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, Wenchao1,2,3; Dodson, John2,4; Chang, Maoxiang1,3; Li, Guangxue1,3
Corresponding AuthorZhang, Wenchao(zhangwenchao@ouc.edu.cn)
2021-10-01
Source PublicationPALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
ISSN2572-4517
Volume36Issue:10Pages:13
AbstractPresent 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.
Keywordhydrological changes ENSO-like states the last deglaciation Dajiuhu basin
DOI10.1029/2021PA004279
WOS KeywordASIAN SUMMER MONSOON ; MILLENNIAL-SCALE ; HIGH-RESOLUTION ; LAKE-SEDIMENTS ; GRAIN-SIZE ; CLIMATE CHANGES ; GLOBAL MONSOON ; INNER-MONGOLIA ; NORTHERN CHINA ; SOUTH CHINA
Indexed BySCI ; SCI
Language英语
Funding ProjectNational 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 Research AreaGeology ; Oceanography ; Paleontology
Funding OrganizationNational 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 SubjectGeosciences, Multidisciplinary ; Oceanography ; Paleontology
WOS IDWOS:000711966000004
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17158
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorZhang, Wenchao
Affiliation1.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
Recommended Citation
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.
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