IOCAS-IR  > 海洋地质与环境重点实验室
Impact of Typhoon Talim on surface sediment records on the East China Sea continental shelf
Lu, Jian1,2,3; Li, Anchun1,2,3; Dong, Jiang4; Feng, Xuguang5; Pei, Wenqiang1
2021-09-30
Source PublicationESTUARINE COASTAL AND SHELF SCIENCE
ISSN0272-7714
Volume259Pages:15
Corresponding AuthorLu, Jian(lujian@qdio.ac.cn)
AbstractThe East China Sea (ECS) is susceptible to summer typhoons, which play an important role in sediment transport and reworking on the continental shelf. However, because observations during typhoon passage are difficult to carry out even at present, the influence of typhoons on sedimentary records in the ECS is not fully understood. In this study, we compared the elemental compositions and grain-size distributions of surface sediments collected before and after the passage of Typhoon Talim. Through end-member modeling algorithm (EMMA) analysis, the variations in sediment composition due to the typhoon passage were characterized, and the impacts of typhoons on sediment migration, redistribution and sedimentary records on the ECS continental shelf were elucidated. Comparison of the results revealed that after the passage of Typhoon Talim, the clay distributions were generally parallel to the coastline, the sand contents in the northeast and southeast of the study area decreased, and the sorting coefficient decreased in the inner shelf mud area and increased in the relict sand area. The three-endmember model was capable of adequately reproducing all variables, and the three end members were interpreted to be the fine-grained components of river terrigenous sediments (EM1), mixed sediments (EM2), and relict sands (EM3) according to the grain-size and chemical element composition characteristics of surface sediments. Summer typhoons can interrupt the cross-shelf transport of fine-grained sediments caused by crossshelf penetrating fronts (CPFs) and can promote exchange between fine-grained sediments and relict sands on the ECS continental shelf. Thus, summer typhoons play a vital role in retaining the mud on the ECS inner shelf and redistributing the sediments on the ECS continental shelf.
KeywordEast China Sea Typhoon Talim Surface sediments Grain size
DOI10.1016/j.ecss.2021.107479
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41876068] ; National Natural Science Foundation of China (NSFC)[41430965] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2018KG03] ; National Natural Science Foundation of China[41649902]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000685504900003
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/176035
Collection海洋地质与环境重点实验室
Corresponding AuthorLu, Jian
Affiliation1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Minist Nat Resources, Inst Oceanog 1, Qingdao 266061, Peoples R China
5.Nanjing Univ, Sch Geog & Oceanog Sci, Key Lab Coast & Isl Dev, Minist Educ, Nanjing 210093, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu, Jian,Li, Anchun,Dong, Jiang,et al. Impact of Typhoon Talim on surface sediment records on the East China Sea continental shelf[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2021,259:15.
APA Lu, Jian,Li, Anchun,Dong, Jiang,Feng, Xuguang,&Pei, Wenqiang.(2021).Impact of Typhoon Talim on surface sediment records on the East China Sea continental shelf.ESTUARINE COASTAL AND SHELF SCIENCE,259,15.
MLA Lu, Jian,et al."Impact of Typhoon Talim on surface sediment records on the East China Sea continental shelf".ESTUARINE COASTAL AND SHELF SCIENCE 259(2021):15.
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