Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.07.024 |
The association of weather patterns with haze episodes: Recognition by PM2.5 oriented circulation classification applied in Xiamen, Southeastern China | |
Chang, Wenyuan; Zhan, Jianqiong | |
2017-11-15 | |
发表期刊 | ATMOSPHERIC RESEARCH
![]() |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 197 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Investigating the association between weather circulation patterns and high PM2.5 episodes is useful for interpreting the connection between physical weather and chemical weather. Principal component analysis (PCA) is often applied to decompose circulation modes but has limitations for studying high PM2.5 events related circulation patterns. This study describes an improved circulation classification integrated with PCA and k-means algorithm oriented to high local PM2.5. The classification scheme was applied in Xiamen, southeastern China, when local PM2.5 exceeded 75 mu g m(-3) (the 24-hour limit Chinese Ambient Air Quality Grade II standard) during the winter 2013. Nine typical circulation patterns were classified. Circulation patterns related to the highest PM2.5 concentrations were associated with a negative pressure anomaly at 850 hPa over the Sea of Japan which yielded a strong transport of PM2.5 from northern China during windy days. The improved classification methodology links large-scale circulation to local PM2.5 in target city and is able to distinguish possibly different circulation patterns over continual haze episodes. This clustering method can be applied in any cities and would be useful for predicting chemical weather and serving local environmental policymakers. |
英文关键词 | PM2.5 Haze Principal component analysis Circulation decomposition Circulation classification |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000412250700035 |
WOS关键词 | FORMATION MECHANISM ; JANUARY 2013 ; AIR-QUALITY ; AEROSOL COMPOSITION ; REGIONAL TRANSPORT ; RELATIVE-HUMIDITY ; SYNOPTIC WEATHER ; PLAIN ; IMPACT ; POLLUTION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/15257 |
专题 | 地球科学 |
作者单位 | Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Chang, Wenyuan,Zhan, Jianqiong. The association of weather patterns with haze episodes: Recognition by PM2.5 oriented circulation classification applied in Xiamen, Southeastern China[J]. ATMOSPHERIC RESEARCH,2017,197. |
APA | Chang, Wenyuan,&Zhan, Jianqiong.(2017).The association of weather patterns with haze episodes: Recognition by PM2.5 oriented circulation classification applied in Xiamen, Southeastern China.ATMOSPHERIC RESEARCH,197. |
MLA | Chang, Wenyuan,et al."The association of weather patterns with haze episodes: Recognition by PM2.5 oriented circulation classification applied in Xiamen, Southeastern China".ATMOSPHERIC RESEARCH 197(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论