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学科主题: Geology ; Marine & Freshwater Biology ; Oceanography
题名: Influence of oceanic Rossby waves on phytoplankton production in the southern tropical Indian Ocean
作者: Ma, JF ; Du, Y ; Zhan, HG ; Liu, HL ; Wang, J
通讯作者: duyan@scsio.ac.cn
关键词: Southern tropical Indian Ocean ; Thermocline ; Planetary waves ; El Nino phenomena ; Upwelling ; Chlorophylls
刊名: JOURNAL OF MARINE SYSTEMS
发表日期: 2014
卷: 134, 页:12-19
收录类别: sci
部门归属: [Ma, Jinfeng ; Du, Yan ; Zhan, Haigang] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog LTO, Guangzhou 510301, Guangdong, Peoples R China ; [Ma, Jinfeng ; Liu, Hailong] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China ; [Wang, Jia] NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48105 USA
项目归属: LTO
资助者: National Basic Research Program of China [2010CB950302, 2012CB955603]; Chinese Academy of Sciences [XDA11010103]; National Natural Science Foundation of China [41176162]
摘要: Using Sea-viewing Wide Field-of-view Sensor (SeaWiFS) ocean color data, we investigated the biological responses to oceanic Rossby waves in the southern tropical Indian Ocean (TIO) during 1997-2007. The findings indicate that, during the developing phase of El Nino/La Nina events, usually in boreal fall, and triggered by anomalous anticyclonic/cyclonic wind circulations in the southeast TIO, downwelling/upwelling Rossby waves form and then propagate westward. After a few months, downwelling/upwelling Rossby waves interface with the thermocline dome in the southern TIO, and suppress/enhance the upwelling. Correspondingly, less/more nutrient-rich waters enter the mixed layer and result in lower/higher chlorophyll concentrations. Due to the asymmetric effects on the thermocline dome between downwelling and upwelling Rossby waves, higher chlorophyll concentrations appear earlier and in the eastern part of the dome, whereas lower chlorophyll concentrations appear later and in the central part of the dome. Moreover, when El Nino/La Nina-Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) events coincide, the biological responses are stronger. (C) 2014 Elsevier B.V. All rights reserved.
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WOS记录号: WOS:000336349200002
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10548
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Ma, JF; Du, Y; Zhan, HG; Liu, HL; Wang, J.Influence of oceanic Rossby waves on phytoplankton production in the southern tropical Indian Ocean,JOURNAL OF MARINE SYSTEMS,2014,134():12-19
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