| 广州雾日的时空变化 |
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| 引用本文： | 黄伟峰.广州雾日的时空变化[J].中山大学学报论丛,1990(4). |
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| 作者姓名： | 黄伟峰 |
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| 摘 要： | 讨论了广州雾日的时空变化.研究指出,由于广州近地层气温较高,加上城市热岛和干岛效应的影响,年平均雾日较少.34年的资料表明,广州平均雾日为4.8天,春季最多,冬季次之,夏季最少.1～4月为雾季,雾一股出现在清晨5～7时.50年代至70年代雾日增加,80年代开始雾日有减少的趋势.广州的雾可以分成4种类型:即辐射雾(占24％),锋面雾(占14％),平流雾(占14％)和平流辐射雾(占48％).最后指出,雾是稳定的象征,它与大气温度层结有密切的关系。
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| 关 键 词： | 雾 热岛效应 干岛效应 温度层结 |
The Variation of Time and Space of the Foggy Days in Guangzhou |
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| Huang Weifeng.The Variation of Time and Space of the Foggy Days in Guangzhou[J].Supplement to the Journal of Sun Yatsen University,1990(4). |
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| Authors: | Huang Weifeng |
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| Institution: | Huang Weifeng |
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| Abstract: | The variation of time are space of the foggy days in Guangzhou is discussed. Study points out that there are fewer foggy days in Guangzhou per year because the temperature of surface layer is higher and because of the influences of urban heat island and dry island effects. The records of recent 34 years show that there are 4.8 foggy days per year on the average. The foggy days are the most in spring, the next most in winter, and the least in summer. The foggy season occurs from January to April. From 1950s to 1970s, The foggy days increased. Since 1980s, the foggy days decreased. The fog usually occurs from 5 to 7 o'clock in the early morning. The fog of Guangzhou can be classified into four types: radiation fog (acco-l uting for 24%), frontal fog (accouting for 14%), advection fog (accouting for 14%) and a dvection radiation fog (accouting for 48%). Finally, it is pointed out that fog is an emblem of atmospheric stability. The fog of Guangzhou is closely related to temperature stratification. |
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| Keywords: | fog heat island effect dry island effect temperature stratification |
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