紫外線輻射特征及影響因素分析
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Characteristics of Solar Ultraviolet Radiation and Its Influencing Factors
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    摘要:

    對太原市2002~2004年紫外線觀測資料進行統計分析結果發現:紫外線輻射具有正午強早晚弱,夏季強冬季弱的特點;紫外線大值出現時間夏季明顯早于冬季;通過與同時段氣象因素對比分析,揭示了云狀和云量、氣壓、能見度、濕度、空氣污染對紫外線輻射的不同影響程度;紫外線輻射占太陽總輻射百分比具有冬季少夏季多和有云時非同比衰減的特點。紫外線的預報還要注重最大半小時平均值的預報,以預估紫外線對人體的最大可能傷害程度。

    Abstract:

    An analysis is made of the data of solar ultraviolet radiation (UV) observed at Taiyan for three years. The results show that UV is the highest in sunny midday, obvious higher in summer than in winter, and the occurrence time of the highest UV is earlier in summer than in winter. Some meteorological factors and air pollution of the same time is also analyzed, and the results shows that UV is influenced by cloud form, cloud cover, air pressure, air temperature, visibility, humidity, air pollution, etc. The ratio of UV to the global radiation is higher in summer than in winter, and the attenuation is not synchronous in cloudy days. It is suggested that halfhour averaged maximum UV and averaged UV from 10:00 to 14: 00 have the same importance for UV forecasting, so to estimate the possible harm of UV to human bodies.

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駱麗楠,梁明珠,張紅雨,史源香.紫外線輻射特征及影響因素分析[J].氣象科技,2007,35(4):571~573

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  • 收稿日期:2006-08-14
  • 定稿日期:2006-11-24
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