地基遥感垂直观测系统数据质量评估与产品融合分析  

Data quality evaluation and product fusion analysis of ground-based remote sensing vertical observation system

作　　者：李力[1] 饶传新 周云祥 李俊[1] 陈星 汪璠 徐海富 LI Li;RAO Chuanxin;ZHOU Yunxiang;LI Jun;CHEN Xing;WANG Fan;XU Haifu(Hubei Meteorological Information and Technology Support Center,Wuhan 430074,China;Yichang City Bureau of Meteorology,Yichang 443000,China)

机构地区：[1]湖北省气象信息与技术保障中心,湖北武汉430074 [2]宜昌市气象局,湖北宜昌443000

出　　处：《湖北大学学报（自然科学版）》2024年第6期872-885,共14页Journal of Hubei University：Natural Science

基　　金：湖北省自然科学基金创新发展联合基金(2023AFD092);湖北省气象局科技发展基金(2022Z04,2023Y13)资助。

摘　　要：针对地基遥感垂直观测系统风向与风速、温度与相对湿度、云底高度与云顶高度、大气瑞利信号拟合误差与有效探测距离、大气可降水量与对流层总延迟等10种探测要素的数据准确性评估及融合产品有效性验证问题。以2024年1月1日至7月1日宜昌地基遥感垂直观测系统的实际探测资料为例,采用同址的L波段探空雷达观测数据作为参考标准,选取时空匹配的垂直廓线产品进行对比,评估地基遥感垂直观测系统探测数据的准确性,并综合运用系统高时空分辨率的融合产品,从大气动力结构、云雨结构等方面剖析宜昌地区2024年6月27—28日梅雨期降雨过程。研究结果表明:宜昌地基遥感垂直观测系统探测设备性能优良,运行较为稳定,能够在垂直方向上综合解析大气结构;运行评估期内,宜昌地基遥感垂直观测系统探测数据的准确性均满足评估指标,与探空观测资料的相关性总体较好;多条垂直廓线融合产品可以清晰展示降雨过程发生、发展、消散的垂直动态变化细节,证实了融合产品在天气分析中的有效性和实用性。The data accuracy evaluation and fusion product effectiveness verification of ten detection elements in the ground-based remote sensing vertical observation system,including wind direction and speed,temperature and relative humidity,cloud base height and cloud top height,atmospheric Rayleigh signal fitting error and effective detection distance,atmospheric precipitation and total tropospheric delay.Taking the actual detection data of the Yichang ground-based remote sensing vertical observation system from January 1 to July 1,2024 as an example,the L-band sounding radar observation data at the same site was used as the reference standard.Spatiotemporal matched vertical profile data was selected for comparison to determine the accuracy of the ground-based remote sensing vertical observation system’s detection data.The fusion product with high spatiotemporal resolution of the system was comprehensively used to analyze the rainfall process during the Meiyu period on June 27-28,2024 in Yichang area from the aspects of atmospheric dynamic structure,cloud and rain structure.The research results indicate that the detection equipment of Yichang ground-based remote sensing vertical observation system has excellent performance,stable operation,and can comprehensively analyze atmospheric structure in the vertical direction;During the evaluation period,the accuracy of the detection data from the Yichang ground-based remote sensing vertical observation system met the evaluation criteria,and the correlation with sounding observation data was generally good;The fusion product of multiple vertical profiles can clearly display the vertical dynamic changes in the occurrence,development,and dissipation of rainfall processes,confirming the effectiveness and practicality of the fusion product in weather analysis.

关 键 词：地基遥感 垂直结构 数据质量 综合观测 融合应用 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论] P409[自动化与计算机技术—计算机科学与技术]