Hydrological Changes Related to ENSO-Like States During the Last Deglaciation in Central Eastern China

doi:10.1029/2021PA004279

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Hydrological Changes Related to ENSO-Like States During the Last Deglaciation in Central Eastern China
	Zhang, Wenchao 1,2,3; Dodson, John 2,4; Chang, Maoxiang 1,3; Li, Guangxue 1,3
通讯作者	Zhang, Wenchao(zhangwenchao@ouc.edu.cn)
	2021-10-01
发表期刊	PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN	2572-4517
卷号	36 期号:10 页码:13
摘要	Present knowledge of hydrological changes in the East Asian summer monsoon region during the last deglaciation lacks precision, most especially for central eastern China. A hydrological reconstruction based on elemental ratios, such as Rubidium/Strontium (Rb/Sr) and Zirconium/Rubidium (Zr/Rb), and grain-size distribution for the period of 22.8-7.4 ka was derived from the Dajiuhu basin in central eastern China. The reconstruction shows that there were some small wet-dry fluctuations within the basin between 22.8 and 17.5 ka, but an abrupt wetting after 17.5 ka, with a maximum occurring around 15.0 ka, then a drying trend until the early Holocene. This pattern parallels the zonal gradient of sea surface temperature (SST) across the tropical Pacific, which suggests that wet conditions in the Dajiuhu basin respond to the decreased SST zonal gradient. A marked decrease in the tropical Pacific SST zonal gradient, seen as an El Nino-like state, could lead to an anomalous anticyclonic circulation at the Western Pacific and a southward excursion of the Western Pacific Subtropical High, which favors the occurrence of wet conditions in central eastern China. Meanwhile, this El Nino-like state could sharpen the SST meridional gradient between the tropics and the extratropics, and then shift the upper tropospheric westerlies southward, which in turn induces a prolonged Mei-yu and more precipitation in central eastern China. Overall, it is concluded that the El Nino-Southern Oscillation-like states might be a major forcing for hydrological changes in central eastern China during the last deglaciation.
关键词	hydrological changes ENSO-like states the last deglaciation Dajiuhu basin
DOI	10.1029/2021PA004279
关键词[WOS]	ASIAN SUMMER MONSOON ; MILLENNIAL-SCALE ; HIGH-RESOLUTION ; LAKE-SEDIMENTS ; GRAIN-SIZE ; CLIMATE CHANGES ; GLOBAL MONSOON ; INNER-MONGOLIA ; NORTHERN CHINA ; SOUTH CHINA
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[4210030102] ; Opening Foundation of the Key Lab of Submarine Geosciences and Prospecting Techniques, MOE[SGPT-2019OF-03] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1843]
WOS研究方向	Geology ; Oceanography ; Paleontology
项目资助者	National Natural Science Foundation of China (NSFC) ; Opening Foundation of the Key Lab of Submarine Geosciences and Prospecting Techniques, MOE ; State Key Laboratory of Loess and Quaternary Geology
WOS类目	Geosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS记录号	WOS:000711966000004
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17158
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Zhang, Wenchao
作者单位	1.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, MOE Inst Adv Ocean Study, Qingdao, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 3.Ocean Univ China, Coll Marine Geosci, Qingdao, Peoples R China 4.Univ Wollongong, Sch Earth Atmospher & Life Sci, Wollongong, NSW, Australia
推荐引用方式 GB/T 7714	Zhang, Wenchao,Dodson, John,Chang, Maoxiang,et al. Hydrological Changes Related to ENSO-Like States During the Last Deglaciation in Central Eastern China[J]. PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,2021,36(10):13.
APA	Zhang, Wenchao,Dodson, John,Chang, Maoxiang,&Li, Guangxue.(2021).Hydrological Changes Related to ENSO-Like States During the Last Deglaciation in Central Eastern China.PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY,36(10),13.
MLA	Zhang, Wenchao,et al."Hydrological Changes Related to ENSO-Like States During the Last Deglaciation in Central Eastern China".PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY 36.10(2021):13.