沙漠与绿洲气象2025，Vol.19Issue(3)：147-156,10.DOI:10.12057/j.issn.1002-0799.2402.04001
ROSE2.1南昌雷达2021-2023年定量降水估测产品检验评估
Assessment of ROSE2.1 Quantitative Precipitation Estimation Product from Nanchang Radar during 2021-2023
摘要
Abstract
The inspection and evaluation of China's official weather radar software,Radar Operational Software Engineering version 2.1(ROSE2.1),contributes to enhancing short-term forecasting and early warning systems,and refining the quantitative precipitation estimation(QPE)algorithm.For the four types of ROSE2.1 QPE products(078,079,169,and 170),a spatio-temporal matching and recalibrated evaluation index method is employed to analyze their performance across spatial distributions,seasonal variations,precipitation intensities,and precipitation types from 2021 to 2023.The results show that dual-polarization products outperform single-polarization ones in QPE capabilities,and OHP products are superior to THP products.Smaller precipitation levels and closer distances yield better accuracy.Within a radius of 50-150 km,dual-polarization products significantly improve upon single-polarization products,enhancing the accuracy of OHP and THP products by 25%-34%and 18%-32%,respectively.This improvement is likely due to better mitigation of ground clutter and building occlusion.The accuracy of OHP169 and THP170 products exceeds 80%within an area of 30 000 km2 surrounding the Nanchang Radar Station.The accuracy is highest in spring,followed by summer and autumn,with winter exhibiting the lowest performance.Additionally,convective precipitation shows higher accuracy compared to stable precipitation.关键词
ROSE/定量降水估测/检验评估/双偏振雷达Key words
radar operational software engineering/quantitative precipitation estimation/inspection and evaluation/dual-polarization radar分类
天文与地球科学引用本文复制引用
李海俊,吴静,李婕,陈云辉,辛佳洁,付彧..ROSE2.1南昌雷达2021-2023年定量降水估测产品检验评估[J].沙漠与绿洲气象,2025,19(3):147-156,10.基金项目
江西省气象局面上项目(JX2021M17,JX2023M24) （JX2021M17,JX2023M24）
江西省气象局灾害风险普查专项(JX2022ZHFXPC03) （JX2022ZHFXPC03）
江西省气象局青年项目(JX2023Q07) （JX2023Q07）
