热带气象学报2011，Vol.27Issue(1)：109-117,9.DOI:10.3969/j.issn.1004-4965.2011.01.013
热带气旋对香港地区臭氧污染影响的初步研究
THE PRELIMINARY STUDY ON THE EFFECT OF TROPICAL CYCLONES ON OZONE POLLUTION IN HONG KONG
摘要
Abstract
Using the dataset of 264 tropical cyclones in the Western North Pacific and the hourly surface ozone (O3) concentration data of 11 environmental monitoring stations in Hong Kong from 1998 to 2008, the effect of tropic cyclones on O3 pollution in Hong Kong is discussed. It shows that the O3 concentration increases and more than half of cases induce heavy pollution in Hong Kong when there are tropical cyclones in the Western North Pacific. The effect of tropical cyclones on O3 pollution depends on cyclonic intensity and varies with season. By trajectory cluster analysis with SPSS, the tropical cyclones are classified into 4 categories, among which Clusterl and Cluster3 are both subject to heavy O3 pollution in Hong Kong with similar influences in general; and the O3 concentration is most likely to reach a maximum when tropical cyclone is to the northeast of Taiwan Island or near the Bashi Channel. Analysis of physical elements and conditional probability field of back trajectories shows that it is the horizontal transport by north or northeast winds and the local accumulation by downdrafis that cause the significant increase of the ground level concentration of O3 in Hong Kong.关键词
大气环境学/统计特征/SPSS聚类/臭氧污染/后向轨迹/条件概率场/热带气旋Key words
atmospheric environmental science/ statistic characteristics/ SPSS/ ozone pollution/back trajectory/ conditional probability field/ tropical cyclone分类
资源环境引用本文复制引用
杨柳,王体健,吴蔚,赵恒,江飞..热带气旋对香港地区臭氧污染影响的初步研究[J].热带气象学报,2011,27(1):109-117,9.基金项目
国家863计划(2006AA06A307、2007AA06A408) （2006AA06A307、2007AA06A408）
气象行业专项(GYHY200806001-1、GYHY(QX)2007-6-36)共同资助 （GYHY200806001-1、GYHY(QX）
