《Table 2 Correlation coefficient of different band ratio models for different satellites》

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《Comparative Study on Coastal Depth Inversion Based on Multi-source Remote Sensing Data》

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Notes:B，G，R are the abbreviation for the band of blue，green and red，respectively.NIR is the band of near infrared

In this study，we build six band ratio models with blue，green，red，and near-infrared bands.The parameters of the band ratio model are regression analyzed by using the attribute information of measured points of the water depth which includes the reflectance value and water depth of each band of the image.Correlation coefficient is shown in Table 2.It can be seen from table that the correlation coefficient of blue-near-infrared band ratio model of Landsat-8 image is the highest，and R2 is equal to 0.5073；the correlation coefficient of green-red band ratio model of SPOT-6 is the highest，and R2 is equal to 0.7064；the correlation coefficient of blue-green band ratio model of WorldView-2 is the highest，and R2 is equal to 0.6679（Fig.5）.Thus，we choose the above models as the final models to inverse the water depth.