自动站地面气象资料地温异常对比分析方法  

Methods to Compare the Anomalies of Ground Temperature Data among Automatic Weather Stations

作　　者：王艳[1] 张海娜[1] 

机构地区：[1]沈阳区域气候中心,辽宁沈阳110016

出　　处：《安徽农业科学》2011年第30期18814-18817,共4页Journal of Anhui Agricultural Sciences

摘　　要：利用辽宁省12个台站2006～2009年的不同层次自动站日地面温度的数据,用单站多要素、多站单要素和历年单站单要素的对比分析方法,对苏家屯和岫岩台站的地温变化及其原因进行分析,探讨地温异常的根本原因。结果表明,2009年5月苏家屯台站浅层地温(5、10、15、20 cm)变化异常是由于浅层地温传感器下沉使浅层地温连续多天或整月地温变幅异常,为避免数据异常应及时查看地面温度传感器的浅层地温传感器的埋设情况,浅层地温安装支架的零标线是否与地面齐平。2008年9月岫岩台站80 cm地温整月数据异常,是由于深层地温硬胶套管内含有积水使地温传感器出现故障造成深层地温连续多天或整月数据异常。在审核地温时,要进行单站多要素的对比,还要进行多站单要素对比,如有疑义还要进行各年单站单要素的对比。According to different levels of daily ground temperature of 12 automatic stations in Liaoning Province,the comparison and analysis methods of single-station multi-factors,multi-stations single-factor and single-factor single-station were adopted to analyze the changes and root causes of ground temperature anomalies in Sujiatun and Xiuyantai stations.Results showed that the anomalies of shallow ground temperature（5,10,15,20 cm） were caused by the sinking of shallow ground temperature sensor,in order to avoid data anomalies,we should check in time the burying of sensor and if the zero marking of mounting bracket of sensor was equal to the ground level.The anomalies of monthly ground temperature data at 80 cm in Xiuyantai station in September 2008 was resulted from the water logging in hard plastic sleeve.The inspection of ground temperature should take into account the comparison of single-station multi-factor and multi-station single-factor,if there was any problems,the comparison of single-station single-factor was also needed.

关 键 词：浅层地温 深层地温 数据异常 对比分析 自动站 

分 类 号：P451[天文地球—大气科学及气象学]