基于计算流体动力学方法的气温观测仪器设计与辐射误差研究  

Design and radiation error research of temperature observation instrument based on computational fluid dynamics method

作　　者：葛祥建 杨杰 朱化难 胡晨浩 丁仁惠 Ge Xiangjian;Yang Jie;Zhu Huanan;Hu Chenhao;Ding Renhui(Nanjing University of Information Science&Technology,Jiangsu Collaborative Innovation Center for Atmospheric Environment and Equipment Technology,Nanjing 210044;Jiangsu Meteorological Detection Center,Nanjing 210009)

机构地区：[1]南京信息工程大学,江苏省大气环境与装备技术协同创新中心,南京210044 [2]江苏省气象探测中心,南京210009

出　　处：《气象水文海洋仪器》2023年第2期13-17,共5页Meteorological,Hydrological and Marine Instruments

基　　金：国家自然科学基金面上项目(41875035);江苏省产学研合作项目(BY2022544);江苏省研究生科研与实践创新计划项目(SJCX22_0334);江苏省高等学校大学生创新创业训练计划项目(202210300011Z)资助。

摘　　要：受太阳辐射影响,地面气温观测仪器测量值与自由空气真实温度偏差较大,误差达1℃量级。基于此,文章设计了一种既可以有效阻挡太阳辐射直接照射测温探头,又可以引导气流流向测温探头的地面气温观测仪器。经实验验证,文章研制的气温观测仪器的测量结果与基准值之间的平均绝对误差和均方根误差分别为0.030℃和0.035℃,达到了0.1℃量级的技术要求。Affected by solar radiation,a relatively larger deviation occurs between the value measured by ground temperature observation instrument and the true temperature of free air,reaching 1℃ magnitude.Based on this,a ground temperature observation instrument is designed in this paper,which can be used to effectively prevent the solar radiation from irradiating the temperature probe directly and guide the air flow towards the temperature probe.It is verified by experiment that the mean absolute error and root-mean-square error between the results measured by temperature observation instrument developed in this paper and the base value are 0.030℃ and 0.035℃ respectively,reaching the technical requirement of 0.1℃ magnitude.

关 键 词：地面气温 辐射误差 气温观测仪器 计算流体动力学 神经网络 

分 类 号：P412.11[天文地球—大气科学及气象学]