百叶箱与通风防辐射罩的温度对比观测结果分析

通过分析郑州国家基准气象观测站2a的外场对比观测试验,对比分析了百叶箱与不同通风防辐射罩性能和差异。本次对比观测试验结果表明:不同的防辐射罩由于结构差异、体积差异和通风差异呈现相对较大的温度差:白天高温阶段,t玻璃钢t自然通风t强制通风;夜间低温阶段,t强制通风t玻璃钢t自然通风;日平均气温,t玻璃钢t强制通风。

Comparative analysis on thermometer screens and ventilation radiation shield

According to compare the tests made in Zhengzhou national reference observation weather station during a 2-year field experiment,the performance and difference between thermometer screens and ventilation radiation shield are comparative analyzed. The tests demonstrate that the relatively large differences are presented due to structural, volume and ventilation differences. The high temperature on the days show that tref〉t〉tasp. The low temperature at night show that tasp〉tref〉t. The daily average temperature show that tref〉tasp. This comparative experiment might be significance for improving future air temperature observation in China.