【摘要】 广西桂林市临桂国家气象观测站2019年3月21日21:13观测到60.3m/s极端大风,数据使用单位对风速观测值的真实性提出了疑问。针对临桂站观测到的极大风速值,对观测场内主用、备用自动站观测资料进行分析,撤换风传感器进行检定,通过综合分析认为:(1)极端大风值出现前后临桂站的主、备自动站观测资料变化趋势一致,观测要素变化符合要素间的逻辑关系,临桂站的观测资料是可信的。(2)检定结果说明风速传感器的频率值与风速仍然存在很好的线性关系,根据新的线性关系订正出的风速值更接近临桂站当时极端大风的真实值。在分析和总结的同时,从数据质量控制、观测数据极值认定和订正应用、设备运维措施等三个方面提出了思考和建议。更多还原

【Abstract】 The Lingui National Meteorological Observatory of Guilin,Guangxi,observed an extreme high wind of 60.3 m/s at 21:13 on 21 March 2019.The data users doubted the authenticity of the wind speed observations.The observation data of Lingui Station,including main AWS and backup AWS,were analyzed,and the wind sensors were replaced for verification.According to the comprehensive analysis,it is concluded:(1)The observational data of Lingui Station’s main AWS and backup AWS had the same trend before and after the occurrence of the extreme wind.The changes in the observation elements conformed to the logical relationship between the elements,so the observation data of Lingui Station are credible.(2)The verification results show that there is still a good linear relationship between the frequency of the wind speed sensor and the wind speed.The wind speed value corrected according to the new linear relationship is closer to the true value of the extreme wind at Lingui Station.Based on the analysis and summary of the authenticity of the maximum wind speed observations at Lingui Station,the suggestions are put forward in three aspects:data quality control,observation data extreme value identification and correction application,as well as the equipment operation and maintenance measures.更多还原