Detailed spatiotemporal impacts of El Nino on phytoplankton biomass in the South China Sea
Siswanto, E; Ye, HJ; Yamazaki, D; Tang, DL; ekosiswanto@jamstec.go.jp
2017
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
卷号122期号:4页码:2709-2723
摘要The lagging and leading correlations among satellite observations, reanalyzed biogeophysical data, and the Nino3.4 El Nino index were investigated to reveal the impacts of El Nino on the phytoplankton biomass (chlorophyll a [Chl a]) in the South China Sea (SCS), in an attempt to identify the probable responsible factors in greater spatiotemporal detail. A basin-scale high Chl a concentration during the developing phase of El Nino changed to basin-scale low Chl a during the weakening phase. Cyclonic wind circulation in the northern basin, increased wind speed in the southern basin, and strengthened upwelling off the Vietnamese coast likely caused a basin-scale nutrient increase during the developing phase of an El Nino event; the opposite conditions led to low nutrient levels during the weakening phase. Decreases in Chl a east of the Vietnamese coast and northwest of Borneo Island were due to decreases in nutrients supplied by rivers. These spatiotemporal changes are considered biogeophysical responses to a variety of types of El Nino. Regardless of the El Nino type, reanalyzing biogeophysical data sets during central Pacific warming separately from those during eastern Pacific warming is recommended for a more robust understanding of the detailed spatiotemporal impacts of different El Nino types on the biogeophysical environment of the SCS.
部门归属[Siswanto, Eko] Japan Agcy Marine Earth Sci & Technol, Dept Environm & Geochem Cycle Res, Yokohama, Kanagawa, Japan; [Ye, Haijun; Tang, DanLing] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China; [Yamazaki, Dai] Japan Agcy Marine Earth Sci & Technol, Dept Integrated Climate Change Project Res, Yokohama, Kanagawa, Japan
关键词Chlorophyll a El Nino Nutrient Sources Ocean Color Upwelling Downwelling
资助项目LTO
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/16444
专题热带海洋环境国家重点实验室(LTO)
通讯作者ekosiswanto@jamstec.go.jp
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GB/T 7714
Siswanto, E,Ye, HJ,Yamazaki, D,et al. Detailed spatiotemporal impacts of El Nino on phytoplankton biomass in the South China Sea[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2017,122(4):2709-2723.
APA Siswanto, E,Ye, HJ,Yamazaki, D,Tang, DL,&ekosiswanto@jamstec.go.jp.(2017).Detailed spatiotemporal impacts of El Nino on phytoplankton biomass in the South China Sea.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,122(4),2709-2723.
MLA Siswanto, E,et al."Detailed spatiotemporal impacts of El Nino on phytoplankton biomass in the South China Sea".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 122.4(2017):2709-2723.
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