Impact of Typhoon Talim on surface sediment records on the East China Sea continental shelf

doi:10.1016/j.ecss.2021.107479

CORC > 海洋研究所 > 中国科学院海洋研究所 > 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, Jian 1,2,3; Li, Anchun 1,2,3; Dong, Jiang 4; Feng, Xuguang 5; Pei, Wenqiang 1
刊名	ESTUARINE COASTAL AND SHELF SCIENCE
	2021-09-30
卷号	259 页码:15
关键词	East China Sea Typhoon Talim Surface sediments Grain size
ISSN号	0272-7714
DOI	10.1016/j.ecss.2021.107479
通讯作者	Lu, Jian(lujian@qdio.ac.cn)
英文摘要	The 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.
资助项目	National 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研究方向	Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000685504900003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/176034]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Lu, Jian
作者单位	1.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
推荐引用方式 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.