Inspection and Evaluation of CLDASV2.0 Hourly Temperature Products in Baoji
Based on all the observation data from national automatic stations and regional automatic stations in Baoji,the accuracy,mean error,mean absolute error,and root mean square error were used to evaluate the hourly temperature grid data(grid observations)of the China Meteorological Administration Land Data Assimilation Sys-tem V2.0(CLDAS V2.0)in Baoji from 2019 to 2022.The results show that the accuracy of the national automatic stations in grid observations is better than regional automatic stations.While the mean error,mean absolute error,and root mean square error of the national automatic stations in grid observations are lower than those of the re-gional automatic stations.In national automatic stations,the grid observation has higher quality for Weibin,Chen-cang,Qianyang,Linyou,and Fengxiang stations.The grid observations have the highest quality in September and October,and the lowest quality in March and April.The mean error of the grid observations in most areas of Baoji is between-2～2℃,with the highest quality in the fourth quarter.
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