风廓线雷达产品数据置信度研究

随着风廓线雷达技术的发展,高空风探测参量越来越多,数据精度不断提高,探测能力得到了极大提升。评估风廓线雷达数据置信度是风廓线雷达应用中需要解决的重要问题。本文基于径向数据和风场合成两个阶段,在风廓线雷达数据反演过程中形成数据置信度算法,并引入噪声电平。同时,利用南京同站址风廓线雷达和探空1 a的资料进行匹配比对,对置信度算法性能进行评估,结果表明该置信度算法可行。将置信度算法植入风廓线雷达数据处理软件中,能实时输出含置信度的风廓线雷达产品数据,有利于预报人员合理使用置信度较高的风廓线雷达产品数据。对于置信度较差的产品数据进行分析,可有助于及时发现雷达的潜在故障。

Research on data credibility of wind profiler radar product

With the development of wind profile radar technology, the parameters of high-altitude wind detection are increasing, as well as the accuracy of data is continuously improved, and the detection capability has been greatly improved. It is an important issue to evaluate the credibility of wind profile radar in wind profile radar applications. This paper proposes a data credibility algorithm, which uses two stages of radial data and wind field synthesis, and introduces noise electrical levels in the wind profile radar data inversion process.The performance of the credibility algorithm is evaluated by matching the data of the Nanjing station wind profiler radar and sounding data for one year. The experimental results show that the credibility algorithm proposed in this paper is feasible. The credibility algorithm is implanted into the wind profiler radar data processing software, and the wind profile radar product data with credibility is output in real-time, and the forecaster uses the high-credibility wind profiler radar product data. Analysis of poorly credible product data can help identify potential failures on the radar.