title: [Simulation and analysis of polarization characteristics for real sea surface sunglint].
abstract: The sea surface sunglint is caused by specular reflectance. Water is a kind of dark target with a very low reflectance, so sunglint becomes a big noise in the aerial or aerospace remote sensing images; sunglint is strongly polarized, and can be a natural standard light source for polarized sensor in-flight calibration; sunglint also can be utilized to retrieve gaseous constituents and aerosol properties. For both de-noising and being standard light source, the radiative physic parameters should be calculated accurately. First, A 3-D sea surface model was constituted according to the Cox & Munk model; Second, the polarized radiative model of sunglint was deduced based on the 3-D sea surface model and polarized Fresnel reflectance law; Third, the sensitivities of solar-viewing relative azimuth, zenith, wind speed and wind direction were analyzed utilizing the polarized radiative model. The polarization characteristics analysis of sunglint provides a theoretical basis for the quantitative remote sensing retrievals which uses sunglint.
authors.affiliation: State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China. chenxf@irsa.ac.cn
authors.forename: Xing-Feng
authors.initials: XF
authors.lastname: Chen
authors.forename: Xing-Fa
authors.initials: XF
authors.lastname: Gu
authors.forename: Tian-Hai
authors.initials: TH
authors.lastname: Cheng
authors.forename: Zheng-Qiang
authors.initials: ZQ
authors.lastname: Li
authors.forename: Tao
authors.initials: T
authors.lastname: Yu
authors.forename: Dong-Hai
authors.initials: DH
authors.lastname: Xie