| 北京市大气能见度规律及下降原因 |
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| 引用本文： | 宋 宇,唐孝炎,张远航,胡 敏,方 晨,曾立民.北京市大气能见度规律及下降原因[J].环境科学研究,2003,16(2):10-12. |
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| 作者姓名： | 宋 宇 唐孝炎 张远航 胡 敏 方 晨 曾立民 |
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| 作者单位： | 北京大学,环境科学中心,环境模拟与污染控制国家重点联合实验室,北京,100871 |
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| 摘 要： | 利用历史资料和外场观测数据。对北京市大气能见度的规律进行了分析。结果发现。北京市大气能见度较差的时间占全年的近一半。夏季能见度最好，冬季最差。通常中午能见度最好。高浓度的颗粒物是北京市大气能见度下降的主要原因。局地重污染天气和沙尘暴天气虽然发生几率小，但可以使北京市大气能见度下降得很低。
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| 关 键 词： | 能见度 北京 颗粒物污染 |
| 文章编号： | 1001-6929(2003)02-0010-03 |
| 收稿时间： | 2002/10/23 0:00:00 |
The Study of the Status and Degradation of Visibility in Beijing |
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| SONG Yu,TANG Xiao-yan,ZHANG Yuan-hang,HU Min,FANG Chen and ZENG Li-min.The Study of the Status and Degradation of Visibility in Beijing[J].Research of Environmental Sciences,2003,16(2):10-12. |
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| Authors: | SONG Yu TANG Xiao-yan ZHANG Yuan-hang HU Min FANG Chen and ZENG Li-min |
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| Institution: | Environmental Sciences,Peking University,Beijing 100871,China;Environmental Sciences,Peking University,Beijing 100871,China;Environmental Sciences,Peking University,Beijing 100871,China;Environmental Sciences,Peking University,Beijing 100871,China;Environmental Sciences,Peking University,Beijing 100871,China;Environmental Sciences,Peking University,Beijing 100871,China |
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| Abstract: | mong almost half of the year.The summer is the best season for the visual range in Beijing,while the winter is the worst one.The highest vistibility was found usually around the noon.The high-concentration particulates are the main reason to the visibility degradation.Although the possibility of sand storm and local severe polluted events is quite low in Beijing,it could lead a very low visual range. |
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| Keywords: | visibility Beijing particulate pollution |
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