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河口悬浮泥沙反射率渡谱特性研究是悬浮泥沙遥感定量分析的基础工作。不同水域悬浮泥沙物质成份、粒径分布和浓度的不同,其相应的反射率波谱特性也有所差异。对此,国内外尚未建立起具有普适型的算法模式,用以处理不同水域的悬浮泥沙遥感问题。鉴于此,我们于1991年9月6～11日对胶州湾大沽河口区进行了现场悬浮泥沙波谱特性实验。由此建立了大沽河口悬浮泥沙落度SSC与陆地卫星TM_3和TM_4渡段相应的光谱反射率之间的数学模式。经过相关分析和误差分析的检验证明,由模式计算所得结果是令人满意的。
The research on the spectral characteristics of suspended sediment reflectance in estuary is the basic work of quantitative analysis of suspended sediment remote sensing. The suspended sediment in different waters of the material composition, particle size distribution and concentration of the corresponding reflectance spectrum characteristics are also different. In response to this, no universal model has been established at home and abroad to deal with the problem of suspended sediment sensing in different waters. In view of this, we carried out on-site suspended sediment spectroscopy experiments on September 6-11, 1991 in Dagu estuary of Jiaozhou Bay. The mathematical model between the spectral reflectance of suspended sediment drop SSC of Dagu estuary and the satellite TM_3 and TM_4 of terrestrial satellite was established. After the relevant analysis and error analysis test proved that the results obtained by the model is satisfactory.