| 1961年-2012年山西雾霾的时空变化特征及成因分析 |
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| 引用本文： | 王咏梅,武捷,褚红瑞.1961年-2012年山西雾霾的时空变化特征及成因分析[J].山西气象,2013(4):23-30. |
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| 作者姓名： | 王咏梅 武捷 褚红瑞 |
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| 作者单位： | [1]运城市气象局,山西运城044000 [2]山西省气象信息中心。山西太原030006,山西运城044000 |
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| 摘 要： | 利用1961年-2012年山西逐日天气现象、能见度、相对湿度和日平均气温资料，采用Kendall-tau方法和相关分析法研究山西雾霾日数的时空变化特征及成因。结果表明：雾多发区在中南部，北部雾日较少。霾、烟幕日数高值区出现在以大同、太原、临汾为中心线的带状区域。季节分布来看，轻雾、雾日数峰值出现在8、9月份，谷值在5月份出现；霾和烟幕日数的峰值出现在12、1月份，谷值在8、9月份出现。近50余年以来，山西雾霾日数呈现增多趋势，雾日增加趋势较弱，60、70年代为增多趋势，进入21世纪则为减少趋势；轻雾和霾日数均为显著单调上升趋势；烟幕日数也为显著增多趋势，但表现为抛物线型，90年代后期以前为增多，之后转为下降趋势。山西霾和烟幕日数与E1Nino事件有很好的对应关系，E1Nino事件发生年往往霾和烟幕日数较多，赤道中东太平洋的海温异常通过海气相互作用，引起东亚地区上空的大气环流异常，形成利于霾和烟幕出现的天气条件。山西冬季气温偏高往往导致霾和烟幕天气的增多，气候变暖对霾和烟幕天气的影响不容置疑。
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| 关 键 词： | 山西 雾霾 Kendall-tau方法 时空变化 El Nine事件 |
Spatial and temporal variations and cause analysis of fog and haze in Shanxi in 1961 - 2012 |
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| Wang Yongmei,Wu Jie,Chu Hongrui.Spatial and temporal variations and cause analysis of fog and haze in Shanxi in 1961 - 2012[J].Shanxi Meteorological Quarterly,2013(4):23-30. |
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| Authors: | Wang Yongmei Wu Jie Chu Hongrui |
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| Institution: | 1. Yuncheng Meteorological Office, Yuncheng 04411110; 2. Meteorological Information Center of Shand Province, Taiyuan 0311tl02) |
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| Abstract: | Using the data in terms of daily weather phenomenon, visibility, relative humidi temperature in Shanxi in 1961-2012, spatial and temporal variations and causes have been analyze Kendall-tau and correlation analysis. The results indicate that： The fog is more likely to occur in south d ty and mean by means of central Shanxi,while the occurrence is relatively few in north. The large value of days of haze and smoke appears in a banded area with its central line lying in Datong, Taiyuan, and Linfen. Respecting the seasonal distribution, the peak value of days of light fog and fog is presented in August and September, with its valley value in May. And that of haze and smoke is presented in December and January, with its valley value in August and September. In recent 50 years, days of fog and haze tend to increase, and the trend of fog is slight with an increasing trend in 60-70s and a decreasing trend since the 21st century. The trend of light fog and haze increases monotonically as well as smoke. But the trend of smoke is shaped as parabolic with an in Shanxi are related well with EI crease Nino. before the end of 90s and a following decrease. The days of fog and haze in The days are relatively more as with the occurrence of El Nino. The anomaly in sea surface temperature in the equatorial central and eastern Pacific can lead to the anomaly in atmosphere circulation in East Asia, and hence the occurrence of haze and smoke. The higher winter temperature in Shanxi often induces an increase in haze and smoke. It is no doubt that climate warming has an influence on the haze and smoke. |
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| Keywords: | Shanxi Fog and haze Kendall-tau Spatial and temporal variations EI Nino |
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