A satellite-based analysis on the seasonal variations and inter-relationships between chlorophyll and particle in the South China Sea

Wang Xiaoqi; Xing Xiaogang; Wang Jinping; Li Na

doi:10.3969/j.issn.0253-4193.2015.10.003

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Wang Xiaoqi, Xing Xiaogang, Wang Jinping, Li Na. A satellite-based analysis on the seasonal variations and inter-relationships between chlorophyll and particle in the South China Sea[J]. Haiyang Xuebao, 2015, 37(10): 26-38. doi: 10.3969/j.issn.0253-4193.2015.10.003

Citation:

Wang Xiaoqi, Xing Xiaogang, Wang Jinping, Li Na. A satellite-based analysis on the seasonal variations and inter-relationships between chlorophyll and particle in the South China Sea[J]. Haiyang Xuebao, 2015, 37(10): 26-38. doi: 10.3969/j.issn.0253-4193.2015.10.003

Citation:

Wang Xiaoqi, Xing Xiaogang, Wang Jinping, Li Na. A satellite-based analysis on the seasonal variations and inter-relationships between chlorophyll and particle in the South China Sea[J]. Haiyang Xuebao, 2015, 37(10): 26-38. doi: 10.3969/j.issn.0253-4193.2015.10.003

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A satellite-based analysis on the seasonal variations and inter-relationships between chlorophyll and particle in the South China Sea

doi: 10.3969/j.issn.0253-4193.2015.10.003

College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China

Received Date: 2015-02-03

Abstract

Abstract

On the basis of satellite remotely sensed monthly chlorophyll a concentration and particle backscattering coefficient,as well as other oceanographic and meteorological parameters,this study analyzed on the correlation coefficients between concentration of chlorophyll a and particulate backscattering on seasonal scale and their coupling relationships with physical parameters in the South China Sea. In addition,a phytoplankton photoacclimation model was utilized to identify the physiological characteristics. The results showed that,due to the influences of specific topography,wind forcing and other physical parameters,both consistency and discrepancy between the seasonal cycles of chlorophyll a and particle backscattering coefficient were found in the South China Sea. In coastal and shallow waters,two properties were strongly coupled; while in the central deep-water basin,chlorophyll a was higher in winter and lower in summer,totally differing from the seasonal evolution of particles,such phenomenon was mainly owing to phytoplankton physiological process. The boundary of "biomass regime" and "photoacclimation regime" in the South China Sea located at the shelf-basin interface,suggesting the influence of water depth on the phytoplankton physiological status. Furthermore,a characteristics of "biomass-photoacclimation joint controlling" was found in the west of Luzon Strait.
- chlorophyll a concentration,
- particle backscattering coefficient,
- South China Sea,
- seasonal scale,
- photoacclimation

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