Abstract
In view of the current situation that the remote sensing inversion of suspended sediment is mainly based on low spatial resolution satellite data, sentinel-2 satellite data with resolution of up to 10m is used to retrieve the suspended sediment content in Harbin section of Songhua River. And the inversion model is established based on the measured data and remote sensing data. The results show that the fitting degree of b3/(B2 + B4) in the multi band ratio and the measured suspended sediment concentration is the highest, reaching 0.904. The results show that the average relative error between the inversion value and the measured value is 19.88%, and the root mean square error is 0.039g/l. The results show that the suspended sediment content of Songhua River is lower than that of other six rivers in China, and belongs to the less sand river. The sediment content on both sides of the bank is higher than that of the center of the river. In the wide river, the suspended sediment content is low, and the suspended sediment content is higher in the narrow area.
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