CINRAD/CC天气雷达标准格式基数据与现行业务格式基数据的对比分析

Comparative analysis of CINRAD/CC weather radar standard format base data and current business format base data

该文从命名方式、数据结构两方面介绍CINRAD/CC天气雷达标准格式基数据和现行业务格式基数据的区别,对比分析昆明和昭通两部试点雷达在几次天气过程中基本反射率因子和径向速度的量化差异,得到结论:命名方式和数据存储结构不同;角度分辨率不同,标准格式基数据比现行业务格式基数据的角度分辨率低0.3°;标准格式基数据存在径向数据缺失和径向放射状回波减弱现象;昆明标准格式基数据比现行业务格式基数据回波强度严重减弱,回波强度极值减弱23~29dBz,伴随回波显示面积缩小现象。

This paper introduces the difference between the standard format base data of CINRAD/CC weather radar and the current operational format base data from two aspects of naming method and data structure,and compares the quantitative difference between the basic reflectivity factor and radial velocity of Kunming and Zhaotong experimental radar in several weather processes,and draws a conclusion: Naming method and data storage structure;The angular resolution of standard format base data is 0.3 degrees lower than that of current business format base data;. Radial data missing and radial echo weakening in standard format base data;The echo intensity of Kunming standard format base data is severely weakened than that of current business format base data,and the echo intensity extremum is weakened from 23 dBz to 29 dBz,with the phenomenon of the echo display area to reduce.