气象科技进展2025，Vol.15Issue(4)：61-66,6.DOI:10.3969/j.issn.2095-1973.2025.04.008
基于ERA5再分析数据的合肥地区风廓线雷达数据评估
Evaluation of Wind Profile Radar Data in Hefei Based on ERA5 Reanalysis Data
杜骦 1李欣 2段天峰 1黄金兰 1桂沁园1
作者信息
- 1. 安徽省巢湖市气象局,巢湖 238000
- 2. 安徽省合肥市气象局,合肥 230041
- 折叠
摘要
Abstract
The comparison of hourly average wind data from two wind profile radars in Hefei in 2022 with ERA5 reanalysis data for zonal and meridional wind components reveals that the acquisition rate of wind profile radar data decreases with increasing heights,dropping below 80%above 3 km.Overall,there is a high correlation between wind profile radar data and ERA5 data,with minimal bias and RMSE.Winter exhibits the highest data quality,followed successively by summer,spring and autumn.Above 975 hPa,the correlation coefficients between wind profile radar data and ERA5 data for both zonal and meridional wind components tend to decrease with height increasing,accompanied with the increase of the root mean square error,which peaks at 5.36 m/s for the meridional wind at Chaohu Station in autumn.Precipitation significantly affects the performance of wind profile radars,resulting in substantially larger errors during precipitation periods compared to non-precipitation periods,particularly for meridional winds.关键词
风廓线雷达/ERA5/水平风产品/相关分析Key words
wind profile radar/ERA5/horizontal wind product/correlation analysis分类
天文与地球科学引用本文复制引用
杜骦,李欣,段天峰,黄金兰,桂沁园..基于ERA5再分析数据的合肥地区风廓线雷达数据评估[J].气象科技进展,2025,15(4):61-66,6.
