GSTDTAP  > 气候变化
DOI10.1002/2016JD026266
An Assessment of Ground Level and Free Tropospheric Ozone Over California and Nevada
Yates, E. L.1; Johnson, M. S.2; Iraci, L. T.1; Ryoo, J. -M.1; Pierce, R. B.3; Cullis, P. D.4; Gore, W.1; Ives, M. A.5; Johnson, B. J.6; Leblanc, T.7; Marrero, J. E.1; Sterling, C. W.4; Tanaka, T.1
2017-09-27
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2017
卷号122期号:18
文章类型Article
语种英语
国家USA
英文摘要

Increasing free tropospheric ozone (O-3), combined with the high elevation and often deep boundary layers at western U.S. surface stations, poses challenges in attaining the more stringent 70 ppb O-3 National Ambient Air Quality Standard. As such, use of observational data to identify sources and mechanisms that contribute to surface O-3 is increasingly important. This work analyzes surface and vertical O-3 observations over California and Nevada from 1995 to 2015. Over this period, the number of high O-3 events (95th percentile) at the U.S. Environmental Protection Agency Clean Air Status and Trends Network (CASTNET) sites has decreased during summer, as a result of decreasing U.S. emissions. In contrast, an increase in springtime 5th percentile O-3 indicates a general increase of baseline O-3. During 2012 there was a peak in exceedances and in the average spring-summer O-3 mixing ratios at CASTNET sites. Goddard Earth Observing System-Chem results show that the surface O-3 attributable to transport from the upper troposphere and stratosphere was increased in 2013 compared to 2012, highlighting the importance of measurements aloft. Vertical O-3 measurements from aircraft, ozonesondes, and lidar show distinct seasonal trends, with a high percentage of elevated O-3 laminae (O-3 > 70 ppb, 3-8 km) during spring and summer. Analysis of the timing of high O-3 surface events and correlation between surface and vertical O-3 data is used to discuss varying sources of western U.S. surface O-3.


领域气候变化
收录类别SCI-E
WOS记录号WOS:000416388000031
WOS关键词TABLE MOUNTAIN FACILITY ; WESTERN NORTH-AMERICA ; BASE-LINE OZONE ; SURFACE OZONE ; AIR-QUALITY ; UNITED-STATES ; AIRBORNE MEASUREMENTS ; EXCEEDANCE AREA ; MIXING RATIOS ; TERM CHANGES
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向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/32776
专题气候变化
作者单位1.NASA, Ames Res Ctr, Atmospher Sci Branch, Mountain View, CA 94035 USA;
2.NASA, Ames Res Ctr, Biospher Sci Branch, Mountain View, CA USA;
3.NOAA, NESDIS Adv Satellite Prod Branch Madison, Madison, WI USA;
4.Univ Colorado Boulder, Cooperat Inst Res Environm Sci, Boulder, CO USA;
5.NOAA, Trinidad Head Observ, ESRL, Trinidad Head, CA USA;
6.NOAA, Global Monitoring Div, Earth Syst Res Lab, Boulder, CO USA;
7.CALTECH, Table Mt Facil, Jet Prop Lab, Wrightwood, CA USA
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Yates, E. L.,Johnson, M. S.,Iraci, L. T.,et al. An Assessment of Ground Level and Free Tropospheric Ozone Over California and Nevada[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(18).
APA Yates, E. L..,Johnson, M. S..,Iraci, L. T..,Ryoo, J. -M..,Pierce, R. B..,...&Tanaka, T..(2017).An Assessment of Ground Level and Free Tropospheric Ozone Over California and Nevada.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(18).
MLA Yates, E. L.,et al."An Assessment of Ground Level and Free Tropospheric Ozone Over California and Nevada".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.18(2017).
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