Ice core records of climate variability on the Third Pole with emphasis on the Guliya ice cap, western Kunlun Mountains

QUATERNARY SCIENCE REVIEWS

卷:188

Review

Thompson, Lonnie G.^1,2  Yao, Tandong³  Davis, Mary E.¹  Mosley-Thompson, Ellen^1,4  Wu, Guangjian³  Porter, Stacy E.¹  Xu, Baiqing³  Lin, Ping-Nan¹  Wang, Ninglian⁵  Beaudon, Emilie¹  Duan, Keqin⁶  Sierra-Hernandez, M. Roxana¹  Kenny, Donald V.¹ 

[1] Ohio State Univ, Byrd Polar & Climate Res Ctr, 1090 Carmack Rd, Columbus, OH 43210 USA

[2] Ohio State Univ, Sch Earth Sci, Columbus, OH 43210 USA

[3] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Climate Changes & Land Surface Pr, Beijing, Peoples R China

[4] Ohio State Univ, Dept Geog, Columbus, OH 43210 USA

[5] Northwest Univ, Coll Urban & Environm Sci, Xian, Shaanxi, Peoples R China

[6] Shaanxi Normal Univ, Coll Tourism & Environm Sci, Xian, Shaanxi, Peoples R China

关键词: Ice cores;    Present;    Paleoclimatology;    China;    Monsoon;    Stable isotopes;    North Atlantic;    Glaciology;   

DOI  :  10.1016/j.quascirev.2018.03.003

来源: Elsevier

【 摘 要 】

Records of recent climate from ice cores drilled in 2015 on the Guliya ice cap in the western Kunlun Mountains of the Tibetan Plateau, which with the Himalaya comprises the Third Pole (TP), demonstrate that this region has become warmer and moister since at least the middle of the 19th century. Decadalscale linkages are suggested between ice core temperature and snowfall proxies, North Atlantic oceanic and atmospheric processes, Arctic temperatures, and Indian summer monsoon intensity. Correlations between annual-scale oxygen isotopic ratios (delta O-18) and tropical western Pacific and Indian Ocean sea surface temperatures are also demonstrated. Comparisons of climate records during the last millennium from ice cores acquired throughout the TP illustrate centennial-scale differences between monsoon and westerlies dominated regions. Among these records, Guliya shows the highest rate of warming since the end of the Little Ice Age, but delta O-18 data over the last millennium from TP ice cores support findings that elevation-dependent warming is most pronounced in the Himalaya. This, along with the decreasing precipitation rates in the Himalaya region, is having detrimental effects on the cryosphere. Although satellite monitoring of glaciers on the TP indicates changes in surface area, only a few have been directly monitored for mass balance and ablation from the surface. This type of ground-based study is essential to obtain a better understanding of the rate of ice shrinkage on the TP. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

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