【摘要】 海洋颗粒有机碳(POC)监测对研究海洋碳循环和全球变化有重要意义。为寻求POC探测的有效方法,先讨论了POC的定义组成,介绍了POC的常规测定方法及国内外POC相关研究进展,接着介绍了国外POC遥感探测方法原理。通过对常规测定方法和遥感探测方法优缺点对比分析,我们认为遥感探测海洋POC方法将成为海洋环境监测的重要手段。采用2009年8月的MODIS数据,借鉴蓝绿光比值法建立的POC遥感反演模型,进行了渤海POC的遥感探测,从大尺度揭示了整个渤海POC的分布态势,最高值达370 mg/m3。结果表明:POC遥感探测方法可有效、迅捷、直观反映海区POC变化,因此研究建立具有区域特点的POC生物光学遥感模型用于POC监测,将是海洋环境监测和海洋碳循环研究的重要方向之一。更多还原

【Abstract】 Monitoring of particulate organic carbon(POC) is meaningful for the research of oceanic carbon circulation and global change.For the purpose of exploration of POC measurement method,the concept and composition of POC was firstly introduced.The ordinary measurement method of POC as well as the progress of the study of POC abroad and home was described.And the mechanism of remotely sensed detection of POC in the research abroad was represent.After the comparison analysis between the ordinary measurement and remotely sensed detection of POC,we think that the later technology will become the important method for marine environment monitoring.Based on the remotely sensed retrieval algorithm of POC which was established using the blue-to-green ratio,we detected the POC in Bohai Sea with the MODIS data in August,2009.The result showed the whole POC pattern in large scale in the Bohai Sea.The highest value of POC was 370 mg/m3.It was concluded that remotely sensed detection method can reveal the POC variety in the sea effectively,rapidly and directly.So the study on establishing a bio-optical remotely sensed model for POC monitoring will be one important field of the research of marine environment monitoring and oceanic carbon circulation.更多还原