SRTM1 DEM与ASTER GDEM V2数据的对比分析
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武文娇, 章诗芳, 赵尚民
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Analysis and Comparison of SRTM1 DEM and ASTER GDEM V2 Data
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WU Wenjiao,ZHANG Shifang,ZHAO Shangmin
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| 表2 基于坡度的SRTM1 DEM和ASTER GDEM V2的误差分布（m） |
| Tab. 2 Error distribution of SRTM1 DEM and ASTER GDEM V2 based on slope (m) |
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| 统计参数 | ≤3° | 3~8° | 8~15° | 15~5° | ≥25° | 全部 | | SRTM1 DEM | 平均误差 | 0.4 | 0.5 | 0.0 | -0.1 | 1.0 | 0.2 | | 绝对误差均值 | 1.4 | 2.7 | 4.3 | 5.3 | 7.6 | 4.0 | | 标准偏差 | 2.1 | 3.9 | 5.8 | 7.2 | 10.3 | 6.0 | | 均方根误差 | 2.2 | 3.9 | 5.8 | 7.2 | 10.4 | 6.1 | | ASTER GDEM V2 | 平均误差 | -0.2 | -0.6 | -0.4 | 0.4 | 2.6 | 0.1 | | 绝对误差均值 | 4.5 | 5.9 | 7.7 | 9.1 | 11.7 | 7.8 | | 标准偏差 | 6.1 | 8.0 | 10.2 | 11.9 | 14.8 | 10.7 | | 均方根误差 | 6.1 | 8.0 | 10.2 | 12.0 | 15.0 | 10.7 |
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