Study on Quality Control Methods of Automatic Temperature Observation
By using the temperature data from 121 national surface meteorological stations in Henan Province,this article analyzes the spatial distributions of extreme highest temperatures(40.0 to 44.6 ℃)and extreme low temperatures(-23.6 to-13.1 ℃)as well as the variation pattern of temperature in Henan Province.Addtionally,the methods of controlling the quality of temperature data are summarized as follows:(1)Checking whether the data is within a reasonable range;(2)checking whether the data conforms to the variation pattern;(3)checking whether the data is correlated to relevant elements;(4)checking whether the data conforms to time consistency;(5)checking the spatial consistency of the data;(6)identifying errors in the data with instantaneous values unchanged for 60 min or the hourly val-ue unchanged for 24 hours;(7)performing critical value checks;(8)examining whether abnormal tem-perature changes are caused by weather events.
NETL
NSTL
万方数据
