Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-8389-2018 |
Influence of the wintertime North Atlantic Oscillation on European tropospheric composition: an observational and modelling study | |
Pope, Richard J.1,2; Chipperfield, Martyn P.1,2; Arnold, Stephen R.1; Glatthor, Norbert3; Feng, Wuhu1,4; Dhomse, Sandip S.1; Kerridge, Brian J.5; Latter, Barry G.5; Siddans, Richard5 | |
2018-06-15 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:11页码:8389-8408 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Germany |
英文摘要 | We have used satellite observations and a simulation from the TOMCAT chemistry transport model (CTM) to investigate the influence of the well-known wintertime North Atlantic Oscillation (NAO) on European tropospheric composition. Under the positive phase of the NAO (NAO-high), strong westerlies tend to enhance transport of European pollution (e.g. nitrogen oxides, NOx; carbon monoxide, CO) away from anthropogenic source regions. In contrast, during the negative phase of the NAO (NAO-low), more stable meteorological conditions lead to a build-up of pollutants over these regions relative to the wintertime average pollution levels. However, the secondary pollutant ozone shows the opposite signal of larger values during NAO-high. NAO-high introduces Atlantic ozone-enriched air into Europe, while under NAO-low westerly transport of ozone is reduced, yielding lower values over Europe. Furthermore, ozone concentrations are also decreased by chemical loss through the reaction with accumulated primary pollutants such as nitric oxide (NO) in NAO-low. Peroxyacetyl nitrate (PAN) in the upper troposphere-lower stratosphere (UTLS) peaks over Iceland and southern Greenland in NAO-low, between 200 and 100 hPa, consistent with the trapping by an anticyclone at this altitude. Model simulations show that enhanced PAN over Iceland and southern Greenland in NAO-low is associated with vertical transport of polluted air from the midtroposphere into the UTLS. Overall, this work shows that NAO circulation patterns are an important governing factor for European wintertime composition and air pollution. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435406800002 |
WOS关键词 | CHEMICAL-TRANSPORT MODEL ; REACTIVE NITROGEN ; CARBON-MONOXIDE ; VARIABILITY ; NO2 ; RETRIEVAL ; OZONE ; PERFORMANCE ; TRENDS ; MIPAS |
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/30685 |
专题 | 地球科学 |
作者单位 | 1.Univ Leeds, Sch Earth & Environm, Leeds, W Yorkshire, England; 2.Univ Leeds, Natl Ctr Earth Observat, Leeds, W Yorkshire, England; 3.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany; 4.Univ Leeds, Natl Ctr Atmospher Sci, Leeds, W Yorkshire, England; 5.STFC Rutherford Appleton Lab, Remote Sensing Grp, Harwell Oxford, England |
推荐引用方式 GB/T 7714 | Pope, Richard J.,Chipperfield, Martyn P.,Arnold, Stephen R.,et al. Influence of the wintertime North Atlantic Oscillation on European tropospheric composition: an observational and modelling study[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(11):8389-8408. |
APA | Pope, Richard J..,Chipperfield, Martyn P..,Arnold, Stephen R..,Glatthor, Norbert.,Feng, Wuhu.,...&Siddans, Richard.(2018).Influence of the wintertime North Atlantic Oscillation on European tropospheric composition: an observational and modelling study.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(11),8389-8408. |
MLA | Pope, Richard J.,et al."Influence of the wintertime North Atlantic Oscillation on European tropospheric composition: an observational and modelling study".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.11(2018):8389-8408. |
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