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| Titel |
Winter temperature variations over the middle and lower reaches of the Yangtze River since 1736 AD |
| VerfasserIn |
Z.-X. Hao, J.-Y. Zheng, Q.-S. Ge, W.-C. Wang |
| 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 ; 8, no. 3 ; Nr. 8, no. 3 (2012-06-02), S.1023-1030 |
| Datensatznummer |
250005592
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| Publikation (Nr.) |
 copernicus.org/cp-8-1023-2012.pdf |
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| Zusammenfassung |
| We present statistically reconstructed mean annual winter
(December–February) temperatures from the middle and lower reaches of the
Yangtze River (24° N–34° N, 108° E–123° E within mainland China)
extending back to 1736. The reconstructions are based on information
regarding snowfall days from historical documents of the Yu-Xue-Fen-Cun
archive recorded during the Qing Dynasty (1644–1911). This information is
calibrated with regional winter temperature series spanning the period from
1951 to 2007. The gap from 1912 to 1950 is filled using early instrumental
observations. With the reference period of 1951–2007, the 18th century was
0.76 °C colder, and the 19th century was 1.18 °C colder. However,
since the 20th century, the climate has been in a warming phase,
particularly in the last 30 yr, and the mean temperature from 1981 to
2007 was 0.25 °C higher than that of the reference period of 1951–2007,
representing the highest temperatures of the past 300 yr. Uncertainty
existed for the period prior to 1900, and possible causes of this
uncertainty, such as physical processes involved in the interaction between
temperature and snowfall days and changing of observers, are discussed
herein. |
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