气象2026，Vol.52Issue(5)：595-607,13.DOI:10.7519/j.issn.1000-0526.2025.080601
雷达多观测模式在不同类型天气过程中的适用性评估
Applicability Evaluation of Radar Multiple Observation Modes in Different Types of Weather Events
摘要
Abstract
Based on the S-band dual-polarization radar data from Qingpu(Shanghai),Nantong(Jiangsu),Hangzhou,Jiaxing,Huzhou and Ningbo(Zhejiang),the applicability evaluation of three volume coverage patterns(VCP21D,VCP11D and VCP216D)is assessed under general precipitation,severe convective and typhoon conditions.The evaluation is based on three methods,that is,the subjective identification of characteristic tracer factors,the interpolation of reflectivity factor isosurfaces,and the comparison of dual-radar wind field retrieval.The results indicate that the precipitation mode(VCP21D)and the convective modes(VCP11D and VCP216D)can accurately identify the 0℃ layer bright band characteristic.VCP21D,compared to VCP216D,shows better stability in recognizing the melting layer height,with a smaller standard deviation and a better match to actual conditions.The convective modes VCP11D and VCP216D can significantly enhance vertical observational resolution relative to the precipitation mode VCP21D.This improvement is crucial for detecting key severe weather phenomena,such as ZDR columns and mesoscale cyclones.Meanwhile,compared to VCP11D,the additional 1.0° elevation angle in VCP216D is particular-ly effective in capturing mesoscale features such as low-level gust fronts and sea breeze fronts.Also,this additional scan can eliminate the impact from ground clutter echoes for data quality improvement.In the comparison of isosurface interpolations the data from VCP11D and VCP216D are more detailed than that from VCP21D at the 5 km altitude.In the comparison of wind field retrieval,the availability and accuracy of the retrieved data,from the dual-radar wind field retrieval results of convective modes VCP11D and VCP216D are more significantly improved compared to those of the precipitation mode VCP21D.关键词
体扫模式/强对流/台风/适用性比较/双偏振雷达Key words
volume coverage pattern(VCP)/severe convection/typhoon/applicability comparison/dual-polarization radar分类
天文与地球科学引用本文复制引用
王鹏飞,管理,张晶,陈波,成璐,刘子奇,王坤..雷达多观测模式在不同类型天气过程中的适用性评估[J].气象,2026,52(5):595-607,13.基金项目
中国气象局创新发展专项(CXFZ2024J001)、中国气象局气象能力提升联合研究专项(23NLTSZ002)、中国气象局青年创新团队(CMA2023QN06)、上海市自然科学基金项目(23ZR1447300)和上海市气象局科技人才类项目(KJRC202403、KJRC202411)共同资助 （CXFZ2024J001）
