潮州市新旧观测站气象要素变化对比分析

Comparative Analysis on the Changes of Meteorological Elements of the Old and New Observation Stations in Chaozhou City

2013年,由于陈桥观测站观测环境的破坏,观测场搬到了远离市区的红山森林公园。为了验证观测资料在搬迁前后是否有明显差异,通过T检验对潮州新旧观测站之间的各项气象要素进行显著性检验,再对潮州新旧站点之间的各项气象要素进行差值对比分析,结果表明:新站个别月份的月平均气温和月平均风速与旧站存在显著差异;新站除了个别月份之外,月平均气温、月平均最高气温、月平均最低气温、月极端最高气温、月极端最低气温与旧站相比,均比旧站低,相对湿度则是新站比旧站高;新站的月平均风速基本比旧站小,盛行风向有明显的季节性变化,新站的风向特征与本地历史风向特征有一定的差异;新旧站之间的降水量差异较小。

Due to the destruction of the observation environment,Chenqiao Observation Station was moved to Hongshan Forest Park in 2013. In order to test and verify whether there are great differences between the new site and old one,we made tests of significance and the Student＇s t test on all meteorological elements and we draw conclusions as below： 1. great difference exists between new site and the old one for particular months in views of monthly mean temperature and monthly mean wind speed; 2. Except particular month,the monthly mean temperature,monthly mean maximum temperature,monthly mean minimum temperature,monthly extreme maximum temperature,and monthly extreme minimum temperature are lower at the new site than at the old one,while the relative humidity is higher in the new site; 3. certain difference exists in the prevailing wind direction and monthly average wind speed between new site and the old 4. there is slight difference in precipitation.