气候变化领域集成服务门户(CCPortal): Coupled Effects of Moisture Transport Pathway and Convection on Stable Isotopes in Precipitation across the East Asian Monsoon Region: Implications for Paleoclimate Reconstruction

CCPortal

DOI	10.1175/JCLI-D-21-0271.1
	Coupled Effects of Moisture Transport Pathway and Convection on Stable Isotopes in Precipitation across the East Asian Monsoon Region: Implications for Paleoclimate Reconstruction
	Zhang, Jingyi; Yu, Wusheng; Jing, Zhaowei; Lewis, Stephen; Xu, Baiqing; Ma, Yaoming; Wei, Feili; Luo, Lun; Qu, Dongmei
通讯作者	Yu, WS (通讯作者)
发表日期	2021
ISSN	0894-8755
EISSN	1520-0442
起始页码	9811
结束页码	9822
卷号	34 期号:24
英文摘要	This study investigated the variations in stable oxygen isotopes in daily precipitation (delta O-18(p)) collected between 2010 and 2013 at four sites across the East Asian monsoon region to address the controversy whether local meteorological factors, moisture transport pathway, or convection dominates the delta O-18(p) changes. We found that the delta O-18(p) time series exhibit opposite seasonal patterns between the southern and northern sites; however, relatively low delta O-18(p) values occur at each site during summer. The opposite seasonal patterns are closely related to the proportional change in the contributions from oceanic (>52% in the south) and continental (>85% in the north) moisture sources. Moisture transport distances also influence the seasonal delta O-18(p) fluctuations. In the south, the moisture transported over short distances from the middle of the western Pacific Ocean results in relatively high delta O-18(p) values during the premonsoon season. In contrast, long-distance transport of moisture from the Indian and equatorial Pacific Oceans during the monsoon season results in relatively low delta(18)O(p )values. In the north, relatively low delta O-18(p) values during the monsoon season can be attributed to an increase in relatively distant moisture originating from the middle of the western Pacific Ocean. Convection only plays a role in affecting delta O-18(p) values in the south during the monsoon season. Our study suggests that moisture transport pathway (moisture sources and moisture transport distances) is a major factor that governs seasonal variations in delta O-18(p) across the East Asian monsoon region, which has implications for the interpretation of paleoclimate records from this region.
关键词	SUMMER MONSOON ATMOSPHERIC CONTROLS OXYGEN-ISOTOPE SOUTH SEASONALITY RAINOUT RECORDS CHINA INDIA TEMPERATURE
英文关键词	Isotopic analysis; Asia; Atmospheric circulation; Convection
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000752652100014
来源期刊	JOURNAL OF CLIMATE
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/260312
推荐引用方式 GB/T 7714	Zhang, Jingyi,Yu, Wusheng,Jing, Zhaowei,et al. Coupled Effects of Moisture Transport Pathway and Convection on Stable Isotopes in Precipitation across the East Asian Monsoon Region: Implications for Paleoclimate Reconstruction[J]. 中国科学院青藏高原研究所,2021,34(24).
APA	Zhang, Jingyi.,Yu, Wusheng.,Jing, Zhaowei.,Lewis, Stephen.,Xu, Baiqing.,...&Qu, Dongmei.(2021).Coupled Effects of Moisture Transport Pathway and Convection on Stable Isotopes in Precipitation across the East Asian Monsoon Region: Implications for Paleoclimate Reconstruction.JOURNAL OF CLIMATE,34(24).
MLA	Zhang, Jingyi,et al."Coupled Effects of Moisture Transport Pathway and Convection on Stable Isotopes in Precipitation across the East Asian Monsoon Region: Implications for Paleoclimate Reconstruction".JOURNAL OF CLIMATE 34.24(2021).