上海市月降塵量與氣象因子間關系研究

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上海市月降塵量與氣象因子間關系研究
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中圖分類號:P49
基金項目:中國科學院資助項目;江蘇省333新世紀科學技術帶頭人培養(yǎng)工程

RELATIONSHIPS BETWEEN MONTHLY AMOUNT OF DUSTFALL AND METEOROLOGICAL FACTORS IN SHANGHAI

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本文利用上海市1993～2003年月降塵量和同期氣象資料，運用統(tǒng)計學方法和圖表說明、物理解釋相結合的方法，研究了降塵量的年、月際變化，表明：降塵量的年際變化存在明顯的下降趨勢；降塵量月際變化的高值出現(xiàn)在春、夏季月份，與北方燃煤量大的城市差別較大。同時更為詳細地研究了降塵量和氣象條件之間的關系，結果表明：風向、風速頻率和雨日數(shù)是影響降塵量的主要氣象因子，而溫度、濕度對降塵量沒有明顯的影響，并簡要說明了影響機制，解釋了年、月際變化。

Abstract:

This paper investigated variations of monthly dustfall and meterological factors in Shanghai by the combination of statistical method, graphic illustration on the basis of monthly dustfall and corresponding meteorological factors from 1993 to 2003，results show that，monthly distribution of dustfall was higher in the season of spring and summer while lower in winter and autumn due to meteorological reason, it is different from northern city fueling coal in larger quantity. More important，the relationships between dustfall and meteorological reason were explored，it was found that the frequency of southern wind direction and high wind velocity，rainfall or rain days play a significant role in the quantity of monthly dustfall，and that the role of relative humidity and temperature might be negligible. Meanwhile，the contribution mechanism and interpretation of monthly variation were gived in brevity. In the text，we also illustrated that the method，which was a combination of statistic and graph，was a valid visual means to shot light on the relationships between dustfall and meteorological factors.

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張國宏,談建國,鄭有飛,魏海萍,陰俊.上海市月降塵量與氣象因子間關系研究.氣象科學,2006,(3):328-333 Zhang Guohong, Tan Jianguo, Zheng Youfei, Wei Haiping, Yin Jun. RELATIONSHIPS BETWEEN MONTHLY AMOUNT OF DUSTFALL AND METEOROLOGICAL FACTORS IN SHANGHAI. Journal of the Meteorological Sciences,2006,(3):328-333

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收稿日期:2005-05-09
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