globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016JD025987
论文题名:
Entrainment of stratospheric air and Asian pollution by the convective boundary layer in the southwestern U.S.
作者: Langford A.O.; Alvarez R.J.; II; Brioude J.; Fine R.; Gustin M.S.; Lin M.Y.; Marchbanks R.D.; Pierce R.B.; Sandberg S.P.; Senff C.J.; Weickmann A.M.; Williams E.J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期:2
起始页码: 1312
结束页码: 1337
语种: 英语
英文关键词: air quality ; policy ; stratosphere-to-troposphere transport ; surface ozone
Scopus关键词: air quality ; ambient air ; concentration (composition) ; convective boundary layer ; geophysics ; lidar ; NOAA satellite ; ozone ; pollution incidence ; stratosphere-troposphere interaction ; California ; Clark County [Nevada] ; Mojave Desert ; Nevada ; United States
英文摘要: A series of deep stratospheric intrusions in late May 2013 increased the daily maximum 8 h surface ozone (O3) concentrations to more than 70 parts per billion by volume (ppbv) at rural and urban surface monitors in California and Nevada. This influx of ozone-rich lower stratospheric air and entrained Asian pollution persisted for more than 5 days and contributed to exceedances of the 2008 8 h national ambient air quality standard of 75 ppbv on 21 and 25 May in Clark County, NV. Exceedances would also have occurred on 22 and 23 May had the new standard of 70 ppbv been in effect. In this paper, we examine this episode using lidar measurements from a high-elevation site on Angel Peak, NV, and surface measurements from NOAA, the Clark County, Nevada Department of Air Quality, the Environmental Protection Agency Air Quality System, and the Nevada Rural Ozone Initiative. These measurements, together with analyses from the National Centers for Environmental Prediction/North American Regional Reanalysis; NOAA Geophysical Fluid Dynamics Laboratory AM3 model; NOAA National Environmental Satellite, Data, and Information Service Real-time Air Quality Modeling System; and FLEXPART models, show that the exceedances followed entrainment of ~20 to 40 ppbv of lower stratospheric ozone mingled with another 0 to 10 ppbv of ozone transported from Asia by the unusually deep convective boundary layers above the Mojave desert. Our analysis suggests that this vigorous mixing can affect both high and low elevations and help explain the springtime ozone maximum in the southwestern U.S. ©2016. American Geophysical Union. All Rights Reserved.
资助项目: NNX12AF15G ; NNX14AR47G
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62721
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: NOAA Earth System Research Laboratory/Chemical Sciences Division, Boulder, CO, United States; Cooperative Institute for Research in the Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Laboratoire de l'Atmosphere et des Cyclones, La Reunion, France; Department of Natural Resources and Environmental Science, University of Nevada, Reno, Reno, NV, United States; Present address, California Air Resources Board, Sacramento, CA, United States; Atmospheric and Oceanic Sciences, Princeton University, Princeton, NJ, United States; NOAA Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States; NOAA/NESDIS Center for Satellite Applications and Research, Cooperative Institute for Meteorological Satellite Studies, Madison, WI, United States

Recommended Citation:
Langford A.O.,Alvarez R.J.,II,et al. Entrainment of stratospheric air and Asian pollution by the convective boundary layer in the southwestern U.S.[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Langford A.O.]'s Articles
[Alvarez R.J.]'s Articles
[II]'s Articles
百度学术
Similar articles in Baidu Scholar
[Langford A.O.]'s Articles
[Alvarez R.J.]'s Articles
[II]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Langford A.O.]‘s Articles
[Alvarez R.J.]‘s Articles
[II]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.