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, Yuxuan1,2,3,4,5; Yang, Dezhou1,2,3,4,5; Xu, Lingjing1,3,4,5; Gao, Guandong1,3,4,5; He, Zhiwei1,2,3,4,5; Cui, Xuan1,2,3,4,5; Jiang, Wenxin1,2,3,4,5; Feng, Xingru1,3,4,5; Yin, Baoshu1,2,3,4,5
2022-05-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume127Issue:5Pages:20
Corresponding AuthorYang, Dezhou(yangdezhou@qdio.ac.cn)
AbstractSatellite 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.
DOI10.1029/2022JC018448
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000798227200001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/179279
Collection海洋环流与波动重点实验室
Corresponding AuthorYang, Dezhou
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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