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DOI | 10.1175/JAS-D-17-0354.1 |
An Air Stagnation Index to Qualify Extreme Haze Events in Northern China | |
Feng, Jin1,2; Quan, Jiannong1; Liao, Hong3; Li, Yanjie4; Zhao, Xiujuan1 | |
2018-10-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:10页码:3489-3505 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Stagnation weather affects atmospheric diffusion ability, and hence causes the occurrence of haze events, which have been happening frequently in northern China (NC). This work puts forward an air stagnation index (ASI(TS)) to characterize the stagnation weather in NC, in which the processes of ventilation, vertical diffusion, and wet deposition potency are concerned. ASI(TS) can be applied to analyze air stagnation conditions with daily to monthly time scale. It is shown that the ASI(TS) and particulate matter smaller than 2.5 m in diameter (PM2.5) concentrations own similar lognormal probability distribution functions on both daily and monthly time scales. And the correlation analyses between the ASI(TS) and PM2.5 concentrations indicate that the ASI(TS) can reflect the monthly and daily variations in PM2.5 concentrations in NC. In addition, ASI(TS) could be used as a leading predictor of haze events since correlation coefficients of ASI(TS) leading PM2.5 concentrations by 1 day were significant and were larger than simultaneous correlation coefficients in almost all areas in NC. The robust relationship between ASI(TS) and PM2.5 concentrations exists possibly because the index can reflect the activities of synoptic systems. ASI(TS) could be a useful statistical indicator for variations in PM2.5 concentrations and haze events, and a good tool in analyzing the relationship between climate change and long-term variations in haze in NC. |
英文关键词 | Statistical forecasting Air pollution Air quality |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443931100003 |
WOS关键词 | PARTICULATE MATTER PM2.5 ; BOUNDARY-LAYER HEIGHT ; YANGTZE-RIVER DELTA ; UNITED-STATES IMPLICATIONS ; FORMATION MECHANISM ; WINTER HAZE ; INTERANNUAL VARIATIONS ; SYNOPTIC WEATHER ; NITROGEN-OXIDES ; EASTERN CHINA |
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/29403 |
专题 | 地球科学 |
作者单位 | 1.China Meteorol Adm, Inst Urban Meteorol, Beijing, Peoples R China; 2.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 3.Nanjing Univ Informat Sci & Technol, Sch Environm Sci & Engn, Collaborat Innovat Ctr Atmospher Environm & Equip, Jiangsu Key Lab Atmospher Environm Monitoring & P, Nanjing, Jiangsu, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Feng, Jin,Quan, Jiannong,Liao, Hong,et al. An Air Stagnation Index to Qualify Extreme Haze Events in Northern China[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(10):3489-3505. |
APA | Feng, Jin,Quan, Jiannong,Liao, Hong,Li, Yanjie,&Zhao, Xiujuan.(2018).An Air Stagnation Index to Qualify Extreme Haze Events in Northern China.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(10),3489-3505. |
MLA | Feng, Jin,et al."An Air Stagnation Index to Qualify Extreme Haze Events in Northern China".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.10(2018):3489-3505. |
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