自动气象站地温传感器现场校准结果不确定度评定  

Uncertainty evaluation of ground temperature sensor field calibration results of automatic weather station

作　　者：黄小静 杨涛 夏雪 Huang Xiaojing;Yang Tao;Xia Xue(Sichuan Meteorological Observation Data Center,Chengdu 610072;Sichuan Key Laboratory of Rainstorm,Drought and Flood in Plateau and Basin,Chengdu 610072)

机构地区：[1]四川省气象探测数据中心,成都610072 [2]高原与盆地暴雨旱涝四川省重点实验室,成都610072

出　　处：《气象水文海洋仪器》2021年第2期35-37,40,共4页Meteorological,Hydrological and Marine Instruments

基　　金：高原与盆地暴雨旱涝灾害四川省重点实验室青年基金(2020038)资助.

摘　　要：文章结合不确定度评定理论和现场校准实地调研,对自动气象站地温传感器现场校准结果的不确定度来源进行了分析;并提出了其不确定度评定的模型和具体计算流程与方法;最后给出了不确定度评定实例。实例结果表明,-20℃、0℃、+30℃现场校准结果的扩展不确定度均小于地温传感器最大允许误差的1/3。Based on the theory of uncertainty evaluation and the field investigation of field calibration,this paper analyzes the sources of uncertainty in the field calibration results of ground temperature sensor of automatic weather station,and puts forward the model of uncertainty evaluation and the specific calculation process and method.Finally,an example of uncertainty evaluation is given.The example results show that the expanded uncertainty of-20℃,0℃and+30℃field calibration results are less than one third of the maximum allowable error of the ground temperature sensor.

关 键 词：地温传感器 现场校准 不确定度 

分 类 号：P412.13[天文地球—大气科学及气象学]