About the Transferability of Topographic Correction Methods From Spaceborne to Airborne Optical Data

In rugged terrain, topography substantially influences the illumination and observation geometry, thus, bidirectional reflectance distribution function (BRDF) of a surface. While this problem has been known investigated for spaceborne optical data since 1980s, it led to several well-known topographic correction methods. To date, methods developed were equivalently applied airborne with distinctly higher spatial resolution, illumination/observation angle configurations finally (instantaneous) field view (FOV). On one hand, article evaluates, whether such transfer from acquisitions is reasonable. other new Lambertian/statistical-empirical method introduced. in case Modified Minnaert (MM) Statistical-Empirical (SE) performed best, MM statistically visually best compromise data. Our results suggest further that resolution various effects come into play (FOV widening; changing fraction geometric, volumetric isotropic scattering, etc.), compromising previously successful methods, as SE method.