| 基于表观反射率的植被指数遥感监测 |
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| 引用本文： | 古丽给娜·塔依尔江,塔西甫拉提·特依拜,阿依提拉·吾加布都拉.基于表观反射率的植被指数遥感监测[J].新疆农业科学,2010,47(9). |
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| 作者姓名： | 古丽给娜·塔依尔江 塔西甫拉提·特依拜 阿依提拉·吾加布都拉 |
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| 作者单位： | 新疆大学资源与环境科学学院,乌鲁木齐,830046;绿洲生态教育部重点实验室,乌鲁木齐,830046 |
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| 基金项目： | 国家自然科学基金项目，高等学校博士学科点专项科研基金 |
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| 摘 要： | 【目的】随着遥感技术的迅速发展,遥感应用逐渐从定性走向定量。辐射定标是实现遥感信息定量化的基本前提,表观反射率是辐射定标的结果之一。【方法】对辐射定标过程参数的确定和表观反射率的计算等方面进行论述。【结果】以2008年的Landsat-5 TM的遥感数据为基础,计算表观反射率,从光谱响应曲线、归一化植被指数等方面,对原图像和表观反射率图像进行比较及其分析。【结论】由表观反射率图像计算出的NDVI值比原始图像NDVI大。
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| 关 键 词： | 辐射定标 表观反射率 植被指数 |
Remote Sensing Monitoring of NDVI Based on Apparent Reflectance |
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| Guligeina·Tayierjiang,Taxifulati·Teyibai,Ayitila·Wujiabudula.Remote Sensing Monitoring of NDVI Based on Apparent Reflectance[J].Xinjiang Agricultural Sciences,2010,47(9). |
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| Authors: | Guligeina·Tayierjiang Taxifulati·Teyibai Ayitila·Wujiabudula |
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| Abstract: | 【Objective and Method】With the rapid development of remote sensing technology,remote sensing application tends to change from qualitative to quantitative.Radiometric calibration is a basic precondition for achieving quantitative remote sensing,apparent reflectance is one of the results of radiometric calibration.In this paper concepts about radiometric calibration and apparent reflectance and relationships between them were discussed.【Result】According to the remote sensing data of Landsat-5 TM image of 2008,this paper calculated the apparent reflectance,analysed the change between original image and apparent reflectance image based on NDVI.【Conclusion】The NDVI of apparent reflectance image is greater than that of original image. |
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| Keywords: | radiometric calibration apparent reflectance NDVI |
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