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Inversion structure and winter ozone distribution in the Uintah Basin, Utah, U.S.A.
https://orcid.org/0000-0001-8493-9522
Abstract The Uintah Basin in Utah, U.S.A. experiences high concentrations of ozone during some winters due to strong, multi-day temperature inversions that facilitate the buildup of pollution from local sources, including the oil and gas industry. Together, elevation of monitoring sites and proximity to oil and gas wells explain as much as 90% of spatial variability in surface ozone concentrations during inversion episodes (i.e., R2 = 0.90). Inversion conditions start earlier and last longer at lower elevations, at least in part because lower elevations are more insulated from winds aloft that degrade inversion conditions and dilute produced ozone. Surface air transport under inversions is dominated by light, diurnal upslope–downslope flow that limits net transport distances. Thus, different areas of the Basin are relatively isolated from each other, allowing spatial factors like elevation and proximity to sources to strongly influence ozone concentrations at individual sites.
Highlights Multi-day winter inversion episodes lead to high ozone in eastern Utah. Inversion conditions are more frequent and long-lasting at lower elevations. Transport of ozone and precursors is limited during inversion episodes. Ozone is strongly influenced by elevation and proximity to sources.
Inversion structure and winter ozone distribution in the Uintah Basin, Utah, U.S.A.
https://orcid.org/0000-0001-8493-9522
Abstract The Uintah Basin in Utah, U.S.A. experiences high concentrations of ozone during some winters due to strong, multi-day temperature inversions that facilitate the buildup of pollution from local sources, including the oil and gas industry. Together, elevation of monitoring sites and proximity to oil and gas wells explain as much as 90% of spatial variability in surface ozone concentrations during inversion episodes (i.e., R2 = 0.90). Inversion conditions start earlier and last longer at lower elevations, at least in part because lower elevations are more insulated from winds aloft that degrade inversion conditions and dilute produced ozone. Surface air transport under inversions is dominated by light, diurnal upslope–downslope flow that limits net transport distances. Thus, different areas of the Basin are relatively isolated from each other, allowing spatial factors like elevation and proximity to sources to strongly influence ozone concentrations at individual sites.
Highlights Multi-day winter inversion episodes lead to high ozone in eastern Utah. Inversion conditions are more frequent and long-lasting at lower elevations. Transport of ozone and precursors is limited during inversion episodes. Ozone is strongly influenced by elevation and proximity to sources.
Inversion structure and winter ozone distribution in the Uintah Basin, Utah, U.S.A.
https://orcid.org/0000-0001-8493-9522
Abstract The Uintah Basin in Utah, U.S.A. experiences high concentrations of ozone during some winters due to strong, multi-day temperature inversions that facilitate the buildup of pollution from local sources, including the oil and gas industry. Together, elevation of monitoring sites and proximity to oil and gas wells explain as much as 90% of spatial variability in surface ozone concentrations during inversion episodes (i.e., R2 = 0.90). Inversion conditions start earlier and last longer at lower elevations, at least in part because lower elevations are more insulated from winds aloft that degrade inversion conditions and dilute produced ozone. Surface air transport under inversions is dominated by light, diurnal upslope–downslope flow that limits net transport distances. Thus, different areas of the Basin are relatively isolated from each other, allowing spatial factors like elevation and proximity to sources to strongly influence ozone concentrations at individual sites.
Highlights Multi-day winter inversion episodes lead to high ozone in eastern Utah. Inversion conditions are more frequent and long-lasting at lower elevations. Transport of ozone and precursors is limited during inversion episodes. Ozone is strongly influenced by elevation and proximity to sources.
Inversion structure and winter ozone distribution in the Uintah Basin, Utah, U.S.A.
Lyman, Seth (author) / Tran, Trang (author)
Atmospheric Environment ; 123 ; 156-165
2015-10-24
10 pages
Article (Journal)
Electronic Resource
English
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