作者: Howard R. Gordon , Tao Du , Tianming Zhang
DOI: 10.1364/AO.36.006938
关键词: Radiance 、 Remote sensing 、 Atmospheric correction 、 Linear polarization 、 Polarization (waves) 、 Ocean color 、 Materials science 、 Circular polarization 、 Rayleigh scattering 、 Diffuse sky radiation 、 Optics
摘要: We provide an analysis of the influence instrument polarization sensitivity on radiance measured by spaceborne ocean color sensors. Simulated examples demonstrate retrieval water-leaving reflectance ρw. A simple method for partially correcting sensitivity—replacing linear properties top-of-atmosphere reflectance with those from a Rayleigh-scattering atmosphere—is provided and its efficacy is evaluated. It shown that this scheme improves ρw retrievals as long does not vary strongly band to band. Of course, complete polarization-sensitivity characterization sensor required implement correction.