GSTDTAP  > 地球科学
DOI10.5194/acp-18-11221-2018
Air quality simulations for London using a coupled regional-to-local modelling system
Hood, Christina1; MacKenzie, Ian2; Stocker, Jenny1; Johnson, Kate1; Carruthers, David1; Vieno, Massimo3; Doherty, Ruth2
2018-08-13
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2018
卷号18期号:15页码:11221-11245
文章类型Article
语种英语
国家England; Scotland
英文摘要

A coupled regional-to-local modelling system comprising a regional chemistry-climate model with 5 km horizontal resolution (EMEP4UK) and an urban dispersion and chemistry model with explicit road source emissions (ADMS-Urban) has been used to simulate air quality in 2012 across London. The study makes use of emission factors for NOx and NO2 and non-exhaust emission rates of PM10 and PM2.5 which have been adjusted compared to standard factors to reflect real-world emissions, with increases in total emissions of around 30% for these species. The performance of the coupled model and each of the two component models is assessed against measurements from background and near-road sites in London using a range of metrics concerning annual averages, high hourly average concentrations and diurnal cycles. The regional model shows good performance compared to measurements for background sites for these metrics, but under-predicts concentrations of all pollutants except O-3 at near-road sites due to the low resolution of input emissions and calculations. The coupled model shows good performance at both background and near-road sites, which is broadly comparable with that of the urban model that uses measured concentrations as regional background, except for PM2.5 where the under-prediction of the regional model causes the coupled model to also under-predict concentrations. Using the coupled model, it is estimated that 13% of the area of London exceeded the EU limit value of 40 mu g m(-3) for annual average NO2 in 2012, whilst areas of exceedances of the annual average limit values of 40 and 25 mu g m(-3) for PM10 and PM2.5 respectively were negligible.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000441403800002
WOS关键词NITROGEN-DIOXIDE CONCENTRATIONS ; PARTICULATE MATTER ; DISPERSION MODEL ; PASSENGER CARS ; EMISSIONS ; CHEMISTRY ; NO2 ; ADMS ; PERFORMANCE ; TRANSPORT
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/22759
专题地球科学
作者单位1.Cambridge Environm Res Consultants, Cambridge CB2 1SJ, England;
2.Univ Edinburgh, Sch GeoSci, Edinburgh EH8 9XP, Midlothian, Scotland;
3.Ctr Ecol & Hydrol, Edinburgh EH26 0QB, Midlothian, Scotland
推荐引用方式
GB/T 7714
Hood, Christina,MacKenzie, Ian,Stocker, Jenny,et al. Air quality simulations for London using a coupled regional-to-local modelling system[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(15):11221-11245.
APA Hood, Christina.,MacKenzie, Ian.,Stocker, Jenny.,Johnson, Kate.,Carruthers, David.,...&Doherty, Ruth.(2018).Air quality simulations for London using a coupled regional-to-local modelling system.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(15),11221-11245.
MLA Hood, Christina,et al."Air quality simulations for London using a coupled regional-to-local modelling system".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.15(2018):11221-11245.
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