globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.08.040
Scopus记录号: 2-s2.0-84930684038
论文题名:
An overview of the 2013 Las Vegas Ozone Study (LVOS): Impact of stratospheric intrusions and long-range transport on surface air quality
作者: Langford A; O; , Senff C; J; , Alvarez R; J; , Brioude J; , Cooper O; R; , Holloway J; S; , Lin M; Y; , Marchbanks R; D; , Pierce R; B; , Sandberg S; P; , Weickmann A; M; , Williams E; J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109
起始页码: 305
结束页码: 322
语种: 英语
英文关键词: Asian pollution ; Background ozone ; Exceedances ; Long range transport ; NAAQS ; Stratosphere-to-troposphere transport ; Surface ozone
Scopus关键词: Air quality ; Air quality standards ; Boundary layers ; Chemical analysis ; Climate models ; Fires ; Optical radar ; Research laboratories ; Sea level ; Troposphere ; Background ozones ; Exceedances ; Long range transport ; NAAQS ; Stratosphere-to-troposphere transports ; Surface ozone ; Ozone ; ozone ; air quality ; atmospheric pollution ; background level ; backscatter ; lidar ; long range transport ; ozone ; pollution monitoring ; radar ; spatiotemporal analysis ; stratosphere ; troposphere ; wildfire ; aerosol ; air force ; air monitoring ; air pollution ; air quality ; air quality standard ; ambient air ; analytic method ; Article ; Asia ; atmospheric dispersion ; atmospheric transport ; biomass ; carbon dioxide fixation ; climate change ; environmental planning ; FLEXPART analysis ; forecasting ; forest ; GFDL AM3 model ; measurement ; meteorology ; ozone layer ; plume ; priority journal ; real time air quality modeling system ; simulation ; solar radiation ; spring ; statistical model ; stratosphere ; stratosphere to troposphere transport ; surface area ; telecommunication ; time series analysis ; troposphere ; United States ; wildfire ; Asia ; California ; Clark County [Nevada] ; Las Vegas ; Los Angeles Basin ; Nevada ; United States
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: The 2013 Las Vegas Ozone Study (LVOS) was conducted in the late spring and early summer of 2013 to assess the seasonal contribution of stratosphere-to-troposphere transport (STT) and long-range transport to surface ozone in Clark County, Nevada and determine if these processes directly contribute to exceedances of the National Ambient Air Quality Standard (NAAQS) in this area. Secondary goals included the characterization of local ozone production, regional transport from the Los Angeles Basin, and impacts from wildfires. The LVOS measurement campaign took place at a former U.S. Air Force radar station ~45 km northwest of Las Vegas on Angel Peak (~2.7 km above mean sea level, asl) in the Spring Mountains. The study consisted of two extended periods (May 19-June 4 and June 22-28, 2013) with near daily 5-min averaged lidar measurements of ozone and backscatter profiles from the surface to ~2.5 km above ground level (~5.2 km asl), and continuous in situ measurements (May 20-June 28) of O3, CO, (1-min) and meteorological parameters (5-min) at the surface. These activities were guided by forecasts and analyses from the FLEXPART (FLEXible PARTticle) dispersion model and the Real Time Air Quality Modeling System (RAQMS), and the NOAA Geophysical Research Laboratory (NOAA GFDL) AM3 chemistry-climate model. In this paper, we describe the LVOS measurements and present an overview of the results. The combined measurements and model analyses show that STT directly contributed to each of the three O3 exceedances that occurred in Clark County during LVOS, with contributions to 8-h surface concentrations in excess of 30 ppbv on each of these days. The analyses show that long-range transport from Asia made smaller contributions (<10 ppbv) to surface O3 during two of those exceedances. The contribution of regional wildfires to surface O3 during the three LVOS exceedance events was found to be negligible, but wildfires were found to be a major factor during exceedance events that occurred before and after the LVOS campaign. Our analyses also shows that ozone exceedances would have occurred on more than 50% of the days during the six-week LVOS campaign if the 8-h ozone NAAQS had been 65 ppbv instead of 75 ppbv. © 2014.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81831
Appears in Collections:气候变化事实与影响

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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, CO, United States; Laboratoire de l'Atmosphere et des Cyclones (LACy), UMR 8105, Saint-Denis, La Reunion, France; 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,, Senff C,et al. An overview of the 2013 Las Vegas Ozone Study (LVOS): Impact of stratospheric intrusions and long-range transport on surface air quality[J]. Atmospheric Environment,2015-01-01,109
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