基于两层随机森林模型估算中国东部沿海地区的PM2.5浓度
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杨立娟
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Estimating PM2.5 concentrations in eastern coastal area of China using a two-stage random forest model
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YANG Lijuan
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表1 建模参数的统计数据
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Tab.1 Statistics of parameters for model fitting
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| 变量 | 最小值 | 最大值 | 均值 | 标准差 | | PM2.5 /(μg·m-3) | 1.00 | 377.00 | 41.53 | 32.00 | | AOD | 0.01 | 2.20 | 0.26 | 0.18 | | PBLH/m | 63.38 | 2 227.65 | 940.37 | 941.88 | | PS/hPa | 918.60 | 1 034.00 | 1 003.20 | 1 007.00 | | RH/% | 13.50 | 100.00 | 62.30 | 64.30 | | T2 m/K | 269.80 | 310.20 | 294.90 | 296.00 | | T10 m/K | 269.40 | 309.30 | 294.20 | 295.30 | | Ts/K | 271.90 | 320.80 | 297.70 | 298.90 | | U10 m/(m·s-1) | -11.44 | 9.04 | -0.79 | -0.95 | | U-component/(m·s-1) | -15.35 | 14.36 | -1.07 | -1.38 | | V10 m/(m·s-1) | -17.95 | 11.59 | -0.23 | -0.18 | | V-component/(m·s-1) | -24.14 | 18.07 | -0.40 | -0.42 | | vegetationcover | 0.00 | 0.87 | 0.35 | 0.33 | | roaddensity/(km·km-2) | 0.11 | 2.31 | 1.13 | 1.05 |
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