Simulations of a cold-air pool associated with elevated wintertime ozone in the Uintah Basin, Utah
-
Published:2015-01-09
Issue:1
Volume:15
Page:135-151
-
ISSN:1680-7324
-
Container-title:Atmospheric Chemistry and Physics
-
language:en
-
Short-container-title:Atmos. Chem. Phys.
Author:
Neemann E. M.,Crosman E. T.,Horel J. D.,Avey L.
Abstract
Abstract. Numerical simulations are used to investigate the meteorological characteristics of the 31 January–6 February 2013 cold-air pool in the Uintah Basin, Utah, and the resulting high ozone concentrations. Flow features affecting cold-air pools and air quality in the Uintah Basin are studied, including the following: penetration of clean air into the basin from across the surrounding mountains, elevated easterlies within the inversion layer, and thermally driven slope and valley flows. The sensitivity of the boundary layer structure to snow cover variations and cloud microphysics are also examined. Snow cover increases boundary layer stability by enhancing the surface albedo, reducing the absorbed solar insolation at the surface, and lowering near-surface air temperatures. Snow cover also increases ozone levels by enhancing solar radiation available for photochemical reactions. Ice-dominant clouds enhance cold-air pool strength compared to liquid-dominant clouds by increasing nocturnal cooling and decreasing longwave cloud forcing.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference63 articles.
1. Ahmadov, R., McKeen, S., Trainer, M., Banta, R., Brewer, A., Brown, S., Edwards, P. M., de Gouw, J. A., Frost, G. J., Gilman, J., Helmig, D., Johnson, B., Karion, A., Koss, A., Langford, A., Lerner, B., Olson, J., Oltmans, S., Peischl, J., Pétron, G., Pichugina, Y., Roberts, J. M., Ryerson, T., Schnell, R., Senff, C., Sweeney, C., Thompson, C., Veres, P., Warneke, C., Wild, R., Williams, E. J., Yuan, B., and Zamora, R.: Understanding high wintertime ozone pollution events in an oil and natural gas producing region of the western US, Atmos. Chem. Phys. Discuss., 14, 20295-20343, https://doi.org/10.5194/acpd-14-20295-2014, 2014. 2. Alcott, T. I. and Steenburgh, W. J.: Orographic influences on a Great Salt Lake-effect snow- storm, Mon. Weather Rev., 141, 2432–2450, https://doi.org/10.1175/MWR-D-12-00328.1, 2013. 3. Baklanov, A. A., Grisogono, B., Bornstein, R., Mahrt, L., Zilitinkevich, S. S., Taylor, P., Larsen, S. E., Rotach, W. M., and Fernando, H. J. S.: The nature, theory, and modelling of atmospheric planetary boundary layers, B. Am. Meteorol. Soc., 92, 123–128, https://doi.org/10.1175/2010BAMS2797.1, 2011. 4. Barickman, P.: Emission inventory development activities, in: Final report: 2013 Uinta Basin winter ozone study, edited by: Stoeckenius, T. and McNally, D., ENVIRON International Corporation, Novato, California, Chapter 9, 1–7, available at: http://www.deq.utah.gov/locations/uintahbasin/studies/UBOS-2013.htm (last access: 13 June 2014), 2014. 5. Bell, M. L., McDermott, A., Zeger, S. L., Samet, J. M., and Dominici, F.: Ozone and short-term mortality in 95 US urban communities, 1987–2000, J. Am. Med. Assoc., 292, 2372–2378, https://doi.org/10.1001/jama.292.19.2372, 2004.
Cited by
32 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|