| 站点选择对城市热岛效应的影响分析 |
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| 引用本文： | 李丽光,王宏博,赵梓淇,刘晓梅,万志红,孙凤华,董国平.站点选择对城市热岛效应的影响分析[J].气象与环境学报,2013,29(2):54-60. |
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| 作者姓名： | 李丽光 王宏博 赵梓淇 刘晓梅 万志红 孙凤华 董国平 |
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| 作者单位： | 1.中国气象局沈阳大气环境研究所，辽宁 沈阳 110016；2.辽宁省气象信息中心，辽宁 沈阳 110016；3.辽宁省气象局，辽宁 沈阳 110016；4. 辽宁省气象学校， 辽宁 沈阳 110016 |
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| 基金项目： | 公益性科研院所基本科研业务费专项基金(2011IAE-CMA07);国家自然科学基金(41101077)共同资助 |
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| 摘 要： | 根据城郊站间距离等对辽宁56个气象站进行筛选，采用城郊温差法对选站和未选站时郊区站点数量有变化的大连、丹东、锦州和铁岭4个城市的月和年热岛特征进行分析。结果表明：对于年热岛特征而言，1980-2011年，大连、丹东、锦州和铁岭4个城市选站和未选站时热岛强度大小明显不同，但其变化趋势基本一致。4城市相比，选站和未选站时后均表现为铁岭年热岛强度最大，多年平均值分别为1.53 ℃和1.85 ℃，其变化范围分别为1.17-1.80 ℃和1.55-2.15 ℃，变化幅度分别为0.63 ℃和0.60 ℃。1980-2011年，铁岭热岛强度等级发生变化的年份最多，占25 %。总体来讲，选站对年热岛特征影响不是很大。对于月热岛特征而言，大连选站和未选站时热岛强度变化较大，但其他3个城市选站选站和未选站时变化不大，尤其是锦州选站和未选站时变化基本一致。4城市均有冬半年热岛效应明显，夏半年热岛效应不明显的特征。1980-2011年，各月平均热岛强度等级在选站和未选站时变化均较大，最大为丹东10月和11月，等级变化的年份占90.6 %，总体而言，选站对月热岛强度特征影响较大。
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| 关 键 词： | 气象站 站点选择 城市热岛强度 热岛强度等级 |
Effect of sifting weather stations on urban heat island intensity |
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| LI Li-guang,WANG Hong-bo,ZHAO Zi-qi,LIU Xiao-mei,WAN Zhi-hong,SUN Feng-hua,DONG Guo-ping.Effect of sifting weather stations on urban heat island intensity[J].Journal of Meteorology and Environment,2013,29(2):54-60. |
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| Authors: | LI Li-guang WANG Hong-bo ZHAO Zi-qi LIU Xiao-mei WAN Zhi-hong SUN Feng-hua DONG Guo-ping |
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| Institution: | 1. Institute of Atmoshperic Environment, China Meteorological Administration, Shenyang 10016, China; 2. Liaoning Meteorological Information Center, Shenyang 10016, China; 3. Liaoning Meteorological Service, Shenyang 10016, China; 4. Liaoning Meteorological School, Shenyang 10016, China |
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| Abstract: | The 56 weather stations in Liaoning province were sifting repeatedly according to some rules such as the distance between weather stations and so on. The characteristics of urban heat island （UHI） in four cities （ Dalian, Dandong,Jinzhou and Tieling） where the number of weather stations was different with and without sifting weath- er stations were analyzed using a temperature difference method. The results indicate that for the annual UHI char- acter,the UHI intensity is different in four cities from 1980 to 2011 with and without sifting weather stations, while both trends are similar. Among four cities, the UHI intensity is the highest in Tieling whether sifting weather sta- tions or not, and their average values are 1.53 ℃ and 1.85 ℃; their ranges are 1.17--1.80℃ and 1.55-- 2. 15 ℃ ;their amplitudes of fluctuation are 0. 63℃ and 0. 60 ℃,respectively. The years that the UHI intensity grade changes with and without sifting weather stations account for 25 % in Tieling, and it is the highest among four cities. In general, the effect of sifting weather stations on the annual UHI intensity is weak. For the monthly UHI character,the variation is significant in Dalian with and without sifting weather stations from 1980 to 2011, while it is not significant in other three cities, especially in Jinzhou. The variation of monthly UHI intensity grade is obvious in each month,and the maximum appears in October and November in Dandong. The years that the UHI intensity grade changes with and without sifting weather stations account for 90. 6%. In general, the effect of sif- ting weather stations on the monthly UHI intensity is obvious. |
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| Keywords: | Weather station Sifting weather station Urban heat island intensity Urban heat island intensity grade |
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