| 以高山站为背景研究城市化对气温变化趋势的影响 |
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| 引用本文： | 段春锋,缪启龙,曹雯,马德栗.以高山站为背景研究城市化对气温变化趋势的影响[J].大气科学,2012,36(4):811-822. |
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| 作者姓名： | 段春锋 缪启龙 曹雯 马德栗 |
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| 作者单位： | 1.南京信息工程大学江苏省农业气象重点实验室,南京 210044;安徽省气候中心,合肥 230031 |
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| 基金项目： | 科技部公益性行业（气象）科研专项GYHY201006006、GYHY201006012,江苏省普通高校研究生科研创新计划资助项目CX10B_301Z,江苏高校优势学科建设工程(PAPD)项目 |
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| 摘 要： | 本文基于1957~2005年的逐日气象资料,对比分析了中国东部7组高山气象站和山下附近的城市气象站年 与四季气温变化趋势.在此基础上,利用高山站作为气候变化背景场来分析城市化对平均气温、最高气温、最低气温变化趋势影响的性质和程度,及其对气温变化非对称性的影响.结果表明:平均气温和最低气温变化趋势城市站多比高山站大,而最高气温变化趋势高山站多比城市站大；城市站最低气温变化趋势均大于最高气温变化趋势,具有明显的非对称性现象,而高山站这种表现十分微弱.城市站气温变化受到明显的城市化影响,对于平均气温和最低气温以正影响为主,而对于最高气温为负影响为主,说明城市化对气温变化的影响也存在非对称性.城市化影响的非对称性是气温变化非对称性形成的主要因素.
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| 关 键 词： | 气温 气候变化 城市化 非对称性变化 |
| 收稿时间： | 6/9/2011 12:00:00 AM |
| 修稿时间： | 2012/2/20 0:00:00 |
Effect of Urbanization on Variation Trends of Air Temperatures Based on Mountain Stations |
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| DUAN Chunfeng,MIAO Qilong,CAO Wen and MA Deli.Effect of Urbanization on Variation Trends of Air Temperatures Based on Mountain Stations[J].Chinese Journal of Atmospheric Sciences,2012,36(4):811-822. |
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| Authors: | DUAN Chunfeng MIAO Qilong CAO Wen and MA Deli |
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| Institution: | 1.Jiangsu Key Lab of Agricultural Meteorology, Nanjing University of Information Science and Technology, Nanjing 210044;Anhui Climate Center, Hefei 2300312.Jiangsu Key Lab of Agricultural Meteorology, Nanjing University of Information Science and Technology, Nanjing 2100443.Wuhan Regional Climate Center, Wuhan 430074 |
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| Abstract: | Based on daily air temperature data from 1957 to 2005, the difference in annual and seasonal air temperature trends between seven mountain stations and seven nearby urban stations in eastern China was investigated. The effect of urbanization on the variation trends of the mean air temperature, the maximum air temperature, and the minimum air temperature and the asymmetrical change of air temperature were also analyzed with the mountain stations as the background field. Results showed that the trends of the mean and minimum air temperatures were lager at the urban stations than at the mountain stations, while the trends of the maximum air temperatures were quite opposite. The air temperature trends for the urban stations showed asymmetrical characteristics more obviously than those for the mountain stations due to higher variation rates of the minimum air temperatures in the cities compared to those of the maximum air temperatures. The effect of urbanization was positive to the mean and minimum air temperatures, while negative to the maximum air temperatures. The effect of urbanization on the air temperature trends was asymmetric. The asymmetry of urban effect was the main cause for the asymmetrical change of air temperatures. |
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| Keywords: | air temperature climate change urbanization asymmetrical change |
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