中国农业气象

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城市热岛效应和迁址对东阿站气温资料序列的影响

李又君;吕博;张荣霞;孙培良;王德锦;   

  1. 聊城市气象局;东阿县气象局;
  • 出版日期:2010-08-10 发布日期:2010-08-10
  • 基金资助:
    山东省气象科研重点项目“山东省地面气象测报业务技术规定查询平台”(2008sdqxz21)

Impact of Heat Island Effect and Relocation on Temperature Sequence at Dong'e Station

LI You-jun1,Lü-bo1,ZHANG Rong-xia1,SUN Pei-liang1,WANG De-jin2(1.Liaocheng Meteorological Bureau,Liaocheng 252060,China;2.Dong'e Meteorological Bureau,Dong'e 252201)   

  • Online:2010-08-10 Published:2010-08-10

摘要: 为了揭示城市热岛效应和迁址对东阿站气温资料的影响,本文选取东阿站和相邻的阳谷、聊城、茌平3个站1960-2009年年平均气温、年平均最高气温、年平均最低气温资料,用线性倾向估计、累积距平等方法对比分析了东阿站和参照站气温资料变化趋势,并计算了热岛效应强度,用Mann-Kendall法对年平均气温进行了气候突变检验。结果表明:1960-2007年,东阿站与参照站的年平均气温变化曲线随年份的增加呈波动上升,变化趋势基本上是一致的,但东阿站的线性回归系数(0.032)比参照站的(0.010)大;累积距平分析表明,东阿站主要变暖趋势在1986以后,参照站主要变暖趋势在1994年后;1970-2007年东阿站热岛效应强度随年代增加呈增强的趋势,增温率为0.25℃/10a;热岛效应的存在使得气候变暖的突变点发生了改变,东阿站气候变暖的突变点在1988年附近,参照站气候变暖的突变点在1993年。2008年,东阿站迁址后热岛效应明显减弱或消失,使得气温变化趋势出现了不连续现象。因此在应用东阿站气温资料进行气候分析时,应考虑热岛效应的影响,在热岛效应影响显著的年代里,可利用热岛效应强度的变化方程:y=0.0254x-0.0217进行温度订正。

关键词: 探测环境, 城市热岛效应, 气温, 突变

Abstract: To reveal the impact of Heat Island Effect and relocation on temperature sequence at Dong'e meteorological observation station,the variation trend of temperature sequence was analyzed by linear tendency estimator method and cumulative departure method,the abrupt change of annual average temperature was tested by using the method of Mann-Kendall,based on the data(1960-2009) of annual average temperature,annual average maximum temperature and annual average minimum temperature at Dong'e meteorological observation station and three other stations nearby.The result showed that the annual average temperature of all stations increased during 1960 to 2007.But the linear regression coefficient of Dong'e,0.032,was greater than that of reference observation,0.010.The accumulation departure analysis showed that the average temperature of Dong'e has been increased significantly since 1986,as other stations increased significantly since 1994.The increasing rate of temperature was 0.25℃/10y during 1970 to 2007,partly because of the impact of Heat Island Effect.The abrupt change point of Dong'e was at 1988,as other stations were at 1993.Heat Island Effect disappeared because of station location changed in 2008.As a result,Urban Heat Island effect should be taken into consideration when used temperature data of Dong'e.Urban Heat Island Effect could be modified by using the equation y=0.0254x-0.0217.

Key words: Detection environment, Detection environment, Urban heat island effect, Air temperature, Abrupt change