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

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.

基于逻辑框架法的随机对照试验课题执行质量评估指标体系的构建

目的:构建随机对照试验(RCT)课题执行质量评估的指标体系。方法:以逻辑框架法(LFA)为指导,构建RCT课题执行质量评估的问题树、目标树、逻辑框架,进而构建综合指标体系。结果:所构建的RCT课题执行质量评估的指标体系,准则层包括课题质量控制和不良事件,要素层包括随机化、病例资料的可靠性、依从性、数据质量和不良事件,指标层包括随机方案的执行、随机方案的隐藏、原始病例资料的完整性、源文件的可溯源性、研究者的依从性、受试者的依从性、病例报告表数据的涂改/修改、不良事件的个数、不良事件的发生率。没有纳入盲法和伦理部分。结论:建立的指标体系,是在第三方严格质量控制下的课题执行质量评估,可应用于临床RCT研究课题的中间执行质量评估、中期执行质量评估、结题执行质量评估。