基于随机森林算法对青藏高原TRMM降水数据进行空间统计降尺度研究

徐彬仁, 魏瑗瑗

Spatial statistics of TRMM precipitation in the Tibetan Plateau using random forest algorithm

Binren XU, Yuanyuan WEI

表2 降水与其他变量的线性相关性

Tab.2 Linear correlation between precipitation and other variables

变量 TRMM NDVI DEM ll aspect slope lon lat TRMM 1.000 0.570 -0.277 0.788 0.001 0.432 0.398 -0.703 NDVI 0.570 1.000 -0.277 0.702 -0.022 0.280 0.682 -0.391 DEM -0.277 -0.277 1.000 -0.204 0.076 -0.086 -0.476 -0.171 ll 0.788 0.701 -0.203 1.000 -0.004 0.345 0.675 -0.780 aspect 0.001 -0.021 0.076 -0.004 1.000 0.009 -0.009 0.001 slope 0.432 0.280 -0.086 0.345 0.009 1.000 0.137 -0.318 lon 0.398 0.682 -0.476 0.675 -0.009 0.137 1.000 -0.074 lat -0.703 -0.391 -0.171 -0.780 0.001 -0.318 -0.074 1.000