DOI: 10.1016/j.atmosenv.2020.117426
论文题名: The effect of an upwind non-attainment area on ozone in California's Sierra Nevada Mountains
作者: Yates E.L. ; Iraci L.T. ; Tarnay L.W. ; Burley J.D. ; Parworth C. ; Ryoo J.-M.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 230 语种: 英语
学科: MDA8
; Ozone
; Production
; Sierra Nevada
; Tranport
中文摘要: The climate, topography, high population and associated emissions of California pose unique challenges in attaining the ozone (O3) National Ambient Air Quality Standard. California's Sierra Nevada Mountains are situated east, and downwind of, the San Joaquin Valley (SJV), which has some of the worst air quality in the US. This work reports surface and vertical O3 observations over the Sierra Nevada Mountains and the SJV from 1998 to 2018. Over this period, the O3 concentrations observed on highly polluted days (95th percentile) decreased, primarily because of summertime emission reductions. Analysis of surface site diurnal data highlights the impacts that the SJV has on the Sierra Nevada Mountains, particularly at lower elevations. O3 typically remains higher overnight at mountain sites, compared to SJV sites, and as a result mountain sites can have high cumulative exposure to O3. Evidence of local and transport effects on O3 trends across the Sierra Nevada Mountains is presented through examining of the timing of O3 exceedances and correlations with different surface sites and with O3 aloft. The data indicate a strong regional influence of emissions from the SJV over the Sierra Nevada Mountains and aloft up to 3 km. © 2020 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160805
Appears in Collections: 气候变化与战略
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作者单位: Atmospheric Science Branch, NASA Ames Research Center, Moffett Field, CA, United States; USDA Forest Service, Pacific Southwest Region Remote Sensing Lab, McClellan, CA, United States; Department of Chemistry, Saint Mary's College of California, Moraga, CA, United States
Recommended Citation:
Yates E.L.,Iraci L.T.,Tarnay L.W.,et al. The effect of an upwind non-attainment area on ozone in California's Sierra Nevada Mountains[J]. Atmospheric Environment,2020-01-01,230