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悬浮泥沙含量的调查对河口海岸带水质、地貌、环境等的研究,以及海岸工程、港口建设等都具有重要意义,而一般的船测方法只能获得在时间、空间上很离散的少量数据,难于了解海域泥沙含量分布、变化的全貌.遥感定量方法可在很大程度上克服这一局限性,因此近年来受到广泛重视,国内外已用MSS资料进行了大量研究.1984年,笔者在参加在杭州湾的遥感实验中,采用目前主要用于气象研究的AVHRR数据进行了测定悬浮泥沙含量的试验.结果表明,该资料用于测定含沙量可以达到较高的精度.
The investigation of the suspended sediment content is of great significance to the research on the water quality, topography and environment of the estuarine coastal zone, as well as the coastal engineering and port construction. However, the general ship-based survey method can only obtain a small amount of data which is very discrete in time and space , It is difficult to understand the distribution of sediment content in the sea and the whole picture of the change.Remote sensing quantitative method can largely overcome this limitation and has been widely valued in recent years and a great deal of research has been done by MSS data both at home and abroad.In 1984, To participate in the remote sensing experiments in Hangzhou Bay, the suspended sediment concentration was measured by AVHRR data, which is mainly used for meteorological research at present. The results show that this data can be used to determine the sediment concentration can achieve higher accuracy.