How to calculate path length using sentinal ! image?

[basir]

based in some discussion i realized that the incidence angle which i got is incorrect,

Incidence angle_Sentinel 1 image

Hi johngan, I am recently trying to do this incidence angle normalization using the equation in the article you recommended. But I am confused. Could you please help me out? As you said, as the incidence angle gets wider, the brightness of the images gets progressively darker, which means a smaller backscatter (db) for larger incidence angle (for example 40 degree). Since cos(40degree) is smaller than cos(35degree), which means when applying the equation [image] , backscatter for a new incidenc…