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DOI | 10.1016/j.trd.2013.06.003 |
Modeling the impact of roadway emissions in light wind, stable and transition conditions | |
Venkatram, Akula1; Snyder, Michelle2; Isakov, Vlad2 | |
发表日期 | 2013-10-01 |
ISSN | 1361-9209 |
卷号 | 24页码:110-119 |
英文摘要 | This paper examines the processes that govern air pollution dispersion under light wind, stable and transition conditions by using a state-of-the-art dispersion model to interpret measurements from a tracer experiment conducted next to US highway 99 in Sacramento in 1981-1982 during the early morning and late evening when winds were light and variable. We examine the roles of stability, wind meander, and boundary layer height on concentrations measured during this study. Our analysis suggests that currently used equations for vertical plume spread need modification when the winds are light. The shallow boundary layer associated with these conditions limits vertical mixing and hence reduces the rate at which concentrations fall off with distance from the road. (C) 2013 Elsevier Ltd. All rights reserved. |
英文关键词 | Roadway emissions;Dispersion modeling;Low wind speeds;Tracer experiment |
语种 | 英语 |
WOS记录号 | WOS:000325667900014 |
来源期刊 | TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT |
来源机构 | 美国环保署 |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/58339 |
作者单位 | 1.Univ Calif Riverside, Riverside, CA 92521 USA; 2.US EPA, Off Res & Dev, Natl Exposure Res Lab, Atmospher Modeling & Anal Div, Res Triangle Pk, NC 27711 USA |
推荐引用方式 GB/T 7714 | Venkatram, Akula,Snyder, Michelle,Isakov, Vlad. Modeling the impact of roadway emissions in light wind, stable and transition conditions[J]. 美国环保署,2013,24:110-119. |
APA | Venkatram, Akula,Snyder, Michelle,&Isakov, Vlad.(2013).Modeling the impact of roadway emissions in light wind, stable and transition conditions.TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT,24,110-119. |
MLA | Venkatram, Akula,et al."Modeling the impact of roadway emissions in light wind, stable and transition conditions".TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT 24(2013):110-119. |
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