风廓线雷达风场资料质量控制初探  

Preliminary Study on Quality Control of Wind Data of Wind Profile Radar

作　　者：李蕾 贺志明 邹海波 Li Le;He Zhiming;Zou Haibo(Jiangxi Meteorological Disaster Emergency Warning Center,Nanchang 330096,Chin;Secretariat,Jiangxi Meteorological Society,Nanchang 330096,China;Jiangxi Provincial Office of Weather Modification,Nanchang 330096,China)

机构地区：[1]江西省气象灾害应急预警中心,江西南昌330096 [2]江西省气象学会秘书处,江西南昌330096 [3]江西省人工影响天气领导小组办公室,江西南昌330096

出　　处：《气象与减灾研究》2018年第2期140-147,共8页Meteorology and Disaster Reduction Research

基　　金：国家自然科学基金(编号:41765001);江西省重点研发计划项目(编号:20171BBG70004)

摘　　要：基于2016年2月和8月江西宜春风廓线雷达探测水平风场数据,分别利用扩展经验正交函数(EOF)分析重构法和高斯滤波法对其进行质量控制。结果发现,相比原始观测风场,EOF分析重构法和高斯滤波法均能有效过滤风廓线雷达原始风场的高频脉动。两种方法对比分析发现,对于空间尺度的瞬时扰动,EOF分析重构法质控效果优于高斯滤波法;对于时间尺度的瞬时扰动,高斯滤波法质控效果优于EOF方法。Based on the horizontal wind field data of wind profile radar in Yichun of Jiangxi in February and August 2016,the extended empirical orthogonal function（EOF）analysis reconstruction method and Gaussian filtering method were used for quality control.Compared to the original observation wind field,the high frequency pulsation of original wind field of wind profile radar can be effectively filtered by EOF analysis reconstruction method and Gaussian filtering method.The comparison between two methods showed that the quality control effect of EOF analysis reconstruction method was better than Gaussian filtering method for the instantaneous disturbance of spatial scale.While for the time-scale instantaneous disturbance,the quality control effect of Gaussian filtering method was better than EOF method.

关 键 词：风廓线雷达 质量控制 水平风场 EOF分析 高斯滤波 

分 类 号：P413.2[天文地球—大气科学及气象学]