海河水利Issue(10)：73-78,6.DOI:10.3969/j.issn.1004-7328.2025.10.015
多种降水再分析数据在海河流域的适用性评估
Applicability Assessment of Multiple Precipitation Reanalysis Datasets in the Haihe River Basin
吕哲敏 1张夏1
作者信息
- 1. 海河水利委员会水利信息网络中心,天津 300170
- 折叠
摘要
Abstract
Based on monthly precipitation data from NOAA meteorological stations in the Haihe River Basin from 2000 to 2020,the applicability of three reanalysis datasets—ERA5,R-2,and CRU—was evaluated.The time series variations,root mean square error,correlation coefficients,and spatial distribution of precipitation were compared between NOAA precipitation data and the reanalysis datasets.The results show that all three reanalysis datasets can reflect the variation trends of monthly precipitation in the basin.Among them,ERA5 demonstrates the best applicability,with high resolution,a long time series,and minimal bias.Its daily precipitation data can be used for the reproduction of the Haihe River"23·7"rainstorm.The spatial distribution of precipitation in June-August from CRU and ERA5 reflects the characteristic of higher precipitation in the plains compared to mountainous areas.Precipitation reanalysis data can be applied to hydrological and water resource-related studies in the Haihe River Basin.关键词
降水再分析数据/适用性评估/海河流域/海河"23·7"暴雨Key words
precipitation reanalysis data/applicability assessment/Haihe River Basin/Hainhe River"23·7"rainstorm分类
水利科学引用本文复制引用
吕哲敏,张夏..多种降水再分析数据在海河流域的适用性评估[J].海河水利,2025,(10):73-78,6.
