Effect of precipitation seasonality on annual oxygen isotopic composition in the area of spring persistent rain in southeastern China and its paleoclimatic implication

doi:10.5194/cp-16-211-2020

	Effect of precipitation seasonality on annual oxygen isotopic composition in the area of spring persistent rain in southeastern China and its paleoclimatic implication
	Zhang, Haiwei 2,3; Cheng, Hai 1,3; Cai, Yanjun 2,3; Spoetl, Christoph 4; Sinha, Ashish 5; Kathayat, Gayatri 3; Li, Hanying 3
刊名	CLIMATE OF THE PAST
	2020-01-30
卷号	16 期号:1 页码:211-225
ISSN号	1814-9324
DOI	10.5194/cp-16-211-2020
通讯作者	Zhang, Haiwei(zhanghaiwei@xjtu.edu.cn)
英文摘要	This study examines the seasonality of precipitation amount and delta O-18 over the monsoon region of China (MRC). We found that the precipitation amount associated with the East Asian summer monsoon (EASM) in the spring persistent rain (SPR) region is equivalent to that of the non-summer monsoon (NSM). The latter contributes similar to 50% to amount-weighted annual delta O-18 values, in contrast with other areas in the MRC, where the delta O-18 of annual precipitation is dominated by EASM precipitation. Interannual relationships between the El Nino-Southern Oscillation (ENSO) index, simulated delta O-18 data from IsoGSM, and seasonal precipitation amount in the SPR region were also examined. We found that on interannual timescales, the seasonality of precipitation amount (EASM / NSM ratio) was modulated by ENSO and primarily influences the variability of amount-weighted annual precipitation delta O-18 values in the SPR region, although integrated regional convection and moisture source and transport distance may also play subordinate roles. During El Nino (La Nina) phases, less (more) EASM and more (less) NSM precipitation leading to lower (higher) EASM / NSM precipitation amount ratios results in higher (lower) amount-weighted annual precipitation delta O-18 values and, consequently, in higher (lower) speleothem delta O-18 values. Characterizing spatial differences in seasonal precipitation is, therefore, key to correctly interpreting speleothem delta O-18 records from the MRC.
资助项目	NSFC[41502166] ; China Postdoctoral Science Foundation[2015M580832] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1046] ; Key Laboratory of Karst Dynamics, Ministry of Land and Resources of the People's Republic of China (MLR)[KDL201502] ; Guangxi Zhuang Autonomous Region (GZAR)[KDL201502]
WOS关键词	ASIAN SUMMER MONSOON ; SOUTH CHINA ; NORTHERN CHINA ; ENSO ; RECORDS ; VARIABILITY ; CLIMATE ; CIRCULATION ; SCALE ; CAVE
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000510401500001
资助机构	NSFC ; China Postdoctoral Science Foundation ; State Key Laboratory of Loess and Quaternary Geology ; Key Laboratory of Karst Dynamics, Ministry of Land and Resources of the People's Republic of China (MLR) ; Guangxi Zhuang Autonomous Region (GZAR)
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/12821]
专题	地球环境研究所_现代环境研究室
通讯作者	Zhang, Haiwei
作者单位	1.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China 4.Univ Innsbruck, Inst Geol, A-6020 Innsbruck, Austria 5.Calif State Univ Dominguez Hills, Dept Earth Sci, Carson, CA 90747 USA
推荐引用方式 GB/T 7714	Zhang, Haiwei,Cheng, Hai,Cai, Yanjun,et al. Effect of precipitation seasonality on annual oxygen isotopic composition in the area of spring persistent rain in southeastern China and its paleoclimatic implication[J]. CLIMATE OF THE PAST,2020,16(1):211-225.
APA	Zhang, Haiwei.,Cheng, Hai.,Cai, Yanjun.,Spoetl, Christoph.,Sinha, Ashish.,...&Li, Hanying.(2020).Effect of precipitation seasonality on annual oxygen isotopic composition in the area of spring persistent rain in southeastern China and its paleoclimatic implication.CLIMATE OF THE PAST,16(1),211-225.
MLA	Zhang, Haiwei,et al."Effect of precipitation seasonality on annual oxygen isotopic composition in the area of spring persistent rain in southeastern China and its paleoclimatic implication".CLIMATE OF THE PAST 16.1(2020):211-225.