Satellite and in situ observations of primary production in the northern South China Sea
Satellite and in situ observations of primary production in the northern South China Sea
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DOI：
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发表时间：
2007
影响因子：
1.4
通讯作者：
Fengfeng Le
中科院分区：
文献类型：
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作者：
Fengfeng Le
利用南海北方的叶绿素a、K 490和SST等遥感资料，建立了一个改进的VGPM模型，并将其应用于南海北部初级生产力的估算。根据同步船测数据对模型进行了修正，并对修正后的模型进行了误差估计，在此基础上，7年来初级生产力月平均值结果表明，南海北方初级生产力（C）从近岸逐渐降低，平均值为400 mg/（m2·d）从季节变化看，研究区初级生产力的日平均值冬季最高，为608 mg/（m2·d），夏季最低，为292 mg/（m2·d），春季和秋季基本相同。温度和PAR，特别是季风环流驱动的营养物质。
An improved VGPM model were developed and applied to estimate the primary production in the northern South China Sea.The parameters of the model were gained based on the remote sensing data(including Chl a,K490 and SST et al.)provided by SeaWiFS and AVHRR.The model was modified according to the synchronous ship-measured data and the errors were estimated as well.Based on this improved model,the monthly mean of primary production in 7 years(1998 to 2004) in the northern South China Sea were calculated.Results show that the primary production(C) in the studied area gradually decrease from coastal zone [the mean 400 mg/(m2·d)] to deep sea [100～200 mg/(m2·d)].With respect to the seasonal variation,the daily average primary production in the whole study area is the highest in winter [608 mg/(m2·d)] and the lowest in summer [292 mg/(m2·d)] and it is almost the same between spring and autumn.The main factors which affect the spatial-temporal distribution of primary production are nutrients,temperature and PAR.,particularly nutrients which driven by monsoon-circulation.