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杭州湾高悬浮泥沙的实时快速遥感监测是河口沿岸水质保护的关键。本文利用杭州湾实测的高光谱及悬浮泥沙浓度数据,模拟高分1号卫星数据并分析不同波段组合的遥感反射率与悬浮物浓度之间的相关关系,开展杭州湾河口水体悬浮泥沙遥感反演模式的比较验证,得出适用于高分1号卫星的悬浮泥沙浓度的遥感反演模型,并利用该模型进行杭州湾河口跨海大桥水域悬浮泥沙浓度反演,研究发现跨海大桥对潮水稀释悬浮泥沙有一定影响,大桥两侧悬浮泥沙有明显差异。
The real-time rapid remote sensing monitoring of suspended sediment in Hangzhou Bay is the key to the protection of estuarine water quality. In this paper, the data of hyperspectral and suspended sediment concentrations measured in Hangzhou Bay are used to simulate the data of highscore No.1 satellite and to analyze the correlation between remote sensing reflectance and suspended matter concentration in different wavebands, to carry out remote sensing of suspended sediment in Hangzhou Bay estuary waters. The comparison and verification of inversion model, the remote sensing inversion model suitable for the concentration of suspended sediment in Highscores No.1 satellite was obtained, and the suspended sediment concentrations in the waters of Hangzhou Bay estuary bridge across the sea were retrieved by this model. The bridge has a certain impact on tidal water suspended suspended sediment, suspension silt on both sides of the bridge there are significant differences.