LI Pei-rong,XIANG Wei-guo.Influence of Inversion Layer Characteristics in Sichuan Basin on Air Pollution[J].Journal of Chengdu University of Information Technology,2018,(02):220-226.[doi:10.16836/j.cnki.jcuit.2018.02.018]
四川盆地逆温层特征对空气污染的影响
- Title:
- Influence of Inversion Layer Characteristics in Sichuan Basin on Air Pollution
- 文章编号:
- 2096-1618(2018)02-0220-07
- Keywords:
- atmospheric physics; meteorology and pollution; vertical diffusion; temperature inversion; air pollution
- 分类号:
- P423.6
- 文献标志码:
- A
- 摘要:
- 利用2015年1月-2017年4月的成都、宜宾、达州、重庆的气象探空资料和空气质量指数,分析了四川盆地上空中的逆温层特征,包括逆温频率、逆温底高、逆温厚度、逆温强度及逆温层数。通过比较它们与空气质量指数月、季节相互变化的关系来探究逆温层特征与空气污染之间的联系。结果表明:当贴地层出现逆温时,污染会更严重; 贴地逆温层底高时,对应着近地逆温层底低,空气污染程度较轻; 贴地逆温层底低时,对应着近地逆温层底高,空气污染程度较重; 逆温厚度很大时,空气污染更严重; 贴地逆温强度变强时,空气污染加重; 出现的逆温层数越多,污染一般会越严重。
- Abstract:
- By utilizing meteorological stations data of several representative cities in Sichuan Basin and AQI data, we analyze the relationship between temperature inversion and air pollution. The results can be concluded as follows: when approaching the ground appears inversion, the pollution is more serious. When it is close to the ground and its corresponding temperature inversion layer bottom height is high, the air pollution is light, and when it is close to the ground and its corresponding temperature inversion layer bottom height is low, the air pollution is heavy. When the thickness of the temperature inversion layer is very large, the air pollution is more serious. When the intensity of the inversion of the ground temperature becomes stronger, the AQI becomes larger and the air pollution is aggravated. When the intensity of the inversion of the ground temperature becomes weakened, the AQI becomes smaller and the air pollution is weakened; The more the number of temperature inversion layers is, the more serious the pollution is.
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备注/Memo
收稿日期:2017-11-08基金项目:四川省环境保护科学研究院资助项目(2017H033)