气候变化领域集成服务门户(CCPortal): Interannual Variation in Stable Isotopes in Water Vapor Over the Northern Tibetan Plateau Linked to ENSO

CCPortal

DOI	10.1029/2021GL092708
	Interannual Variation in Stable Isotopes in Water Vapor Over the Northern Tibetan Plateau Linked to ENSO
	Jing, Zhaowei; Yu, Wusheng; Schneider, Andreas; Borsdorff, Tobias; Landgraf, Jochen; Lewis, Stephen; Zhang, Jingyi; Tang, Wenjun; Ma, Yaoming; Xu, Baiqing; Qu, Dongmei
通讯作者	Yu, WS (通讯作者)
发表日期	2021
ISSN	0094-8276
EISSN	1944-8007
卷号	48 期号:8
英文摘要	The contrasting responses of ice core delta O-18 records (delta O-18(ice)) from the northern and southern Tibetan Plateau (TP) to the El Nino Southern Oscillation (ENSO) complicate delta O-18(ice)-based temperature reconstructions. These contrasting responses were explored using stable hydrogen isotopes in water vapor (delta D-v). We found that the interannual variation in delta D-v from the northern TP is influenced by midtropospheric moisture sources from the Indo-Pacific Warm Pool, with enriched (depleted) delta D-v values in La Nina (El Nino) years due to enhanced (weakened) deep convection. In comparison, the interannual delta D-v variation in the southern TP is mainly influenced by low-tropospheric moisture from the central Indian Continent, whose delta D-v is depleted (enriched) in La Nina (El Nino) years. These results demonstrate that moisture transported from different altitudes can lead to opposite isotopic signals of water vapor over the northern and southern TP and can be used to reconcile the contrasting responses of delta O-18(ice) to ENSO. Plain Language Summary The seasonal and interannual variations in stable hydrogen isotopes in water vapor (delta D-v) over the northern Tibetan Plateau (TP) are analyzed using satellite retrievals and model simulations. While seasonal variations in delta D-v from the northern TP are highly correlated with local temperature, the interannual variation in delta D-v is weakly related to local temperature but is significantly and positively correlated with the Southern Oscillation Index (SOI). Moreover, the positive correlation between the delta D-v and the SOI is in direct contrast with results from the southern TP. Our results indicate that reconstructed temperatures based on ice core delta O-18 records are biased higher (lower) in the northern (southern) TP when the tropical Pacific is in a La Nina phase, and vice versa when the tropical Pacific is in an El Nino phase. Hence, we suggest that the ENSO-related isotopic signals should be removed to constrain the uncertainty of temperature reconstruction in the TP.
关键词	MISSION DATA SET ICE-CORE DELTA-O-18 RECORDS ASIAN MONSOON PRECIPITATION CONVECTION SCIAMACHY ISOTOPOLOGUES TEMPERATURE CIRCULATION
英文关键词	ENSO; Indo-Pacific warm pool; stable isotopes; Tibetan Plateau; water vapor
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000672324900091
来源期刊	GEOPHYSICAL RESEARCH 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/260264
推荐引用方式 GB/T 7714	Jing, Zhaowei,Yu, Wusheng,Schneider, Andreas,et al. Interannual Variation in Stable Isotopes in Water Vapor Over the Northern Tibetan Plateau Linked to ENSO[J]. 中国科学院青藏高原研究所,2021,48(8).
APA	Jing, Zhaowei.,Yu, Wusheng.,Schneider, Andreas.,Borsdorff, Tobias.,Landgraf, Jochen.,...&Qu, Dongmei.(2021).Interannual Variation in Stable Isotopes in Water Vapor Over the Northern Tibetan Plateau Linked to ENSO.GEOPHYSICAL RESEARCH LETTERS,48(8).
MLA	Jing, Zhaowei,et al."Interannual Variation in Stable Isotopes in Water Vapor Over the Northern Tibetan Plateau Linked to ENSO".GEOPHYSICAL RESEARCH LETTERS 48.8(2021).