Crop growth monitoring method based on inverse Gaussian process inversion of leaf area index
A technology of leaf area index and inverse Gauss, which is applied in the field of agricultural remote sensing to improve the inversion accuracy, avoid the same effect of multiple parameters, and avoid the effect of different parameters.
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[0045] Hengshui was selected as the research area, and the wheat growth in the research area was monitored from January 2018 to June 2018.
[0046] S1. Use the sensor indifferent atmospheric correction method SIAC to obtain a consistent Sentinel 2 surface reflectance; the SIAC described in step S1 is a method invented by Yin Feng, and its code is published on the GitHub platform at https: / / github.com / Marc Yin / SIAC.
[0047] S2. Using the time series data of Sentinel 2 surface reflectance corresponding to the sample points, extract each key growth period of wheat, and perform supervised classification to obtain the spatial distribution map of crops in the study area.
[0048] S3. Extensive sampling is performed on the PROSAIL model parameter set corresponding to the crop to obtain the crop spectrum simulated by PROSAIL under the black soil background and the crop spectrum simulated by PROSAIL under the background of soil information.
[0049]The specific method is: according ...
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