| 卫星遥感大气订正的参数化模式及其模拟应用 |
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| 引用本文： | 邱金恒.卫星遥感大气订正的参数化模式及其模拟应用[J].遥感学报,2001,5(6):401-406. |
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| 作者姓名： | 邱金恒 |
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| 作者单位： | 中国科学院大气物理研究所, |
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| 基金项目： | 本研究为国家863-308主题资助项目. |
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| 摘 要： | 发展了一个用于卫星大气订正的参数化模式,包括一个新的程辐射亮度模式和一个参数化的朗伯地表一大气辐射耦合引起的亮度增量模式.应用最小二乘法,程辐射亮度被参数化为大气总光学厚度、一次散射反照率、太阳天顶角、视天顶角、方位角、大气不对称因子的函数.应用这一参数化的亮度模式进行大气订正应用的数值模拟,即进行卫星遥感地表光谱反照率的模拟试验.数值检验结果表明对于865 nm,670nm,550nm和412nm 4个MODIS通道,在0°-70°的太阳天顶角、0°-60°视观测角以及0.05-0.8的地表反照率条件下,参数化的向上辐射亮度的标准差小于4%,由该参数化亮度模式引起的地表反照率解的标准差小于0.03.
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| 关 键 词： | 辐射亮度 参数化模式 地表反照率 卫星遥感 亮度增量模式 大气订正 大气遥感 最小二乘法 |
| 文章编号： | 1007-4619(2001)06-401-06 |
| 收稿时间： | 2000/11/15 0:00:00 |
| 修稿时间： | 2000年11月15 |
A Parameterized Atmospheric Correction Model and its Application Simulation for Satellite Remote Sensing |
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| QIU Jin-huan.A Parameterized Atmospheric Correction Model and its Application Simulation for Satellite Remote Sensing[J].Journal of Remote Sensing,2001,5(6):401-406. |
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| Authors: | QIU Jin-huan |
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| Institution: | Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China |
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| Abstract: | A simple but accurate model of the upwelling solar radiance is of great significance for the atmospheric
correction in the case of satellite remote sensing of surface parameters. In this paper, a parameterized atmospheric
correction model is developed for satellite remote sensing applicatioin, which includes two newparameterization models of
the path radiance and Lambertian surface-atmospheric coupled radiation. By using least square technology, the
parameterized path radiance is expressed in terms of atmospheric optical depth, single scattering albedo, solar zenith
angle, viewing zenith angle, azimuth angle, atmospheric asymmetry factor. Furthermore, the model is used in retrieving
surface reflectance from simulated satellite data. As shown in numerical simulations, for four MODIS channels of 865
nm, 670 nm, 550 nm and 412 nm, the solar zenith angle from0°to 70°, the viewing zenith angle of 0°to 66°, and the
surface reflectance of 0.05 to 0.8, standard errors of the parameterized upwelling radiance and the reflectance solutions
are less than 4% and 0.03, respectively. |
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| Keywords: | radiance parameterization surface reflectance |
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