1. State Key Laboratory Incubation Base of Urban Environmental Processes and Digital Simulation, Capital Normal University, Beijing 100048, China 2. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China 3. Beijing Key Laboratory of Resource Environment and Geographic Information System, Capital Normal University, Beijing 100048, China
Abstract：Current atmospheric correction of HJ-1 CCD does not take the aerosol models of Chinese specific regions into consideration. This paper proposes a method of atmospheric correction coupling local aerosol models. Choosing Beijing-Tianjin-Hebei region as the study area, aerosol model parameters of the method on the foundation of AERONET inversion are analyzed and four types of aerosol model parameters of Beijing-Tianjin- Hebei regions are clustered to build the lookup table for the inversion of aerosol optical thickness. Lack of SWIR (2.12 μm) in the bands of HJ-1 CCD , the blue(0.43~0.52 μm) and red(0.63~0.69 μm) cannot be calculated like the MODIS. So the ratio of blue and red is used as the basis of error equation for aerosol optical depth retrieval, with no need of ground target reflectance. HJ-1 CCD data after atmospheric correction are compared with MODIS surface product data (MOD09) and ASD measurements. The results show that the reflectance obtained by the atmospheric correction is close to the ASD measurement results, and there is a strong correlation with MOD09, the average correlation coefficient in the red band reached more than 0.8, the one of blue band affected by molecule mostly is up to 0.75.
[1] Hadjimitsis D G, Clayton C R I，Hope V S. International Journal of Remote Sensing, 2004, 25(18): 3651. [2] Liang S, Fang H，Chen M. IEEE Transactions on Geoscience and Remote Sensing, 2001, 39(11): 2490. [3] Hadjimitsis D G, et al. Natural Hazards and Earth System Science, 2010，10(1): 89. [4] ZHAO Ying-shi, et al(赵英时，等). Principles and Methods of Remote Sensing Application and Analysis(遥感应用分析原理与方法). Beijing：Science Press(北京：科学出版社)，2013. 502. [5] WANG Ai-chun, et al(王爱春，等). Science China: Information Sciences(中国科学: 信息科学), 2011，(S1): 76. [6] SUN Chang-kui, et al(孙长奎, 等). Journal of Remote Sensing(遥感学报), 2012, (4): 826. [7] Vermote E F, et al. IEEE Transactions on Geoscience and Remote Sensing, 1997，35(3): 675. [8] FANG Li, et al(方 莉，等). Journal of Remote Sensing(遥感学报), 2013, (1): 151. [9] WANG Zhong-ting, et al(王中挺，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2014, 34(3): 729. [10] Kaufman Y J, et al. Journal of Geophysical Research, 1997，102(D14): 17051. [11] Levy R C, et al. Atmospheric Measurement Techniques Discussions, 2013，6(1): 159. [12] Levy R C, Remer L A，Dubovik O. Journal of Geophysical Research: Atmospheres, 2007，112(D13): . [13] Remer L A, et al. Journal of the Atmospheric Sciences, 2005，62(4): 947. [14] Kaufman Y J, et al. IEEE Transactions on Geoscience and Remote Sensing, 1997，35(5): 1286. [15] Evans K F，Stephens G L. Journal of Quantitative Spectroscopy and Radiative Transfer, 1991, 46(5): 413. [16] Tanre D, Herman M，Deschamps P Y. Applied Optics, 1981，20(20): 3676. [17] Lee K H，Kim Y J. Atmospheric Measurement Techniques, 2010, 3(6): 1771. [18] Omar A H. Journal of Geophysical Research, 2005，110(D10). [19] Mishchenko M I，Travis L D. Journal of Quantitative Spectroscopy & Radiative Transfer, 1998，60(3): 309. [20] SHENG Li, et al(盛 莉，等). Journal of Infrared and Millimeter Waves(红外与毫米波学报), 2013，(3): 277.
