宜昌地基遥感垂直观测系统探测精度分析研究

Analysis and research on detection accuracy of Yichang ground-remote sensing vertical observation system

宜昌地基遥感垂直观测系统能够实时监测本区域上空云、雾、弱降水、风速、风向、温度、相对湿度、液态含水量垂直廓线、气溶胶浓度等探测要素,增强突发性、灾害性天气监测能力.该文针对宜昌地基遥感垂直观测系统探测数据的准确性评估问题,提出了一种观测要素评估方法.方法使用了同址探空站的观测资料作为参考标准,通过对比时空匹配的垂直探测数据,分析宜昌垂直观测系统各类探测数据的准确性.通过该系统的垂直廓线产品联合观测2024年2月宜昌雨雪冰冻灾害天气过程,进行多条垂直廓线融合应用研究.定量分析结果表明:宜昌地基遥感垂直观测系统的数据质量全部满足评估指标要求,探测数据与探空资料相关性总体较好,可为气象监测提供精密的观测数据.

The Yichang ground-based remote sensing vertical observation system can monitor cloud,fog,light precipitation,wind speed,wind direction,temperature,relative humidity,liquid water content vertical profile,aerosol concentration and other detection elements over the region in real time,and enhance the ability to monitor sudden and catastrophic weather.A method for evaluating observation elements is proposed to address the accuracy of detection data in Yichang ground-based remote sensing vertical observation system.The method used observation data from the same sounding station as a reference standard,and analyzed the accuracy of various detection data of the Yichang vertical observation system by comparing spatio-temporal matching vertical detection data.Through the vertical profile products of the system,the weather process of the rain and snow freezing disaster in Yichang in February 2024 was jointly observed,and research on the fusion application of multiple vertical profiles was conducted.The quantitative analysis results indicate that the data quality of the Yichang ground-based remote sensing vertical observation system meets the evaluation index requirements,and the correlation between detection data and sounding data is generally good,which can provide precise observation data for meteorological monitoring.