Title :
Numeric simulation of viewing geometry of multidirectional polarimeteric sensor influence on the retrieval of aerosols over land surfaces
Author :
Wang, Zhongting ; Chen, Liangfu ; Gu, XingFa
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
In this paper, based on the normalized polarized radiances at top of atmosphere (TOA) have been simulated with different viewing geometry (along-track viewing angle and viewing angle number), the aerosol optical depths (AOD) have been retrieved. The retrieved AODs have been used to analyze the best viewing geometry for the new multi-angle polarized camera design. The results show that the accuracy of AOD is better as the viewing angle number is getting more, but for along- track viewing angle, the accuracy of AOD does not increase while the along-track viewing angle range changes from plusmn40deg to plusmn60deg.
Keywords :
aerosols; atmospheric composition; polarimetry; aerosol optical depths; along-track viewing angle; land surfaces; multiangle polarized camera design; multidirectional polarimeteric sensor; normalized polarized radiances; viewing angle number; viewing geometry; Aerosols; Atmosphere; Atmospheric modeling; Geometrical optics; Geometry; Land surface; Numerical simulation; Optical polarization; Optical sensors; Solid modeling; AOD; aerosols over land surface; multi-directional polarimetric sensors; viewing geometry;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2007. IGARSS 2007. IEEE International
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-1211-2
Electronic_ISBN :
978-1-4244-1212-9
DOI :
10.1109/IGARSS.2007.4423448
