城市化对德州气温的影响分析

Analysis on the influence of urbanization on air temperature in Dezhou

随着城市化进程的加快,气象探测环境发生变化,对气象探测数据的代表性、准确性、比较性产生影响。为了避免这种影响,德州气象观测站2006年搬迁至现址,当时气象探测环境较好,后来,周围居民小区、办公楼逐渐增多,气象探测环境又发生了变化。本文选择德州周边宁津、乐陵、禹城气象观测站为参考站,选用2006~2015年气温观测资料,采用差值和趋势计算方法,分析了德州站因城市化引起的气象探测环境改变对气象要素的影响。结果表明:受城市化综合影响,自2006~2011年,德州站和参考站年平均气温差值、年平均最高气温差值、年平均最低气温差值逐年增大,在2011年后,差值相对稳定;从2006年至2011年,年平均气温差值增幅为0.11℃/年,年平均最低气温差值增幅最大为0.16℃/年,年平均最高气温差值增幅最小为0.06℃/年。

With the acceleration of urbanization process,meteorological detection environment changes,which affects the meteorological data representation,accuracy,and comparison. In order to avoid this impact,Dezhou Meteorological Observatory in 2006 moved to the present site.At that time the meteorological environment was better. But as the surrunding residential area and office building gradually increased,meteorological detection environment has changed. This paper selects the Ningjin,Leling and Yucheng Meteorological Observatories around Dezhou as reference stations,and based on the observation data of temperature from 2006 to 2015,uses difference and trend calculation method,to analyze the impact of meteorological observation environment change on meteorological factors caused by urbanization in Dezhou station. The results showed that: By the combined effects of urbanization,from 2006 to 2011,the annual average temperature difference,the annual average maximum temperature difference and the annual average minimum temperature difference between the station and the reference station increased year by year; after 2011,the difference was relatively stable; from 2006 to2011,the annual average temperature difference increase rate was 0.11 ℃/year,the annual average minimum temperature difference increase was 0.16 ℃/year,and the annual average maximum temperature difference increase was 0.06 ℃/year.