennial scales, indicating a possible link
between EAM and solar activity at these time scales. The correlation between
EAM and solar activity is much higher at millennial scales than at
centennial scales, which means direct responses to the solar variation are
more likely at time scales longer than a few hundred years. At
~30, 60 and 600 yr time scales, the variation in EAM is
amplified by the solar amplitude modulation at ~100, 200 and
2200 yr time scales. |
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