兰州大学机构库
Southward shift of the Westerlies during Heinrich Event 2: Evidence from loess deposits in Central Asia
Fan, Yijiao1; Jia, Jia2; Xia, Dunsheng1; Liu, Yan1; Jiang, Baorong2; Yang, Junhuai1; Gao, Fuyuan3; Chen, Jianhui1
2023-11-15
Online publication date2023-09
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY   Impact Factor & Quartile
ISSN0031-0182 ; 1872-616X
EISSN1872-616X
Volume630
page numbers10
AbstractKnowledge of past changes in the Westerlies is important for understanding the climatic and environmental evolution of Central Asia. Here, we use high-resolution grain size records from several loess deposits in Central Asia to study the spatial pattern of the Westerlies during an interval of high global ice volume during the Last Glacial Maximum. During Heinrich event 2 (H2), the Westerlies strengthened in southern Central Asia, as indicated by the high accumulation rate of dust transported by the Westerlies, while it decreased in northern Central Asia. Our grain size record, combined with climate modeling results, suggest that the main axis of the Westerlies strengthened and moved southward to southern Central Asia during Heinrich events, especially H2. Comparison with other climate records from East Asia indicates that a southward shift of the Westerlies may influence the extension of the downstream East Asian Summer monsoon rain belt into north and northwest China. Thus, the position and strength of the mid-latitude Westerlies need to be considered in future studies of the Asian monsoon.
KeywordCentral Asia Westerlies Heinrich events Last Glacial maximum Loess deposits
PublisherELSEVIER
DOI10.1016/j.palaeo.2023.111815
Indexed BySCIE
Language英语
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:001082624600001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568989
Collection兰州大学
Corresponding AuthorJia, Jia; Xia, Dunsheng
Affiliation
1.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China;
2.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China;
3.Lanzhou City Univ, Coll Urban Environm, Lanzhou 730070, Peoples R China
Recommended Citation
GB/T 7714
Fan, Yijiao,Jia, Jia,Xia, Dunsheng,et al. Southward shift of the Westerlies during Heinrich Event 2: Evidence from loess deposits in Central Asia[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,630.
APA Fan, Yijiao.,Jia, Jia.,Xia, Dunsheng.,Liu, Yan.,Jiang, Baorong.,...&Chen, Jianhui.(2023).Southward shift of the Westerlies during Heinrich Event 2: Evidence from loess deposits in Central Asia.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,630.
MLA Fan, Yijiao,et al."Southward shift of the Westerlies during Heinrich Event 2: Evidence from loess deposits in Central Asia".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 630(2023).
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