光学遥感大气订正模型及其相关问题分析
Models and Its Analysis about the Atmospheric Correction of Optical Remote Sensing Imagery
查看参考文献26篇
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文摘
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首先说明了大气的影响作用和大气订正的必要性.接着总结了大气订正的基本问题：侧重分析了大气订正的模型和反演方法;还包括大气、气溶胶参数的反演;辐射传输软件用于大气订正函数的计算;邻近效应的处理;查找表的创建;大气订正的精度分析等. |
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其他语种文摘
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In this paper, the effect of atmospheric impact and the requirement for atmospheric correction is explained firstly. Then the universal problems about atmospheric correction are expatiated. Atmospheric correction includes two major steps. The first step of atmospheric correction is retrieval of the concentrations of atmospheric molecules and aerosol. The method about retrieval of water vapor and aerosol is discussed. The radiative transfer programs （softwares） such as MODTRAN, 6S,SBDART, are commonly used in the calculation of atmospheric correction functions, the methods for calculation of atmospheric correction functions is also reviewed. The second step of atmospheric correction is surface reflectance retrieval from model. Several models to describe the bounces between atmosphere and surface are summarized. As for all the atmospheric parameters, the retrieval of surface reflectance is relatively straightforward when the surface is assumed to be lambertian. The retrieval of surface reflectance from surface which is heterogeneous and non-lambertian is also discussed. The method for dealing with adjacency effect, the creation of look-up table, and the precision analysis for the atmospheric correction result are summarized in the rest of the paper, too. |
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来源
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地球信息科学
,2005,7(4):33-38 【扩展库】
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关键词
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大气订正
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光学
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遥感
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进展
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模型
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地址
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1.
国家环保总局环境卫星中心筹备办公室, 北京, 100029
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北京师范大学地理学与遥感科学学院, 遥感科学国家重点实验室, 北京, 100875
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1560-8999 |
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学科
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大气科学(气象学) |
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基金
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国防科工委项目
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国家863计划
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文献收藏号
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CSCD:2130643
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