| 陆面温度反演算法——劈窗算法的敏感度分析 |
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| 引用本文： | 张霞,朱启疆,闵祥军.陆面温度反演算法——劈窗算法的敏感度分析[J].遥感学报,2000,4(1):8-13. |
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| 作者姓名： | 张霞 朱启疆 闵祥军 |
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| 作者单位： | 香港理工大学土地测量与地理资讯学系,香港九龙;同济大学测量与国土信息工程系,上海200092;香港理工大学土地测量与地理资讯学系,香港九龙;同济大学测量与国土信息工程系,上海200092 |
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| 基金项目： | 香港大学资助委员会研究基金(编号:Polyu5093);国家自然科学基金(编号:49671065) |
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| 摘 要： | 劈窗算法是目前由热红外遥感图像数据获取陆面温度最主要的方法。由于进行地面像元尺度实时陆面温度同步测量的困难，尚无法直接对现有各劈窗算法进行评判。该文借助于辐射传输模型ＬＯＷＴＲＡＮ－７及其提供的６种标准大气模式，进行模拟计算，分析了６种主要劈窗算法对大气廓线误差和比辐射率的敏感度，作为劈窗算法适用性的一间接判据。
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| 关 键 词： | 陆面温度 比辐射率 辐射传输模型 敏感度 大气 |
| 收稿时间： | 1998/7/17 0:00:00 |
| 修稿时间： | 7/2/1999 12:00:00 AM |
Analysis of Sensibility on Split-window Algorithms for Retrieving Land-surface Temperature |
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| ZHANG Xi,ZHU Qi jiang and MIN Xiang jun.Analysis of Sensibility on Split-window Algorithms for Retrieving Land-surface Temperature[J].Journal of Remote Sensing,2000,4(1):8-13. |
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| Authors: | ZHANG Xi ZHU Qi jiang and MIN Xiang jun |
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| Affiliation: | Department of Land Surveying & Geo Informatics, The Hong Kong Polytechnic University, China; Department of Surveying and Geomatics, Tongji University, Shanghai 200092, China;Department of Land Surveying & Geo Informatics, The Hong Kong Polytechnic University, China;Department of Surveying and Geomatics, Tongji University, Shanghai 200092, China |
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| Abstract: | This paper presents two models for describing error of transition curve features based on error of points on the curve. The error nature of such a curve depends on variance covariance matrices of endpoints. The first error model is based on root mean square error in normal direction of the transition curve. The second model is based on error in the maximum direction of the curve. Theoretically, the error model of maximum direction is more rigorous for describing error of transition curve lines. The error model of normal direction is a simplified model of the previous one and is widely used in describing error of straight lines. |
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| Keywords: | error model GIS transition curve feature |
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