| 为森林资源动态监测的TM影像标准化* |
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| 引用本文： | 张玉贵.为森林资源动态监测的TM影像标准化*[J].林业科学研究,1995,8(2):139-144. |
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| 作者姓名： | 张玉贵 |
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| 作者单位： | 中国林业科学研究院资源信息研究所 |
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| 基金项目： | 1991年国家自然科学基金 |
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| 摘 要： | 对ＴＭ卫星影像做综合大气校正，可获得地物反射率影像。大气参数是由当地气象记录的内插值导出，再以像幅内黑暗地物做调整。地形模型既可用来调整各参量随高程的变化，又用以校正辐射的地形效应。当无地形模型时，可由卫星影像本身提取入射角。校正后影像便于做资源信息的多时相比较，即动态监测。还可应用校正过程中生成的参数，做林地及其它再生资源的各生物指标的计算。
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| 关 键 词： | 遥感，数字图像处理，大气校正 |
| 收稿时间： | 1994/10/17 0:00:00 |
Standardiztion of Landsat TM Imagery for Forest Resources Dynamic Change Monitoring |
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| Zhang Yugui.Standardiztion of Landsat TM Imagery for Forest Resources Dynamic Change Monitoring[J].Forest Research,1995,8(2):139-144. |
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| Authors: | Zhang Yugui |
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| Institution: | The Research Institute of Forest Resources Information Techniques, CAF Beijing 100091 |
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| Abstract: | The paper described an atmospheric correction method for LANDSAT TMimagery.
The dynamic change monitoring of vegetation coverage and the variability of atmo-spheric
conditions necessitate the normalization or standardization of satellite imagery.
Theatmospheric parameters at overpass time were evaluated through interpolation among
localmeteorological records. The digital model is used to adjust the variation of illumination
pa- rameters with elevation ,and to correct for the topographic effect. The corrected imagery
canbe suitably used for multitemporal monitoring of renewable resources. |
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| Keywords: | remote sensing digital image processing atmospheric correction |
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