| 高程和大气模式对FLAASH模型校正结果的影响 |
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| 引用本文： | 李述,刘琪璟. 高程和大气模式对FLAASH模型校正结果的影响[J]. 遥感技术与应用, 2015, 30(5): 939-945. DOI: 10.11873/j.issn.1004-323.2015.5.0939 |
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| 作者姓名： | 李述 刘琪璟 |
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| 作者单位： | (1.南昌大学鄱阳湖环境与资源利用教育部重点实验室,江西 南昌 30029;2.南昌大学资源环境与化工学院环境科学与工程系,江西 南昌 30031;3.北京林业大学林学院,北京 00083) |
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| 基金项目： | 国家自然科学基金“鄱阳湖湖泊蝶形湖泊群鱼类集合群落时空格局及其构建过程的初步研究”（31260107），南昌大学“鄱阳湖环境与资源利用”教育部重点实验室开放基金资助项目（Z04407）,江西省自然科学基金资助项目（20132BAB203024）。 |
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| 摘 要： | 为探讨FLAASH大气校正模型对高程和大气模式参数的敏感性,以中纬度夏季和亚极地夏季大气模式过渡区的两景Landsat8 OLI遥感影像为基础,从高程、大气模式及其综合作用进行了对比分析。实验结果表明:①单景影像而言,FLAASH模型与高程和两种大气模式敏感性不强,各波段反射率平均值相差在0.21%以内;②在相邻两景影像重叠区,FLAASH模型与高程和大气模式敏感性明显加强,可见光波段反射率均值相差在0.5%~1.29%之间;③FLAASH模型能有效去除Landsat8影像的大气影响,并使图像信息增强,大气校正的作用效果在短波波段更加明显。
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| 关 键 词： | FLAASH模型 Landsat8 OLI 大气校正 |
| 收稿时间： | 2014-08-08 |
Effect on Atmospheric Correction by Ground Elevation and Antmoshyric modelparameters of FLAASH Model |
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| Li Shu,Liu Qijing. Effect on Atmospheric Correction by Ground Elevation and Antmoshyric modelparameters of FLAASH Model[J]. Remote Sensing Technology and Application, 2015, 30(5): 939-945. DOI: 10.11873/j.issn.1004-323.2015.5.0939 |
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| Authors: | Li Shu Liu Qijing |
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| Affiliation: | (1.Key Laboratory of Poyang Lake Environment and Resource Utilization,Ministry of Education,;Nanchang University,Nanchang 330029,China;;2.Department of Environmental Science and Engineering,School of Resources-Environment;and Chemical Engineer,Nanchang University,Nanchang 330031,China;;3.College of Forestry,Beijing Forestry University,Beijing 100083,China) |
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| Abstract: | In order to analyze the sensitivity of Atmospheric Model and Ground Elevation to FLAASH model,the effects of Ground Elevation and atmospheric Model in FLAASH Model were systematically analyzed with two landsat8 OLI images which located in atmospheric model transition area of Mid-Latitude Summer and Sub-Arctic Summer.Preliminary results showed that:① The average difference of reflectance image was less than 0.21% ,which revealed that FLAASH model isn’t sensitive to atmospheric Model and Ground Elevation in the case of a single image;② In overlapping region of the two neighboring images,the average difference of reflectance image increased from 0.5% to 1.29% in visible bands,which show that sensitivity of Atmospheric Model and Ground Elevation to FLAASH model significantly increased;③ The FLAASH model can not only eliminate the effect of atmospheric scattering and atmospheric absorption upon Landsat8 images,but also can enhance image information.The effect of atmospheric correction was obvious especially in shortwave bands. |
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| Keywords: | FLAASH model Landsat 8 Atmospheric correction |
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