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

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2 2022—2024年LGBM订正前后的ERA5地表下行太阳辐射与地面观测值逐日变化(a)及测试集偏差(订正前后的ERA5数据减去地面观测)概率密度分布(b)
Fig.2 Daily variations of ERA5 surface downward solar radiation before and after LGBM correction with ground observations during 2022-2024 (a) and probability density distribution of test dataset biases (ERA5 data before and after correction minus ground observations)(b)