A quality control method for high-resolution radiosonde temperature and wind data  

高频探空温度和风速的质量控制方法研究

作　　者：Fang Yuan Zijiang Zhou Jie Liao Qinglei Li 

机构地区：[1]National Meteorological Information Center,China Meteorological Administration,Beijing,China

出　　处：《Atmospheric and Oceanic Science Letters》2021年第2期48-52,共5页大气和海洋科学快报（英文版）

基　　金：supported by the National Innovation Project for Meteorological Science and Technology grant number CMAGGTD003-5;the National Key R&D Program of China grant number2017YFC1501801。

摘　　要：This study proposes a method to derive the climatological limit thresholds that can be used in an operational/historical quality control procedure for Chinese high vertical resolution(5–10 m)radiosonde temperature and wind speed data.The whole atmosphere is divided into 64 vertical bins,and the profiles are constructed by the percentiles of the values in each vertical bin.Based on the percentile profiles(PPs),some objective criteria are developed to obtain the thresholds.Tibetan Plateau field data are used to validate the effectiveness of the method in the application of experimental data.The results show that the derived thresholds for 120 operational stations and 3 experimental stations are effective in detecting the gross errors,and those PPs can clearly and instantly illustrate the characteristics of a radiosonde variable and reveal the distribution of errors.针对中国高分辨率探空资料,本文提出了一种计算气候学界限值的方法以满足业务中对资料进行质量控制的需求.首先在垂直方向上将整个大气划分为64层,将落在每层范围内的观测数据都收集到一起进行排序并计算百分位,在此基础上通过比较不同百分位廓线值来获得气候学界限值.除了业务台站,本文还使用了TIPEX-III的探空数据来验证本方法在科学试验数据中的应用效果.评估表明,应用气候学界限值可以有效检测到业务站和试验站观测数据中的粗大误差;百分位廓线则可以清晰的体现出探空观测的整体变化特征并揭示出误差的整体分布范围.

关 键 词：HIGH-RESOLUTION Radiosonde data Quality control TIPEX-III 

分 类 号：P412[天文地球—大气科学及气象学]