基于随机森林的降水产品降尺度及其水文适用性评估

陈多妍, 史岚

Downscaling of precipitation products based on the random forest and assessment of their hydrologic applicability

CHEN Duoyan, SHI Lan

表4 弋阳站GPM,RF1,RF2径流模拟精度评估

Tab.4 Evaluation of hydrological simulation accuracy of GPM,RF1 and RF2 in Yiyang Station

场次 参数 GPM RF1 RF2 场次 参数 GPM RF1 RF2 率 定 期 20180410 RNS 0.697 0.689 0.499 20190423 RNS 0.806 0.851 0.546 RCC 0.892 0.870 0.754 RCC 0.915 0.938 0.854 20180511 RNS 0.870 0.909 0.751 20190516 RNS 0.509 0.643 -0.459 RCC 0.943 0.959 0.937 RCC 0.877 0.904 0.855 20180526 RNS 0.427 0.495 0.304 20190531 RNS 0.703 0.791 0.822 RCC 0.764 0.779 0.874 RCC 0.887 0.898 0.907 20180610 RNS 0.414 0.433 0.631 20190617 RNS 0.218 0.363 -0.196 RCC 0.836 0.836 0.936 RCC 0.800 0.854 0.724 20180630 RNS 0.644 0.667 0.367 20190703 RNS 0.377 0.435 0.523 RCC 0.965 0.970 0.883 RCC 0.788 0.790 0.746 20190401 RNS 0.712 0.788 -0.117 RCC 0.910 0.923 0.848 验 证 期 20200418 RNS -0.169 0.062 -0.658 20200608 RNS 0.289 0.773 0.110 RCC 0.727 0.709 0.746 RCC 0.956 0.972 0.947 20200509 RNS -3.681 -1.988 -4.469 20200629 RNS 0.600 0.610 0.618 RCC 0.163 0.312 0.166 RCC 0.879 0.872 0.867 20200524 RNS 0.608 0.712 0.893 RCC 0.977 0.963 0.989