The analysis of sensibility to the change of the input parameters in the 6S model

摘要

The input data necessary to correct the atmospheric effect are often of a very difficult access and their precision is quite low. For this reason, it is rather important to know how each of the input parameters influence the atmospheric correction process and the output image.In this study we report the results of the sensibility analysis of the 6S model (Second Simulation of the Satellite Signal in the Solar Spectrum), which is one of the atmospheric correction algorithms, to changes in the input parameters. We have analyzed four input parameters describing atmospheric conditions in which the image was taken. 72.000 atmospheric corrections have been made on the different sets of input parameters. Next, on the basis of the images that were the result of the atmospheric corrections, for each test field and spectral band a regression model has been created and analyzed with eta and partial eta squared measurements. Thus the importance of the input parameters as the function of the wavelength and digital number of the input image were obtained.