四川省自动与人工气压观测值差异对比  

Comparative Analysis of Automatic and Manual Pressure Measurements in Sichuan

作　　者：游泳[1] 苑跃[1] 余海蓉[1] 主召华[1] 赵小莉[1] 

机构地区：[1]四川省气象局信息中心,成都610072

出　　处：《气象科技》2010年第2期235-238,共4页Meteorological Science and Technology

基　　金：四川省气象局应用开发课题资助

摘　　要：应用四川省135个台站在自动站与人工站平行观测期间的对比观测数据,对两种不同的资料进行了对比分析。结果表明:自动站与人工站的日气压差值不满足正态分布,人工观测比自动观测平均偏高0.35 hPa,标准差为0.48 hPa。自动站与人工站的相关性较好,相关系数为0.99,大约3/4的对比观测台站的人工站气压观测值大于自动站气压观测值。自动站与人工站气压观测值的月平均差异在上半年逐步增大,6月达到最大,下半年开始逐步减小。2004年的自动与人工气压观测数据年平均值差异最小,2006年数据据差异最大。Using the parallel observation data of 135 stations with AWS（Automatic Weather Station） and manual pressure measurements in Sichuan,the differences between the two sorts of data are analyzed and discussed.The results show that the daily difference does not satisfy the normal distribution pattern,and the average daily pressure observed by manual way is 0.35 hPa greater than that by AWS.The correlation coefficient of average daily pressure is 0.99 with the significant level being 0.01;about 3/4 of manual measurements are greater than those from AWS＇s.The monthly average difference between automatic and manual measurements is larger in the first half year with the largest difference in June.The annual mean difference is smallest in 2004 and greatest in 2006.There are about 90% stations in the whole province with negative difference values.

关 键 词：自动观测 人工观测 气压 对比分析 

分 类 号：P415.12[天文地球—大气科学及气象学]