Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-565-2019 |
Seesaw haze pollution in North China modulated by the sub-seasonal variability of atmospheric circulation | |
Zhang, Ge1; Gao, Yang1,2; Cai, Wenju2,3,4; Leung, L. Ruby5; Wang, Shuxiao6; Zhao, Bin7,8; Wang, Minghuai9; Shan, Huayao1; Yao, Xiaohong1,2; Gao, Huiwang1,2 | |
2019-01-15 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:1页码:565-576 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Australia; USA |
英文摘要 | Utilizing a recent observational dataset of particulate matter with diameters less than 2.5 mu m (PM2.5) in North China, this study reveals a distinct seesaw feature of abnormally high and low PM2.5 concentrations in the adjacent two months of December 2015 and January 2016, accompanied by distinct meteorological modulations. The seesaw pattern is postulated to be linked to a super El Nino and the Arctic Oscillation (AO). During the mature phase of El Nino in December 2015, the weakened East Asian winter monsoon (EAWM) and the associated low-level southerly wind anomaly reduced planetary boundary layer (PBL) height, favoring strong haze formation. This circulation pattern was completely reversed in the following month, in part due to a sudden phase change of the AO from positive to negative and the beginning of a decay of the El Nino, which enhanced the southward shift of the upper tropospheric jet from December to January relative to climatology, leading to an enhanced EAWM and substantially lower haze formation. This sub-seasonal change in circulation is also robustly found in 1982-1983 and 1997-1998, implicative of a general physical mechanism dynamically linked to El Nino and the AO. Numerical experiments using the Weather Research and Forecasting (WRF) Community Multiscale Air Quality (CMAQ) model were used to test the modulation of the meteorological conditions on haze formation. With the same emission, simulations for three super El Nino periods (1983, 1997 and 2015) robustly show higher PM2.5 concentrations under the mature phase of the super El Nino, but substantially lower PM2.5 concentrations during the decay phase of El Nino (and the sudden AO phase change), further verifying the modulation effect of the sub-seasonal circulation anomaly on PM2.5 concentrations in North China. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000455955900001 |
WOS关键词 | FINE PARTICULATE MATTER ; EL-NINO ; WINTER MONSOON ; AIR-POLLUTION ; ARCTIC OSCILLATION ; EMISSIONS ; QUALITY ; MODEL ; ENSO ; METEOROLOGY |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/18363 |
专题 | 地球科学 |
作者单位 | 1.Ocean Univ China, Key Lab Marine Environm Sci & Ecol, Minist Educ, Qingdao 266100, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266100, Peoples R China; 3.Ocean Univ China, Phys Oceanog Lab, CIMST, Qingdao 266100, Peoples R China; 4.CSIRO Marine & Atmospher Res, Aspendale, Vic 3195, Australia; 5.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99354 USA; 6.Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China; 7.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA; 8.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 9.Nanjing Univ, Sch Atmospher Sci, Nanjing 210023, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Ge,Gao, Yang,Cai, Wenju,et al. Seesaw haze pollution in North China modulated by the sub-seasonal variability of atmospheric circulation[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(1):565-576. |
APA | Zhang, Ge.,Gao, Yang.,Cai, Wenju.,Leung, L. Ruby.,Wang, Shuxiao.,...&Gao, Huiwang.(2019).Seesaw haze pollution in North China modulated by the sub-seasonal variability of atmospheric circulation.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(1),565-576. |
MLA | Zhang, Ge,et al."Seesaw haze pollution in North China modulated by the sub-seasonal variability of atmospheric circulation".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.1(2019):565-576. |
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