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Titel |
Tree ring-based February–April temperature reconstruction for Changbai Mountain in Northeast China and its implication for East Asian winter monsoon |
VerfasserIn |
H. F. Zhu, X. Q. Fang, X. M. Shao, Z. Y. Yin |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1814-9324
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Digitales Dokument |
URL |
Erschienen |
In: Climate of the Past ; 5, no. 4 ; Nr. 5, no. 4 (2009-10-30), S.661-666 |
Datensatznummer |
250002695
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Publikation (Nr.) |
copernicus.org/cp-5-661-2009.pdf |
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Zusammenfassung |
Long-term climatic records are scarce in the northeast Asia for understanding
the behavior of the East Asian Winter Monsoon. Here we describe a 250-year
February–April temperature reconstruction (TCBM) based on tree-ring widths
of Korean Pines from the Changbai Mountain area, Northeast China. The
reconstruction can account for 45.7% of the temperature variance in the
instrumental period (1953 to 2001). Four cold periods including 1784–1815,
1827–1851, 1878–1889 and 1911–1945, and two warm periods of 1750–1783 and
1855–1877 were identified before the instrumental period. Four shifts were
also detected at 1781, 1857, 1878 and 1989. Good agreements between TCBM and
other temperature records of East Asia suggest that the reconstruction is of
good reliability and captures the regional cold/warm periods of East Asia.
Moreover, TCBM shows negative correlations with the instrumental or
proxy-based EAWM intensity records. The known weakening of the EAWM in the
late 1980s is in agreement with the shift at 1989 in TCBM. These comparisons
suggest that the February–April temperature reconstruction may be a good
indicator of the EAWM intensity. |
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