摘要
为减小误差、满足工程应用需求,文章对单经纬仪小球测风各影响要素进行了分析,建立了高空风矢量计算公式和风速各影响要素误差传递的数学模型。以美国30g测风气球为典型研究对象,依据GJB 6556.3-2008和GJB 6076-2007,参考美国联邦气象手册《Rawinsonde and Pibal Observation》,对单经纬仪风速测量的各项系统误差和随机误差进行了分类计算和分析。减小气球跟瞄误差可有效降低风速测量随机误差,值得引起我们的关注。
In order to reduce the error and meet the needs of the engineering application,this paper analyzes the influence factors of the single-theodolite method in pibal observation.The calculation formulas of the upper wind vector and mathematical models of the error propagation are established.Taking the American30g balloon as the typical research object,based on GJB6556.3-2008and GJB6076-2007,according to USA federal meteorological handbook Rawinsonde and Pibal Observation,the system and random error of wind measurement are classified and calculated.Reducing the error of balloon tracking can effectively reduce the random error of wind measurement,which deserves our more attention.
作者
黄华
郭高
杨小军
Huang Hua;Guo Gao;Yang Xiaojun(Beijing Institute of Applied Meteorology,Beijing 100029;Xi an Institute of Optics and Precision Mechanics of CAS,Xi an 710119)
出处
《气象水文海洋仪器》
2018年第4期1-4,共4页
Meteorological,Hydrological and Marine Instruments
关键词
经纬仪
小球测风
升速
风速
误差传递
theodolite
pibal observation
rising velocity
wind velocity
error propagation
