鸡东气象台站新旧址气象观测资料差异对比分析

Analysis on Old and New Meteorological Observation Field of Meteorological Elements of Jidong county

鸡东县旧的气象观测场由于受到周边环境变化的影响与新址的气象要素有一定的差异,为了检验新旧址的气象观测资料是否有明显的差异,对鸡东气象站新旧址的气象观测数据差异进行对比分析。利用2011-2012年新旧址平行观测数据的平均气温、最高气温、最低气温、降水量、相对湿度、风速等数据的对比,进行差值的平均值和标准差的计算,以及降水量累计相对差值和风向相符率的计算,并对新旧址观测数据差异进行显著性检验。结果发现：新旧址的气温年值差异很小,但各月差值正负相间;新址的风速大于旧址,年平均风速相差0.4m/s,4月、5月相差明显;旧址的相对湿度略小于新址3%;5~9月降水总体相差不大。新旧址的平均气温和相对湿度一致性较好,观测数据较稳定,最低气温和风速一致性最差,风向相符率仅为29%左右。显著性检验结果表明,新旧址的气温和相对湿度平均值差异不显著,7、8月降水量和1、4、12月平均风速差异较显著。

Accorading to the Jidong county old and new meteorological observation field of meteorological elements,this paper compares and analyzes the old meteorological observation field due to the influence of the surrounding environment changes and new meteorological elements has certain differences,in order to test the new site if there is a obvious difference,the meteorological observation data of jidong meteorological observation data of weather station new site differences were analyzed. Using the new site of parallel observation data from 2011 to 2012 the average temperature,the highest and lowest air temperature,precipitation,relative humidity,wind speed data such as contrast,calculation of the mean and standard deviation of the difference of consistent cumulative relative difference and direction and rainfall rate calculation,and the new site observation data difference significance test,the results showed that： the temperature of the new site in value difference is very small,but months difference and the positive and negative; Wind speed is greater than the site of the new site,the annual average wind speed 0. 4 m /s,from April,may vary significantly; The relative humidity of the site of new slightly less than 3%; From may to September precipitation overall. New site better consistency of average temperature and relative humidity,observation data is stable,the minimum temperature and wind speed consistency,the worst wind direction consistent rate is only about 29%. Significance test results show that the new site of average air temperature and relative humidity differences are not significant,in July and August precipitation and 1,4,12 month average wind speed difference is significant.