Biogeochemical cycles associated with mesoscale eddies in the South China Sea (SCS) were investigated. The study was based on a coupled physical–biogeochemical Pacific Ocean model (Regional Ocean Model System– Carbon, Silicate, and Nitrogen Ecosystem, ROMS-CoSiNE) simulation for the period from 1991 to 2008.
2020-06-02
This study shows that the response of satellite-observed chlorophyll (CHL) to eddy motion varies seasonally in the South China Sea (SCS). The spatial pattern of the CHL anomaly composite for eddies is a dipole in summer and a monopole in winter, indicating that sea surface CHL is largely regulated by the horizontal rotational velocity of the eddy in summer and by eddy pumping and trapping in winter. The dipole pattern for anticyclonic eddies w...
2020-06-02
本文利用三维数值模型(ROMS-CoSiNE)分析了整个加利福尼亚流系水平流场的季节性演变过程, 研究了美国加州中部海域流场垂直结构的季节性变化特征, 并探讨了其动力学机制。
2020-06-02
New evidences were provided that Kuroshio intrusion in winter is able to increase phytoplankton growth in the open ocean of the northern South China Sea (SCS) based on multiple data sources. Strong fronts due to Kuroshio intrusion and interactions with the SCS water are associated with intense upwelling, supplying high nutrients from the subsurface SCS water and increasing phytoplankton productivity in the frontal region.
2020-06-02
Mesoscale eddies can influence biogeochemical cycles through both vertical nutrient or plankton flux and horizontal advection of nutrient or plankton in eddy periphery. In this study, we analyzed the seasonal and spatial variability of near-sea-surface chlorophyll-a concentrations and their corresponding modulation mechanisms by collocating satellite observations of eddies tracked during 1998–2007 in the South China Sea.
2020-06-02
采用 2002—2016 年 6—9 月 Aqua/MODIS 叶绿素 a 产品分析珠江冲淡水在南海北部生态效应的季节及年际变化特征。6 月来自陆源的营养物质在西南季风作用下向河口以东陆架区输运, 浮游植物增殖, 叶绿素 a 含量增大; 7 月河口以东高浓度叶绿素 a 覆盖面积达到最大; 8 月在减弱的珠江径流和环境风场共同影响下, 口门外海高浓度叶绿素 a 覆盖 面积明显减小; 9 月北部陆架区处于东北季风影响之下, 河口以西覆盖面积逐渐增大。
2020-06-02
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