Summer temperature reconstruction on the central Tibetan Plateau during 1860–2002 derived from annually resolved ice core pollen
Summer temperature reconstruction on the central Tibetan Plateau during 1860–2002 derived from annually resolved ice core pollen
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根据每年解析的冰芯花粉重建青藏高原中部 1860 年至 2002 年夏季气温
DOI：
10.1029/2008jd010142
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发表时间：
2008-12
影响因子：
--
通讯作者：
Achim Bräuning
中科院分区：
文献类型：
--
作者：
Mary E. Davis;Liu Jingjing;Lingyu Tang;Yang Bao;Jajun Shao;Achim Bräuning
我们提供了青藏高原中部普若岗日冰场140年的冰芯孢粉记录和年时间分辨率。草原和草甸花粉与那曲夏季气温之和的线性回归模型可解释1955-2002年夏季气温变化的66%。在此模型的基础上，我们重建了青藏高原中部1860-2002年的夏季气温历史。确定了19世纪70年代、19世纪90年代和90年代的三个显著暖期和19世纪60年代、19世纪80年代、20世纪50年代和1960-70年代的五个冷期。在过去的100年里，20世纪末的气候变暖是独特的，可能对目前青藏高原上大多数冰川的消退起到了重要作用。花粉记录还与整个青藏高原的年平均温度显著相关，表明这些替代数据具有反映大范围区域温度变化的潜力。普罗岗里冰芯孢粉记录与δ18O时间序列在统计上的显著相似性表明，两者都是该地区年至多年时间尺度上温度变化的可靠指标。
We present a 140‐year ice core pollen record with annual time resolution from the Puruogangri ice field in the central Tibetan Plateau. A linear regression model between the sum of the steppe and meadow pollen taxa and summer temperature at Naqu accounts for 66% of the summer temperature variance for the period 1955–2002. On the basis of this model, we reconstructed summer temperature history for the central Tibetan Plateau from 1860 to 2002. Three marked warm periods during the 1870s, 1890s, and 1990s and five cold periods during the 1860s, 1880s, 1900s, 1950s, and 1960–1970s were identified. Within the last 100 years, late 20th century warming is distinctive and may have had a major role in the present retreat of most glaciers on the Tibetan Plateau. The pollen record is also significantly correlated with average annual temperatures over the whole Tibetan Plateau, suggesting that these proxy data have the potential for reflecting large‐scale regional temperature change. The statistically significant similarity between the Puruogangri ice core pollen record and theδ18O time series indicates that both are reliable indicators of temperature change at annual to multiyear timescales in this region.
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影响因子：
2.2
作者：
J. Bourgeois
通讯作者：
J. Bourgeois
影响因子：
--
作者：
R. Pirazzini;P. Räisänen
通讯作者：
R. Pirazzini;P. Räisänen
影响因子：
5.8
作者：
Daniel C. Pope;S. Willett
通讯作者：
Daniel C. Pope;S. Willett
影响因子：
4.4
作者：
Brown, J;Simmonds, I;Noone, D
通讯作者：
Noone, D
DOI：
--
发表时间：
1984
期刊：
Progress in botany
影响因子：
--
作者：
Burkhard Frenzel
通讯作者：
Burkhard Frenzel