南京自动气象站与人工观测风速差异分析

The difference analysis of wind speed by AWS and manual observation in Nanjing

利用南京2004和2005年的自动站和人工站的观测数据,分析了定时风速、自记风速、日最大风速和日极大风速的差异情况,发现定时风速和自记风速均是自动站观测数据大于人工观测数据,日最大风速也是自动站数据大于人工观测数据的时次较多,而日极大风速则是自动站数据普遍小于人工站观测值,这表明:我国地面观测系统改革后,观测资料的连续性受到了一定的影响,做好各类要素的连续性评估是很有意义的。

Based on the parallel observing data of the Automatic Weather Stations（AWS） and manual observatory in 2004 and 2005, the difference of regular and automatic wind speed, daily maximum and daily instantaneous maximum is analyzed. We found that the regular and automatic wind speed of AWS are larger than that of manual observing, and so is the daily maximum wind speed, but the daily instantaneous maximum wind speed of AWS are smaller than the manual observation. It indicates that after the national surface sounding system reforming, the continuity of observing data was influenced, and it is very important to do the continuity assessment work of all meteorological elements.