Effect of different types of El Nino on primary productivity in the South China Sea
Liao, XM; Ma, JF; Zhan, HG; hgzhan@scsio.ac.cn
2012
发表期刊AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
ISSN1463-4988
卷号15期号:2页码:135-143
摘要More than ten years of satellite-derived net primary production (NPP) data were used to investigate the interannual variations of NPP associated with two different types of El Nino in the South China Sea (SCS). Results of the empirical orthogonal function analysis (EOF) showed that the first two modes had significant interannual variations and were sensitive to two types of El Nino. The first mode is highly correlated to the canonical El Nino. This mode is characterized by basin-scale decreased NPP during the canonical El Nino years, predominantly diminished off the east coast of Vietnam and the northwest coast of Luzon. The second mode is well correlated to the El Nino Modoki, showing increased NPP in the central and eastern SCS during the El Nino Modoki years. The interannual NPP variability is linked to anomalous atmospheric and oceanic conditions associated with these two types of El Nino. During the developing phase of El Nino Modoki, enhanced western North Pacific summer monsoon and moderate northeasterly wind divergence gave rise to the positive wind stress curl anomalies in the central and eastern SCS, inducing strong Ekman upwelling and increased upward nutrient supply. The moderate Ekman upwelling in the mature phase of El Nino Modoki also sustained the ocean primary productivity. Basin-scale decreased NPP in the SCS was attributed to anomalous weakened wind and abnormal warm sea surface temperature throughout the period of canonical El Nino.
部门归属[Liao, Xiaomei; Ma, Jinfeng; Zhan, Haigang] Chinese Acad Sci, State Key Lab Trop Oceanog, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Liao, Xiaomei; Ma, Jinfeng] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
关键词Ocean Primary Productivity Interannual Variability El Nino Modoki
学科领域Ecology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
语种英语
资助项目LTO
WOS记录号WOS:000306323300005
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10237
专题热带海洋环境国家重点实验室(LTO)
通讯作者hgzhan@scsio.ac.cn
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Liao, XM,Ma, JF,Zhan, HG,et al. Effect of different types of El Nino on primary productivity in the South China Sea[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2012,15(2):135-143.
APA Liao, XM,Ma, JF,Zhan, HG,&hgzhan@scsio.ac.cn.(2012).Effect of different types of El Nino on primary productivity in the South China Sea.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,15(2),135-143.
MLA Liao, XM,et al."Effect of different types of El Nino on primary productivity in the South China Sea".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 15.2(2012):135-143.
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