NDLI: Possible effect of solar activity on variation of the tree-rings of a 500 a platycladus orientalis at the Mausoleum of Emperor Huang

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Possible effect of solar activity on variation of the tree-rings of a 500 a platycladus orientalis at the Mausoleum of Emperor Huang

Content Provider	Springer Nature Link
Author	Feng, Bo Han, YanBen
Copyright Year	2009
Abstract	The variation of the tree-ring’s index of a platycladus orientalis at the Mausoleum of Emperor Huang and of a long series of sunspots relative number during AD1470–1974 are analyzed by using the wavelet power spectrum method, and their variation characters are also discussed. It is determined that the tree-ring’s variation has cycles of approximate 2–7, 11, 93 and 150 a. Two data series are used for analyzing sunspot relative number (SSN) variation. First, the analysis of the annual average SSN during AD1700–1974 proved that variation cycles are about 11, 50, and 93 a; then, the data during AD1465–1975 obtained from the decadal average SSN train over 7000 a reconstructed on the geomagnetic data is analyzed and its variation cycles are about 50, 90, and 160 a. Besides the tree-rings cycle of 2–7 a is commonly considered to be related to ENSO, while 11 a cycle is related to solar Schwabe cycle; in addition, it is possible that the cycles of 90 and150 a are likely to be related to solar Gleissberg cycle and Suess cycle. The correlations between them are possibly due to the effect of solar activity on the climate and additionally on the tree’s growth.
Starting Page	631
Ending Page	639
Page Count	9
File Format	PDF
ISSN	16721799
Journal	Science in China Series G
Volume Number	52
Issue Number	4
e-ISSN	18622844
Language	English
Publisher	SP Science in China Press
Publisher Date	2009-04-01
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	tree-ring solar activity climate change wavelet spectrum Astronomy Mechanics, Fluids, Thermodynamics Physics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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