Solar Elevation Angle's Effect on Image Energy and Its Correction

Journal of Atmospheric and Environmental Optics ›› 2013, Vol. 8 ›› Issue (1): 11-17.

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Solar Elevation Angle's Effect on Image Energy and Its Correction

LI Lin1,2, HU Yong1, GONG Cai-lan1, ZHU Ling-ya3, HE Hua-ying3

(1 Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China;
2 University of Chinese Academy of Sciences, Beijing 100049, China;
3 China Centre for Resources Satellite Data and Application, Beijing 100094, China)

Online:2013-01-28 Published:2013-01-07

Abstract

Abstract:

In the process of atmospheric radiative transmission in the visible light band, the measured value of sun angle changed along with the remote sensor’s position, and the images received different energy. The basic concepts of solar elevation angle are illustrated and radiative transfer mode code Motran5 is used to quantitatively analyze the difference of energy with various solar elevation angle. By summarizing the method of solar elevation angle correction of other scholars, a model of radiance between different solar elevation angle and 0° sun elevation angle is built by numerical simulation method, a correction method is put forward by means of the model. A comparison between correction and 0° radiance is carried out, relative error of less than 1% shows that the correction is desirable.

Key words: solar elevation angle/ solar zenith angle, atmospheric radiative transfer mode, correction result

CLC Number:

P422

LI Lin, HU Yong, GONG Cai-Lan, ZHU Ling-Ya, HE Hua-Ying. Solar Elevation Angle's Effect on Image Energy and Its Correction[J]. Journal of Atmospheric and Environmental Optics, 2013, 8(1): 11-17.

References

[1] Schott J R. Remote Sensing, the Image Chain Approach [M]. Rochester Institute of Technology, New York: Oxford University Press, 1997.
[2] Mao Kebiao, Qin Zhihao. The transmission model of atmospheric radiation and the computation of transmittance of MODTRAN [J]. Geomatics & Spatial Information Technology, 2004, 27(4): 1-3(in Chinese).
毛克彪, 覃志豪. 大气辐射传输模型及MODTRAN中透过率计算 [J]. 测绘与空间地理信息, 2004, 27(4): 1-3.
[3] Fei Yunxia, Wang Chunshun. Understanding and calculation method of the solar elevation angel [J]. Management & Technology of SMEs, 2008, (1): 116-117(in Chinese).
费云霞, 王春顺. 对太阳高度角的了解及其计算方法 [J]. 中小企业管理与科技, 2008, (1): 116-117.
[4] Huang Xiaoyuan, Luo Hui, Zhou Ruliang. Correction solar zenith angle for MODIS reflectance based on Solar Zenith [J]. Computer Development and Application, 2008, 21(6): 10-11(in Chinese).
黄晓园, 罗辉, 周汝良. 基于SolarZenith对MODIS反射率太阳天顶角校正的实现 [J].电脑开发与应用, 2008, 21(6): 10-11.
[5] Zhou Jingwen, Zhou Ruliang, Li Shaohui, et al. Research of MODIS L1B-level data radio metric correction and solar zenith correction [J]. Journal of Southwest Forestry University, 2010, 30(3): 77-81(in Chinese).
周靖雯, 周汝良, 李绍辉, 等. MODIS L1B数据的辐射定标及太阳天顶角订正研究 [J]. 西南林学院学报, 2010, 30(3): 77-81.
[6] Pei Hao, Fan Yida, Ao Yanqing. Solar elevation angle revised method of polar orbit meteorological satellite data [J]. Meteorology Journal of Inner Mongolia, 1998, (2): 22-23(in Chinese).
裴浩, 范一大, 敖艳青. 极轨气象卫星资料太阳高度角订正方法 [J]. 内蒙古气象, 1998, (2): 22-23.
[7]Wolf R E, Roy D P, Vermote E. MODIS land data storage, ridding, and composition methodology: Level 2 Grid [J]. IEEE Transaction on Geoscience and Remote Sensing, 1998, 36(4): 1324-1338.
[8]Zhang L Y. The format of EOS/MODIS 1B dataset [R]. Beijing: National Satellite Meteorological Center, 1999.

Solar Elevation Angle's Effect on Image Energy and Its Correction

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