2006—2008年秋季广州市重大气污染过程特征研究

杨武; 罗秋红; 李晓娜; 范绍佳

doi:10.3969/j.issn.1004-4965.2012.01.014

2006—2008年秋季广州市重大气污染过程特征研究

doi: 10.3969/j.issn.1004-4965.2012.01.014

1.
广东省气象科技服务中心,广东广州 510080
2.
广州中心气象台,广东广州 510080
3.
中山大学环境科学与工程学院,广东广州 510275

计量
- 文章访问数: 1467
- HTML全文浏览量: 4
- PDF下载量: 1370
- 被引次数: 0
出版历程
- 收稿日期: 2010-05-12
- 修回日期: 2010-12-22

RESEARCH OF THE CHARACTERISTICS OF HEAVY AIR POLLUTION PROCESS IN THE FALL 2006—2008

1.
Guangdong Provincial Meteorological Science and Technology Service Center, Guangzhou 510080, China
2.
Guangzhou Central Meteorological Observatory, Guangzhou 510080, China
3.
School of Environmental Sciences and Engineering, Sun Yat-sen University, Guangzhou 510275, China

摘要

摘要: 利用地面图、高空天气图(850 hPa、500 hPa)以及气象要素对2006—2008年秋季(9—11月)广州市4次典型的大气污染过程进行研究,分析其大气污染过程的特征及其相对应的天气系统、与气象要素之间的关系。结果表明,广州市秋季重大气污染多数发生在：(1) 广州受冷空气影响或回暖期,持续小风或出现静风会导致污染物大量积聚,且多出现能见度明显下降;(2) 由于偏北风的输送作用,处于下风向的万顷沙站较易出现重大气污染过程,表现出明显的区域性污染输送特征;(3) 冷高压脊、回流天气形势、台风外围下沉气流影响期间;(4) 近地面层出现逆温层或等温层。
- 大气污染 /
- 天气系统 /
- 特征研究
Abstract: Using the surface, high-altitude weather maps (850 hPa, 500 hPa) and meteorological elements, 4 typical air pollution processes in Guangzhou in autumn (September to November) from 2006 to 2008 are investigated, and the characteristics of each process in relation with corresponding weather systems as well as the meteorological elements are analyzed. The results are shown as follows. (1) Heavy air pollution in Guangzhou in autumn always occurs when cold air affects or when it is getting warmer, with the wind speed persistently light or calm that leads to accumulation of multiple pollutants; visibility decreases significantly when heavy air pollution happens. (2) As a result of the channeling effect of northerly winds in fall in Guangzhou, Wanqingsha station, located downwind, is likely to experience heavy air pollution processes that show significant characteristics of regional pollution transport. (3) The impact of ridges of cold high pressures, return-flow weather situations, and the outer downward flow of typhoons are also important factors beneficial to the occurrence of heavy pollution in Guangzhou in fall. (4) Heavy air pollution is usually accompanied with the appearance of inversion layers near the surface.
- air pollution /
- weather system /
- feature study

HTML全文

参考文献(7)

[1]	吴兑,邓雪娇,毕雪岩,等. 细粒子污染形成灰霾天气导致广州地区能见度下降[J]. 热带气象学报,2007,23(1)：1-6.
[2]	范绍佳,王安宇,樊琦,等. 珠江三角洲大气边界层概念模型的建立及其应用[J]. 热带气象学报2005, 21(3): 286-292.
[3]	罗森波,罗秋红,谢炯光,等. 广州市大气污染与气象条件关系的统计分析[J]. 热带气象学报2006, 22(6): 567-573.
[4]	纪忠萍,罗森波,邝建新,等. 广州空气污染的变化特征及预报[J]. 热带气象学报, 2006, 22(6): 574-581.
[5]	FENG Y R, WANG A Y, WU D, et al. The influence of tropical cyclone Melor on PM10 concentrations during an aerosol episode over the Pearl River Delta region of China: Numerical modeling versus observational analysis[J]. Atmospheric Environment, 2007,41(21)：4 349-4 365.
[6]	FAN S J, WANG B M, M. TESCHE, et al. Meteorological conditions and structures of atmospheric boundary layer in October 2004 over Pearl River Delta area[J]. Atmospheric Environment, 2008,42(25): 6 174-6 186.
[7]	李琼,李福娇,叶燕翔,等. 珠江三角洲地区天气类型与污染潜势及污染浓度的关系[J]. 热带气象学报,1999, 15(4): 363-369.