1. Institute of Remote Sensing Applications of Chinese Academy of Sciences, Beijing 100101, China 2. Administration on Science, Technology, and Industry for National Defense, Beijing 100037, China
Abstract：With the development of the quantitative researches using ocean color remote sensing data sets, study on reducing the uncertainty of the response of the ocean color remote sensors to the polarization characteristics of the target has been attracting more and more attention recently. Taking MODIS as an example, the polarization distribution in the whole field of view was analyzed. For the atmosphere path radiance and the apparent radiance considering the coupling between ocean surface and atmosphere, the polarization distribution has a strong relation with the imaging geometry. Compared to the contribution of the polarization from the rough sea surface, the contribution from the atmosphere is dominated. Based on the polarization characteristics in the field of view, the influence of the polarization coupling error on the quality of the satellite data was studied with the assumption of different polarization sensitivities. It was found that errors due to polarization sensitivity in the field of view are lower than water leaving radiance only when the polarization sensitivity is less than 2%. And in this case it can meet the need of the retrieval of water leaving radiative products. The method of the compensation for the polarization coupling error due to the atmosphere is proposed, which proved to be effective to improve the utilization of satellite data and the accuracy of measured radiance by remote sensor.
Key words：Ocean color remote sensing;Polarization characteristics;Polarization sensitivity;Compensation of the polarization coupling error;Vector radiative transfer
[1] HAN Xin-zhi, SUN Yan-ping, SONG Ning(韩心志，孙燕萍，宋 宁). Space Electronic Technology(空间电子技术)，2004，(3): 16. [2] Gordon H R, Du T, Zhang T. Applied Optics, 1997，36: 6938. [3] Meister G, Kwiatkowska E, Franz B A, et al. J. Appl. Optics, 2005, 44(26): 5524. [4] Robert C L, Lorraine A R, Yoram J K. IEEE Transactions on Geoscience and Remote Sensing, 2004, 42(11), 2576. [5] Vermote Eric, Tanre D, Deuze J L, et al. IEEE Trans. Geosci. Remote Sens., 1997, 35: 675. [6] Kotchenova S Y, Vermote E F, Matarrese R, et al. Applied Optics, 2006, 45(26): 6726. [7] Kotchenova S Y, Vermote E F. Applied Optics, 2007, 46(20): 4455. [8] Koepke P. Applied Optics, 1984, 23(11): 1816. [9] GAO Jun, MA Jun(高 军, 马 骏). Spacecraft Recovery & Remote Sensing(航天返回与遥感), 1999, 20(2): 17. [10] Conrad Wells. Proceedings of SPIE, 1994，2265: 239. [11] GAO Jun, WANG Shu-peng, FANG Li, et al(高 军，王舒鹏，方 莉，等). Spacecraft Engineering(航天器工程), 2011, 20(3): 44. [12] Baudoin A. The Current and Future SPOT Program. ISPRS Workshop Hanover, 1999. [13] Barnes R A, Eplee R E, Patt F S. J. Appl. Optics，1999, 38(21): 4649. [14] Franz B A, Werdell P J, Meister G, et al. Proceedings of SPIE, 2005, 5882: 1. [15] Young J B, Knight E, Merrow C. Proc. SPIE，1998，3439, Earth Observing Systems Ⅲ: 247.
