Three Types of Typhoon-Induced Upwellings Enhance Coastal Algal Blooms: A Case Study

doi:10.1029/2022JC018448

IOCAS-IR > 海洋环流与波动重点实验室

	Three Types of Typhoon-Induced Upwellings Enhance Coastal Algal Blooms: A Case Study
	Li, Yuxuan 1,2,3,4,5; Yang, Dezhou 1,2,3,4,5; Xu, Lingjing 1,3,4,5; Gao, Guandong 1,3,4,5; He, Zhiwei 1,2,3,4,5; Cui, Xuan 1,2,3,4,5; Jiang, Wenxin 1,2,3,4,5; Feng, Xingru 1,3,4,5; Yin, Baoshu 1,2,3,4,5
	2022-05-01
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN	2169-9275
卷号	127 期号:5 页码:20
通讯作者	Yang, Dezhou(yangdezhou@qdio.ac.cn)
摘要	Satellite data show that typhoon Chan-hom did trigger an algal bloom several days after passing by the East China Sea. To investigate dynamic connections between this enhanced chlorophyll-a and phosphate-rich Kuroshio subsurface water (KSSW), we set up a fine-resolution coupled physical-biological model, which effectively reproduced the oceanic conditions during this typhoon. Furthermore, we released a passive tracer along a zonal transect northeast of Taiwan. The modeled surface tracer variations along the coast of Zhejiang agreed very well with satellite data and chlorophyll-a changes in the biological model. The lowest structural similarity index between chlorophyll-a and KSSW was 0.77. Model results along a coastal section imply that typhoon Chan-hom induced additional upwellings and enhanced vertical mixing, leading to more KSSW outcropping. Through horizontal dynamic diagnostic and vertical velocity decomposition, we distinguished three types of dynamical mechanisms for the upward motions. At first, the linear wind Ekman effect existed around the coastal areas and led to intense Ekman pumping. Second, a pronounced nonlinear effect led to upwellings, and spectrum analysis revealed that this nonlinearity consisted of high-frequency near-inertial waves and low-frequency coastal shelf waves. At last, an eddy field remained after the typhoon, continuously supplying nutrients upward to the surface layer by eddy-induced Ekman pumping. This study reveals that these mechanisms may be general on the continental shelf, where typhoons can pump phosphate-rich bottom water into the upper layer and enhance primary productivity there. The results also prove typhoon-induced nonlinear wave motions on the continental shelf contribute to the outcrop of nutrients.
DOI	10.1029/2022JC018448
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[41876019] ; National Natural Science Foundation of China (NSFC)[92158202] ; National Natural Science Foundation of China (NSFC)[42076022] ; Chinese Academy of Sciences[XDB42000000] ; Chinese Academy of Sciences[XDA19060203] ; Key Deployment Project of Centre for Ocean Mega-Research of Science[COMS2020Q01] ; National Key Research Development Program of China[2017YFC1404000] ; National Key Research Development Program of China[2016YFC1401601] ; National Key Research Development Program of China[2017YFA0604102] ; NSFC-Shandong Joint Fund[U1806227] ; Chinese Academy of Sciences ; Commonwealth Scientific and Industrial Research Organization (CSIRO) ; High-Performance Computing Center at the Institute of Oceanology Chinese Academy of Sciences (IOCAS) ; Offshore Marine Observation and Research Network (OMORN)
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000798227200001
出版者	AMER GEOPHYSICAL UNION
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179279
专题	海洋环流与波动重点实验室
通讯作者	Yang, Dezhou
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Li, Yuxuan,Yang, Dezhou,Xu, Lingjing,et al. Three Types of Typhoon-Induced Upwellings Enhance Coastal Algal Blooms: A Case Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2022,127(5):20.
APA	Li, Yuxuan.,Yang, Dezhou.,Xu, Lingjing.,Gao, Guandong.,He, Zhiwei.,...&Yin, Baoshu.(2022).Three Types of Typhoon-Induced Upwellings Enhance Coastal Algal Blooms: A Case Study.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,127(5),20.
MLA	Li, Yuxuan,et al."Three Types of Typhoon-Induced Upwellings Enhance Coastal Algal Blooms: A Case Study".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 127.5(2022):20.

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