Seasonal dynamics of physical and biological processes in the central California Current System: A modeling study
Guo, L; Chai, F; Xiu, P; Xue, HJ; Rao, S; Liu, YG; Chavez, FP; guolin0536@hotmail.com; fchai@maine.edu
2014
发表期刊OCEAN DYNAMICS
ISSN1616-7341
卷号64期号:8页码:1137-1152
摘要A 3-D physical and biological model is used to study the seasonal dynamics of physical and biological processes in the central California Current System. Comparisons of model results with remote sensing and in situ observations along CalCOFI Line 67 indicate our model can capture the spatial variations of key variables (temperature, nutrients, chlorophyll, and so on) on annual mean and seasonal cycle. In the coastal upwelling system, it is the alongshore wind stress that upwells high nutrients to surface from 60 m and stimulates enhanced plankton biomass and productivity in the upwelling season. As a result, coastal species peak in the late upwelling period (May-July), and oceanic species reach the annual maxima in the oceanic period (August-October). The annual maximum occurs in the late upwelling period for new production and in the oceanic period for regenerated production. From the late upwelling period to the oceanic period, stratification is intensified while coastal upwelling becomes weaker. Correspondingly, the coastal ecosystem retreats from similar to 300 to similar to 100 km offshore with significant decline in chlorophyll and primary production, and the oceanic ecosystem moves onshore. During this transition, the decline in phytoplankton biomass is due to the grazing pressure by mesozooplankton in the 0-150 km domain, but is regulated by low growth rates in the 150-500 km offshore domain. Meanwhile, the growth rates of phytoplankton increase in the coastal waters due to deeper light penetration, while the decrease in offshore growth rates is caused by lower nitrate concentrations.
部门归属[Guo, Lin ; Liu, Yuguang] Ocean Univ China, Coll Phys & Environm Oceanog, Qingdao 266100, Peoples R China ; [Chai, Fei ; Xue, Huijie ; Rao, Shivanesh] Univ Maine, Sch Marine Sci, Orono, ME 04469 USA ; [Xiu, Peng] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China ; [Chavez, Francisco P.] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA
关键词3-d Physical And Biological Model Physical And Biological Processes Biomass Growth Rate The Central California Current System
学科领域Oceanography
资助者100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304]
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收录类别sci
资助项目LTO
资助者100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304] ; 100-Talent Program of Chinese Academy of Sciences [50601-112]; Strategic Priority Research program of the Chinese Academy of Sciences [XDA10010304]
WOS记录号WOS:000340361100004
引用统计
被引频次:7[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/344004/10519
专题热带海洋环境国家重点实验室(LTO)
通讯作者guolin0536@hotmail.com; fchai@maine.edu
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GB/T 7714
Guo, L,Chai, F,Xiu, P,et al. Seasonal dynamics of physical and biological processes in the central California Current System: A modeling study[J]. OCEAN DYNAMICS,2014,64(8):1137-1152.
APA Guo, L.,Chai, F.,Xiu, P.,Xue, HJ.,Rao, S.,...&fchai@maine.edu.(2014).Seasonal dynamics of physical and biological processes in the central California Current System: A modeling study.OCEAN DYNAMICS,64(8),1137-1152.
MLA Guo, L,et al."Seasonal dynamics of physical and biological processes in the central California Current System: A modeling study".OCEAN DYNAMICS 64.8(2014):1137-1152.
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