Climate variation since the Last Interglaciation recorded in the Guliya ice core |
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| Authors: | Tandong Yao L G Thompson Yafeng Shi Dahe Qin Keqin Jiao Zhihong Yang Lide Tian E M Thompson |
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| Institution: | (1) Lanzhou Institute of Glaciology and Geocryology, Chinese Academy of Sciences, 730000 Lanzhou, China;(2) Byrd Polar Research Center, Ohio State University, 43210 Columbus, OH, USA |
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| Abstract: | The climatic and environmental variations since the Last Interglaciation are reconstructed based on the study of the upper
268 m of the 309-m-long Guliya ice core. Five stages can be distinguished since the Last Interglaciation from the δ18O record in the Guliya ice core: Stage 1 (Deglaciation), Stage2 (the Last Glacial Maximum), Stage 3 (interstadial), Stage
4 (interstadial in the early glacial maximum) and Stage 5 (the Last Interglaciation). Stage 5 can be divided further into
5 substages; a, b, c, d, e. The δ18O record in the Guliya ice core indicates clearly the close correlation between the temperature variation on the Tibetan Plateau
and the solar activities. The study indicates that the solar activity is a main forcing to the climatic variation on the Tibetan
Plateau. Through a comparison of the ice core record in Guliya with that in the Greenland and the Antarctic, it can be found
that the variation of large temperature variation events in different parts of the world is generally the same, but the variation
amplitude of temperature is different.
Project supported by thc Climbing Program of the State Eighth Five-Year Plan and the National Natural Science Foundation of
China. |
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| Keywords: | climate variation Last Interglaciation Guliya ice core |
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