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基于地表类型的TM6波段像元分解方法

DOI: 10.6046/gtzyyg.2012.03.11, PP. 54-59

Keywords: 像元分解,三次卷积插值,单窗算法,邻近效应

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Abstract:

先利用TM其他波段信息,将TM6波段的像元空间分辨率由120m提高至30m,对各子像元进行地类划分;再结合不同地表类型的热惯量特性,确定出每个子像元占原像元的权重和该子像元的辐射亮度;然后用单窗算法反演其温度,得到研究区地表温度的空间分布。对比三次卷积插值重采样反演地表温度的方法,该方法能更好地反演地表温度的空间分布特征。

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