Surface chlorophyll anomalies induced by mesoscale eddy-wind interactions in the northern Norwegian Sea

doi:10.3389/fmars.2022.1002632

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	Surface chlorophyll anomalies induced by mesoscale eddy-wind interactions in the northern Norwegian Sea
	Dong, Huizi 1,2; Zhou, Meng 1; Raj, Roshin P.3; Smith Jr, Walker O.1,4; Basedow, Suennje L.5; Ji, Rubao 2; Ashjian, Carin 2; Zhang, Zhaoru 1; Hu, Ziyuan 6
刊名	FRONTIERS IN MARINE SCIENCE
	2022-09-29
卷号	9 页码:14
关键词	mesoscale eddy eddy-induced Ekman pumping surface chlorophyll anomaly mixed layer depth composite average analysis
DOI	10.3389/fmars.2022.1002632
通讯作者	Dong, Huizi(huizidong@sjtu.edu.cn) ; Zhou, Meng(meng.zhou@sjtu.edu.cn)
英文摘要	The substantial productivity of the northern Norwegian Sea is closely related to its strong mesoscale eddy activity, but how eddies affect phytoplankton biomass levels in the upper ocean through horizontal and vertical transport-mixing has not been well quantified. To assess mesoscale eddy induced ocean surface chlorophyll-a concentration (CHL) anomalies and modulation of eddy-wind interactions in the region, we constructed composite averaged CHL and wind anomalies from 3,841 snapshots of anticyclonic eddies (ACEs) and 2,727 snapshots of cyclonic eddies (CEs) over the period 2000-2020 using satellite altimetry, scatterometry, and ocean color products. Results indicate that eddy pumping induces negative (positive) CHL anomalies within ACEs (CEs), while Ekman pumping caused by wind-eddy interactions induces positive (negative) CHL anomalies within ACEs (CEs). Eddy-induced Ekman upwelling plays a key role in the unusual positive CHL anomalies within the ACEs and results in the vertical transport of nutrients that stimulates phytoplankton growth and elevated productivity of the region. Seasonal shoaling of the mixed layer depth (MLD) results in greater irradiance levels available for phytoplankton growth, thereby promoting spring blooms, which in combination with strong eddy activity leads to large CHL anomalies in May and June. The combined processes of wind-eddy interactions and seasonal shallowing of MLD play a key role in generating surface CHL anomalies and is a major factor in the regulation of phytoplankton biomass in the northern Norwegian Sea.
资助项目	Sino-Norway Collaborative STRESSOR Project - Natural Science Foundation of China (NSFC)[41861134040] ; Research Council of Norway (RCN)[287043] ; NSFC Special Program[41941008] ; Shanghai Frontiers Science Center of Polar Science(SCOPS) ; European Space Agency (Prodex project S23Deddy)[4000135226] ; Bjerknes Fast Track Initiative project Qrepe
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000868556900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/180626]
专题	海洋研究所_胶州湾海洋生态系统国家野外研究站
通讯作者	Dong, Huizi; Zhou, Meng
作者单位	1.Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai, Peoples R China 2.Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA 3.Norway & Bjerknes Ctr Climate Res, Nansen Environm & Remote Sensing Ctr, Bergen, Norway 4.Virginia Inst Marine Sci, William & Mary, Gloucester Pt, Gloucester Pt, VA 23062 USA 5.UiT Arctic Univ Norway, Dept Arctic & Marine Biol, Tromso, Norway 6.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Natl Marine Ecosyst Res Stn, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Dong, Huizi,Zhou, Meng,Raj, Roshin P.,et al. Surface chlorophyll anomalies induced by mesoscale eddy-wind interactions in the northern Norwegian Sea[J]. FRONTIERS IN MARINE SCIENCE,2022,9:14.
APA	Dong, Huizi.,Zhou, Meng.,Raj, Roshin P..,Smith Jr, Walker O..,Basedow, Suennje L..,...&Hu, Ziyuan.(2022).Surface chlorophyll anomalies induced by mesoscale eddy-wind interactions in the northern Norwegian Sea.FRONTIERS IN MARINE SCIENCE,9,14.
MLA	Dong, Huizi,et al."Surface chlorophyll anomalies induced by mesoscale eddy-wind interactions in the northern Norwegian Sea".FRONTIERS IN MARINE SCIENCE 9(2022):14.