气象与环境学报2026，Vol.42Issue(1)：85-94,10.DOI:10.3969/j.issn.1673-503X.2026.01.009
公里级再分析资料相对湿度在湖北的适用性评估
Applicability evaluation of relative humidity in kilometer level reanalysis data in Hubei Province
摘要
Abstract
Using observation data from 82 national meteorological stations in Hubei Province,this study evaluates the applicability of daily average,daily maximum,and daily minimum relative humidity of CARAS-1km(China Atmospheric Realtime Analysis Products)reanalysis data from 2008 to 2021 in Hubei Province by analyzing indi-cators such as correlation coefficient,root mean square error(RMSE),and mean bias(MB),and further explores the applicability of the five parts in Hubei Province in different seasons.The results show that:CARAS has good applicability in the Hubei region for daily average and minimum relative humidity,with spatial correlation coeffi-cients of 0.91 and 0.94,respectively;The daily average relative humidity is mainly positive deviation,while the daily minimum and maximum relative humidity are mainly negative deviation;The daily average,daily maximum,and daily minimum relative humidity have good applicability in the southwestern region of Hubei.The applicability of daily average and daily minimum relative humidity(from April to October)is good,while the situation of daily maximum relative humidity is opposite.The daily average relative humidity is most suitable in winter in northeast-ern Hubei,while in other seasons it is in southwestern Hubei;The minimum daily relative humidity is most suit-able in spring and summer in northeastern Hubei;The area with the best applicability of maximum relative humidi-ty in summer is northwest Hubei,and the rest of the seasons are southwest Hubei.The temporal correlation coeffi-cient reaches its maximum at 13:00(Bejing Time),and the root mean square error is smallest at 10:00.It has a negative deviation from 01:00 to 11:00 and a positive deviation from 12:00 to 23:00.The daily variation charac-teristics of the three evaluation elements have basically the same trend in each region.The resolution of high-preci-sion CARAS reanalysis data is better than that of current mainstream reanalysis data.Through scientific evaluation of the applicability of CARAS relative humidity,it is hoped to provide scientific reference for the application and correction of CARAS relative humidity data.Overall,the daily average and maximum relative humidity have good applicability in Hubei and can provide data support for meteorological services.关键词
中国大气实况分析产品/相对湿度/相关系数/均方根误差/平均偏差Key words
CARAS/Relative humidity/Correlation coefficient/Root mean square error/Mean bias分类
天文与地球科学引用本文复制引用
艾泽,祝传栋,陈正洪,王祉苏..公里级再分析资料相对湿度在湖北的适用性评估[J].气象与环境学报,2026,42(1):85-94,10.基金项目
中国烟草总公司湖北省公司重点科技项目(027Y2022－006)和湖北省自然科学基金－气象创新发展联合基金(2023AFD104、2022CFD132)共同资助. （027Y2022－006）
