Comparative Analysis of Air Temperature between Alar Automatic Weather Station and Manual Observation
According to the air temperature observation data of artificial and automatic stations of Ala Hydrological Station in 2022,the following three points are found by analyzing the comparative difference.First,the annual average temperature difference of Alar is 0.20℃ ,which means the average temperature of automatic stations is 0.20℃ higher than that of manual stations.The standard deviation is 0.60℃ ,with daily highest and lowest automatic and artificial temperatures ranging from 0.60 to 0.40℃ .The standard deviation is 1.10 to 1.90℃ .For short-term temperature prediction,the observation data from the Alar automatic meteorological station is available.In terms of climate research,the temperature observation data from the Alar automatic meteorological station is available.Second,in the four seasons of the year,the absolute value of the contrast difference between Alar autumn and winter is less than 0.20.Therefore,the Alar automatic weather station data are reliable and available at this time.When the absolute difference between spring and summer observation is greater than or equal to 0.20,the temperature observation data are reliable and must be used carefully.Third,during a day,the absolute values of Alar's morning and evening contrast difference are small,so the automatic meteorological observation values are completely reliable.
basic situationautomatic and manual data comparison and related analysiscontrast difference
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