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| Titel |
Temperature changes over the past 2000 yr in China and comparison with the Northern Hemisphere |
| VerfasserIn |
Q. Ge, Z. Hao, J. Zheng, X. Shao |
| 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 ; 9, no. 3 ; Nr. 9, no. 3 (2013-05-27), S.1153-1160 |
| Datensatznummer |
250018058
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| Publikation (Nr.) |
 copernicus.org/cp-9-1153-2013.pdf |
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| Zusammenfassung |
| We use principal component regression and partial least squares regression
to separately reconstruct a composite series of temperature variations in
China, and associated uncertainties, at a decadal resolution over the past
2000 yr. The reconstruction is developed using proxy temperature data
with relatively high confidence levels from five regions across China, and
using a temperature series from observations by the Chinese Meteorological
Administration, covering the period from 1871 to 2000. Relative to the
1851–1950 climatology, our two reconstructions show four warm intervals
during AD 1–AD 200, AD 551–AD 760, AD 951–AD 1320, and after AD 1921, and
four cold intervals during AD 201–AD 350, AD 441–AD 530, AD 781–AD 950,
and AD 1321–AD 1920. The temperatures during AD 981–AD 1100 and
AD 1201–AD 1270 are comparable to those of the Present Warm Period, but have
an uncertainty of ±0.28 °C to ±0.42 °C at
the 95% confidence interval. Temperature variations over China are
typically in phase with those of the Northern Hemisphere (NH) after 1000, a
period which covers the Medieval Climate Anomaly, the Little Ice Age, and
the Present Warm Period. In contrast, a warm period in China during AD 541–AD 740
is not obviously seen in the NH. |
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