Application of the Attenuation Correction Technolo- gy in C-band Radar Precipitation Estimation

• 作者: WANG Nan
• 来源期刊: 气象与环境研究：英文版
• 学科: 数学
• 关键词: 校正技术 降水估计 雷达数据 声衰减 应用 波段 计算结果 估测降水
• 年，卷（期）: 2012,（1）
• 页码范围: 51-54
• 页数: 4页
• 分类号: O177.91

摘要

[Objective] The research aimed to study application of the attenuation correction technology in C-band radar precipitation estimation.[Method] Based on CINRAD-CB radar data in Shaanxi,we conducted the attenuation correction experiment by using iteration method and Kufa method respectively.Moreover,we conducted application experiment of the Kufa attenuation correction method in the quantitative precipitation estimation.[Result] Attenuation correction technology could compensate for attenuation problem of the echo at the distant range.Calculation result of the iteration method finally tended to that of the Kufa method.Moreover,iteration method spent more time.Therefore,Kufa attenuation correction technology was more suitable for business operation.When strong echo was near radar,generated attenuation was more obvious,and application value of the attenuation correction was bigger.Attenuation correction technology was used for quantitative precipitation estimation,which was favorable for improving accuracy of the precipitation estimation.But we should conduct detailed planning on calculation scheme of the precipitation estimation because that different calculation schemes had great influences on accuracy of the quantitative precipitation estimation.[Conclusion] This research provided a basis for improving accuracy of the quantitative precipitation estimation in Shaanxi.