Method and device for determining ground surface temperature by utilizing remote sensing data of FY-3 meteorological satellite of China
A satellite remote sensing data, Fengyun-3 technology, applied in the field of remote sensing quantitative inversion, can solve the complex problems of surface temperature inversion
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[0053] Such as figure 1 Shown, specific embodiment of the present invention is as follows:
[0054] A method for determining the surface temperature using the remote sensing data of the China Fengyun-3 satellite, the implementation steps are as follows:
[0055] Step (A), using the visible light and near-infrared observation data of Fengyun-3 satellite to determine the surface emissivity, the implementation method is as follows:
[0056] A1. Calculate the NDVI values of all pixels in a scene image according to formula (1);
[0057] A2. When the NDVI value of the pixel in the image satisfies NDVI<0.2, calculate the surface emissivity values of the 4th and 5th channels of Fengyun-3 satellite in the bare soil area according to formula (2) and formula (3) respectively;
[0058] A3. When the NDVI value of the pixel in the image satisfies NDVI>0.5, calculate the surface emissivity values of the 4th and 5th channels of the Fengyun-3 satellite in the vegetation area according ...
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