华北高速天津段公路气象数据质量控制分析

应用缺测分析、气候学界限值检查、历史极值检查、时间一致性检查、要素一致性检查和利用要素时间曲线人工检查等方法，对华北高速公路天津段公路自动气象站的能见度、相对湿度、气温、地温、风速等气象要素的数据质量进行分析，通过分析发现由于仪器故障造成数据缺测及在一定时间内恒定不变或变率太小是自动气象站存在的主要问题。在极少数情况下，存在超过界限值的错误数据；历史极值检查、时间一致性检查和要素时间曲线人工检查等方法对可疑数据错误检出率不高，现有检查域值还需要不断完善。

Quality Analysis of Meteorological Data from Huabei Expressway in Tianjin

Through checking missing data, climate limits, historical extreme values, time and space consistency, trend curve, etc., an analysis is made of the quality of automatic weather stations data （including visibility, humidity, temperature, surface temperature, and wind） from the Huabei expressway in Tianjin It is found out that the main problem for the automatic weather stations on expressways is data missing, too small variability or constant data within a certain time （generated by equipment failures） In rare cases, there exist error data outside the climate limits By means of the trend analysis method,suspicious data are analyzed by checking the history values, time consistency, etc., and the results indicate that the error rate of suspicious data is generally acceptable, and the currently used thresholds need to be improved continuously