DOI: 10.1016/j.atmosenv.2014.10.049
Scopus记录号: 2-s2.0-84910625255
论文题名: Modelling black carbon concentrations in two busy street canyons in brussels using CANSBC
作者: Brasseur O ; , Declerck P ; , Heene B ; , Vanderstraeten P
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 101 起始页码: 72
结束页码: 81
语种: 英语
英文关键词: Black carbon
; Modelling
; Street canyon
; Traffic
Scopus关键词: Carbon
; Dispersions
; Models
; Telecommunication traffic
; Black carbon
; Linear relationships
; Measurement networks
; Meteorological condition
; Model calculations
; Operational street pollution models
; Street canyon
; Unstable conditions
; Computer integrated manufacturing
; black carbon
; atmospheric modeling
; atmospheric pollution
; black carbon
; canyon
; model validation
; traffic emission
; air pollution
; Article
; Belgium
; concentration (parameters)
; dispersion
; evolution
; meteorological phenomena
; simulation
; traffic
; validation study
; Belgium
; Brussels [Belgium]
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: This paper focused on modelling Black Carbon (BC) concentrations in two busy street canyons, the Crown and Belliard Street in Brussels. The used original Operational Street Pollution Model was adapted to BC by eliminating the chemical module and is noted here as CANSBC. Model validations were performed using temporal BC data from the fixed measurement network in Brussels. Subsequently, BC emissions were adjusted so that simulated BC concentrations equalled the observed ones, averaged over the whole period of simulation. Direct validations were performed for the Crown Street, while BC model calculations for the Belliard Street were validated indirectly using the linear relationship between BC and NOx. Concerning the Crown Street, simulated and observed half-hourly BC concentrations correlated well (r=0.74) for the period from July 1st, 2011 till June 30th, 2013. In particular, CANSBC performed very well to simulate the monthly and diurnal evolutions of averaged BC concentrations, as well as the difference between weekdays and weekends. This means that the model correctly handled the meteorological conditions as well as the variation in traffic emissions. Considering dispersion, it should however be noted that BC concentrations are better simulated under stable than under unstable conditions. Even if the correlation on half-hourly NOx concentrations was slightly lower (r=0.60) than the one of BC, indirect validations of CANSBC for the Belliard Street yielded comparable results and conclusions as described above for the Crown Street. Based on our results, it can be stated that CANSBC is suitable to accurately simulate BC concentrations in the street canyons of Brussels, under the following conditions: (i) accurate vehicle counting data is available to correctly estimate traffic emissions, and (ii) vehicle speeds are measured in order to improve emission estimates and to take into account the impact of the turbulence generated by moving vehicles on the local dispersion of BC. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82116
Appears in Collections: 气候变化事实与影响
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作者单位: Dept. Laboratory and Air Quality, Brussels Environment, Gulledelle 100, Brussels, Belgium; Earth and Life Institute, Université Catholique de Louvain, Place de l'Université 1, Louvain-la-Neuve, Belgium
Recommended Citation:
Brasseur O,, Declerck P,, Heene B,et al. Modelling black carbon concentrations in two busy street canyons in brussels using CANSBC[J]. Atmospheric Environment,2015-01-01,101