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Early summer temperature reconstruction in the eastern Tibetan plateau since ad 1440 using tree-ring width of Sabina tibetica |
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| Authors: | Hai-Feng Zhu Xue-Mei Shao Zhi-Yong Yin Lei Huang |
| Institution: | 1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100085, China 2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China 3. Department of Marine Science and Environmental Studies, University of San Diego, San Diego, CA, 92110, USA 4. National Climate Center, Beijing, 100081, China |
| Abstract: | Long climate records are scarce on the Tibetan Plateau for understanding the climate variability on long-term context. Here we presented an early summer (May?CJune) temperature reconstruction since ad 1440 for Qamdo area using tree rings of Sabina tibetica. The reconstruction accounted for 64% of the variance in the instrumental record. It showed warm periods during 1501?C1514, 1528?C1538, 1598?C1609, 1624?C1636, 1650?C1668, 1695?C1705, 1752?C1762, 1794?C1804, 1878?C1890, 1909?C1921, 1938?C1949, and 1979?C1991. Cool early summer occurred during 1440?C1454, 1482?C1500, 1515?C1527, 1576?C1597, 1610?C1621, 1669?C1679, 1706?C1716, 1782?C1793, 1863?C1873, 1894?C1908, and 1922?C1937. Comparison with other proxy or meteorological records suggested that there is obvious spatial variability in the May?CJune temperature variations along the eastern margin of the Tibetan Plateau. |
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