| 近60a陕西关中城市群大气能见度变化趋势与大气污染研究 |
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| 引用本文： | 彭艳,王钊,李星敏,董妍,王繁强,杜川利.近60a陕西关中城市群大气能见度变化趋势与大气污染研究[J].干旱区资源与环境,2011(9):149-155. |
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| 作者姓名： | 彭艳 王钊 李星敏 董妍 王繁强 杜川利 |
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| 作者单位： | 陕西省气象科学研究所;陕西省农业遥感信息中心; |
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| 基金项目： | 陕西省气象局重点项目(2010Z-6);陕西省气象局基金项目(2010M-22)资助 |
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| 摘 要： | 根据近60a能见度观测资料,分析了陕西关中城市群能见度月平均、季平均变化特征,并通过讨论能见度与污染指数的关系,间接分析了关中地区空气污染的变化特征。结果表明：陕西关中地区能见度存在明显的月、季变化,能见度与空气污染存在较明显的负相关关系,1980年后,关中西部能见度呈逐年变好的趋势,关中东部能见度有逐年降低的趋势,东...
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| 关 键 词： | 关中地区 大气能见度 气溶胶 空气污染 |
Variation trends of atmospheric visibility and air pollution in cities of Guanzhong,Shaanxi Province in recent 60 years |
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| PENG Yan,WANG Zhao,LI Xingmin.Variation trends of atmospheric visibility and air pollution in cities of Guanzhong,Shaanxi Province in recent 60 years[J].Journal of Arid Land Resources and Environment,2011(9):149-155. |
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| Authors: | PENG Yan WANG Zhao LI Xingmin |
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| Institution: | PENG Yan1,WANG Zhao2,LI Xingmin1(1.Meteorological Institute of Shaanxi Province,Xi'an 710015,P.R.China,2.Shaanxi Remote Sensing Information Center for Agriculture,P.R.China) |
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| Abstract: | Visibility data have been examined for 9 meteorological stations in central of Shaanxi Province.The monthly average,seasonal average and trends of visibility in nearly 50 years has been analyzed.The results showed that the visibilities in 9 stations had obvious monthly and seasonal variations.And the pollution index was negatively correlated with visibility.The visibility in Baoji,Xi′an,Taibai became better in the past thirty years,while Xianyang,Lantian,Weinan,Baishui,Huayin,Huashan became worse in the past thirty years.The result also showed that the effect of the special terrain on transport and diffusion led to the aerosol concentration and air pollution in east of Guanzhong Region serious than that in the west of Guanzhong Region. |
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| Keywords: | Guanzhong Region visibility aerosol air pollution |
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