基于机器学习订正ERA5的甘肃省地表太阳辐射时空分布 |
| 吴欣华, 王思晨, 王菲菲, 王天河, 杜源, 陈涛, 牛亮亮, 赵怀宇, 张昊天 |
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Spatiotemporal distribution of surface solar radiation in Gansu Province based on machine learning correction of ERA5 |
| WU Xinhua, WANG Sichen, WANG Feifei, WANG Tianhe, DU Yuan, CHEN Tao, NIU Liangliang, ZHAO Huaiyu, ZHANG Haotian |
| 图1 未订正及不同机器学习方法订正的2022—2024年ERA5逐小时地表下行太阳辐射与地面站点观测值的散点图 (a)未订正,(b)LGBM订正,(c)RF订正,(d)SVM订正 (黑色实线为1∶1基准线,灰色阴影表示高斯核密度估计值) |
| Fig.1 Scatter plots of hourly ERA5 surface downward solar radiation against in-situ observations before correction and corrected by different machine learning methods during 2022-2024 (a) Uncorrected,(b) LGBM-corrected,(c) RF-corrected,(d) SVM-corrected (The black solid line indicates the 1∶1 reference line,and the gray shading represents the gaussian kernel density estimate) |
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