气候变化领域集成服务门户(CCPortal): Temperature signals in tree-ring oxygen isotope series from the northern slope of the Himalaya

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DOI	10.1016/j.epsl.2018.11.002
	Temperature signals in tree-ring oxygen isotope series from the northern slope of the Himalaya
	Huang, Ru; Zhu, Haifeng; Liang, Eryuan; Griessinger, Jussi; Wernicke, Jakob; Yu, Wusheng; Hochreuther, Philipp; Risi, Camille; Zeng, Yijian; Fremme, Astrid; Sodemann, Harald; Braeuning, Achim
通讯作者	Zhu, HF (通讯作者)
发表日期	2019
ISSN	0012-821X
EISSN	1385-013X
起始页码	455
结束页码	465
卷号	506
英文摘要	Oxygen isotope ratios (delta O-18) are the most commonly used parameters recorded in paleoclimate archives since they link different natural archives via the water cycle. Tree-ring delta O-18 (delta O-18(TR)) has been widely used for hydroclimate reconstructions in the Himalaya. However, few of them record temperature signals, which are dominant in Himalaya ice-core delta O-18. We hypothesize that the precipitation amount effect due to the South Asian Summer Monsoon (SASM) may overprint temperature signals in delta O-18(TR) series. The purpose of this study is to investigate whether temperature signals could be found in the delta O-18(TR) in locations where the influence of SASM is weak. We developed a 105-yr delta O-18(TR) chronology from the northern slope of the western Himalaya which greatly blocks the SASM. Our delta O-18(TR) clearly shows stronger correlations with temperature (dominant winter and weak summer) than summer precipitation signals. It also agrees well with summer soil moisture delta O-18 simulated by the global isotope model LMDZ4 (r = 0.72, 1979-2010). In LMDZ4, low winter temperature was found to increase winter snowfall and subsequent snow melt, and thus to increase the contribution of winter snowfall to soil moisture in summer at the expense of summer precipitation. Since winter snowfall is more depleted than summer precipitation, this leads to lower summer soil moisture delta O-18. The temperature signals found in our delta O-18(TR) series are consistent with those found in the Dasuopu ice-core delta O-18. This implies that delta O-18(TR) series from the southwest Tibetan Plateau (TP), with a weak monsoon, hold great potential to capture temperature signals. Climate interpretations of delta O-18 proxies in the Himalaya largely depend on the influence of seasonal water from the dominant atmosphere circulation systems of the westerlies or monsoon. The delta O-18 proxies from the monsoon-affected region have a higher potential for the reconstruction of boreal summer hydroclimate, whereas delta O-18 proxies from westerly-affected sites have a higher potential for temperature reconstructions. (C) 2018 Elsevier B.V. All rights reserved.
关键词	SOUTHEASTERN TIBETAN PLATEAU REGIONAL PRECIPITATION MARITIME GLACIER STABLE-ISOTOPES ICE CORES DELTA-O-18 MOISTURE MONSOON RECORD MODEL
英文关键词	tree ring; oxygen isotope; Himalaya; ice core; South Asian Summer Monsoon; westerlies
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000455693800043
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259643
推荐引用方式 GB/T 7714	Huang, Ru,Zhu, Haifeng,Liang, Eryuan,et al. Temperature signals in tree-ring oxygen isotope series from the northern slope of the Himalaya[J]. 中国科学院青藏高原研究所,2019,506.
APA	Huang, Ru.,Zhu, Haifeng.,Liang, Eryuan.,Griessinger, Jussi.,Wernicke, Jakob.,...&Braeuning, Achim.(2019).Temperature signals in tree-ring oxygen isotope series from the northern slope of the Himalaya.EARTH AND PLANETARY SCIENCE LETTERS,506.
MLA	Huang, Ru,et al."Temperature signals in tree-ring oxygen isotope series from the northern slope of the Himalaya".EARTH AND PLANETARY SCIENCE LETTERS 506(2019).