松江观测站迁站后温度变化的原因浅析

Primary Analysis of the Causes of Temperature Changes After Songjiang Observation Station Transferring

对松江老站与新站气温进行对比,并且对迁站后松江自动气象站代替人工观测的资料进行分析。结果表明,新观测站的平均温度、最低气温、最高气温、极端气温均高于老站;20:00至次日08:00新老测站的平均气温差要大于08:00至20:00。松江站迁站后温度变化的原因一是受两站周围环境及下垫面性质的影响;二是自动站观测代替了人工观测,感应部分的原理、观测时间、流程的不同。

Compared with the temperatures of the old and new stations in Songjiang,and the data after transferring manual observation to automatic weather station were analyzed. The results showed that the average temperature,the lowest and highest temperature and the extreme temperature in new observation station were higher than the old station; the average temperature difference of between the new and old observation stations from 20：00 to 08：00 of the next day was bigger than that from 08：00 to 20：00.There were two causes of temperature changes after Songjiang station transferring：one was effected by the surrounding environment as well as the nature of underlying surface of the old and new stations; the other was sensing part of the theory,observation time,process were different between the automatic weather station and manual observation.