Intermittent migration of mixing front driven by typhoon events on the inner shelf of the East China Sea: A FVCOM modeling study

doi:10.1016/j.margeo.2023.107161

CORC > 海洋研究所 > 中国科学院海洋研究所

	Intermittent migration of mixing front driven by typhoon events on the inner shelf of the East China Sea: A FVCOM modeling study
	Cong, Shuai 2; Wu, Xiao 2,3; Ge, Jianzhong 4; Bi, Naishuang 2,3; Li, Yunhai 1; Lu, Jian 5; Wang, Houjie 2,3,6
刊名	MARINE GEOLOGY
	2023-11-01
卷号	465 页码:12
关键词	Mixing fronts Intermittent migration Inner shelf of the East China Sea Typhoon Chan-hom Numerical modeling
ISSN号	0025-3227
DOI	10.1016/j.margeo.2023.107161
通讯作者	Wang, Houjie(hjwang@mail.ouc.edu.cn)
英文摘要	Mixing fronts on the inner shelf of the East China Sea (ECS) are common under normal summer conditions, yet its migration during extreme weather events, such as typhoons, has been poorly understood due to limited availability of observational data. In this study, we used a well-validated Finite-Volume Community Ocean Model (FVCOM) to investigate the intermittent migration of mixing fronts on the inner shelf of the ECS during the passage of Typhoon Chanhom in July 2015. The sedimentary and ecological effects of the front migration were also revealed. Results suggested that the potential energy anomaly (PEA) of 10 J/m3 could be a critical value to determine the location of the mixing front, which was consistent with that derived from the Simpson-Hunter (SH) parameter. Accordingly, the mixing front showed a rapid seaward migration from 15-m isobaths to 60-m isobaths under the drastic ocean turbulence during the typhoon and recovered shortly after its passage. This intermittent migration of the mixing front had the potential to facilitate cross-shelf material transport during the typhoon. On the one hand, the front migration could not only open the access for the seaward transport of nearshore resuspended sediments but also trap them within a certain area, causing an offshore deposition between 20 and 60 m isobaths south of the typhoon track. The mixing fronts had a boundary effect constraining the typhoon induced sedimentation. On the other hand, unlike sediments that would settle down with weakened ocean dynamics, the offshore movement of coastal diluted water triggered by the typhoon remained after the front recovery. These nutrient-rich waters could be transported to the middle or even outer shelf of the ECS by the subsequent southwest summer monsoon, enhancing local primary production and potentially trigering significant algal blooms.
资助项目	National Science Foundation of China[42121005] ; National Science Foundation of China[42306082] ; National Science Foundation of China[42176168] ; Taishan Scholar Project of Shandong Province[TS20190913] ; Taishan Scholar Project of Shandong Province[TSQN202211054] ; Fundamental Research Funds for the Central Universities[202241007] ; Youth Innovation Team Program in Colleges and Universities of Shandong Province[2022KJ045]
WOS关键词	SURFACE TEMPERATURE FRONTS ; ZHEJIANG-FUJIAN COAST ; SEDIMENT TRANSPORT ; TROPICAL CYCLONE ; YANGTZE-RIVER ; TIDAL FRONTS ; SOUTH-AMERICA ; CHAN-HOM ; OCEAN ; VARIABILITY
WOS研究方向	Geology ; Oceanography
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001104141300001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/183984]
专题	中国科学院海洋研究所
通讯作者	Wang, Houjie
作者单位	1.Minist Nat Resources, Inst Oceanog 3, 178 Daxue Rd, Xiamen 361005, Peoples R China 2.Ocean Univ China, Coll Marine Geosci, Key Lab Submarine Geosci & Prospecting Tech, 238 Songling Rd, Qingdao 266100, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, 1 Wenhai Rd, Qingdao 266061, Peoples R China 4.East China Normal Univ, State Key Lab Estuarine & Coastal Res, 500 Dongchuan Rd, Shanghai 200241, Peoples R China 5.Chinese Acad Sci IOCAS, Inst Oceanol, 7 Nanhai Rd, Qingdao 266071, Peoples R China 6.Ocean Univ China, Coll Marine Geosci, 238 Songling Rd, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Cong, Shuai,Wu, Xiao,Ge, Jianzhong,et al. Intermittent migration of mixing front driven by typhoon events on the inner shelf of the East China Sea: A FVCOM modeling study[J]. MARINE GEOLOGY,2023,465:12.
APA	Cong, Shuai.,Wu, Xiao.,Ge, Jianzhong.,Bi, Naishuang.,Li, Yunhai.,...&Wang, Houjie.(2023).Intermittent migration of mixing front driven by typhoon events on the inner shelf of the East China Sea: A FVCOM modeling study.MARINE GEOLOGY,465,12.
MLA	Cong, Shuai,et al."Intermittent migration of mixing front driven by typhoon events on the inner shelf of the East China Sea: A FVCOM modeling study".MARINE GEOLOGY 465(2023):12.