高海拔复杂地形区SPOT6图像大气校正方法对比及精度验证
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申振宇, 高小红, 汤敏
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Comparison and accuracy verification for atmospheric correction of SPOT6 image in high altitude complex terrain area
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Zhenyu SHEN, Xiaohong GAO, Min TANG
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表2 大气校正前后整景和分区地表反射率结果
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Tab.2 Surface reflectance results of whole scenes and zones before and after atmospheric correction
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范围 | 波段 | TOA | GRD6S模式 | AVG6S模式 | FLAASH模式 | Landsat8 SR | Std | RE/% | Std | RE/% | Std | RE/% | Std | RE/% | Std | 整景 | 蓝 | 0.022 7 | 113.60 | 0.028 8 | 14.36 | 0.030 9 | 2.79 | 0.028 1 | 33.04 | 0.020 4 | 绿 | 0.026 0 | 30.60 | 0.032 2 | 11.29 | 0.033 4 | 7.97 | 0.031 4 | 10.56 | 0.026 0 | 红 | 0.039 3 | 20.70 | 0.047 0 | 0.92 | 0.047 4 | 1.62 | 0.044 8 | 12.29 | 0.038 9 | 近红外 | 0.057 8 | 6.24 | 0.066 6 | 3.01 | 0.066 0 | 1.91 | 0.064 3 | 1.15 | 0.068 5 | 高山区 | 蓝 | 0.012 8 | 145.36 | 0.016 5 | 27.59 | 0.017 7 | 37.38 | 0.016 5 | 23.93 | 0.015 5 | 绿 | 0.016 0 | 38.14 | 0.019 7 | 14.04 | 0.020 8 | 18.84 | 0.019 8 | 8.66 | 0.020 1 | 红 | 0.023 0 | 35.85 | 0.027 0 | 1.25 | 0.028 0 | 5.20 | 0.026 8 | 8.06 | 0.025 0 | 近红外 | 0.060 3 | 7.00 | 0.068 1 | 0.73 | 0.068 8 | 1.42 | 0.067 2 | 2.65 | 0.084 8 | 农村地区 | 蓝 | 0.013 4 | 134.11 | 0.018 7 | 28.69 | 0.018 5 | 6.68 | 0.017 6 | 38.24 | 0.015 0 | 绿 | 0.017 0 | 32.80 | 0.022 0 | 14.76 | 0.021 9 | 8.41 | 0.021 2 | 11.54 | 0.017 9 | 红 | 0.027 5 | 26.31 | 0.033 9 | 3.70 | 0.033 3 | 0.07 | 0.032 3 | 14.69 | 0.028 0 | 近红外 | 0.056 9 | 8.28 | 0.066 6 | 2.32 | 0.064 5 | 0.46 | 0.064 0 | 2.97 | 0.054 1 | 城区 | 蓝 | 0.023 5 | 74.09 | 0.035 8 | 4.15 | 0.031 8 | 14.94 | 0.030 5 | 23.93 | 0.027 5 | 绿 | 0.029 4 | 19.26 | 0.040 9 | 7.24 | 0.037 5 | 0.37 | 0.036 5 | 8.66 | 0.034 7 | 红 | 0.044 1 | 9.43 | 0.056 6 | 3.19 | 0.052 8 | 5.03 | 0.051 2 | 17.23 | 0.048 3 | 近红外 | 0.045 0 | 7.43 | 0.055 2 | 3.40 | 0.051 7 | 0.00 | 0.050 5 | 1.79 | 0.049 4 |
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