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Akademický článek

Mechanistic representation of soil nitrogen emissions in the Community Multiscale Air Quality (CMAQ) model v 5.1

Autor: Q. Z. Rasool, J. O. Bash, D. S. Cohan

Publikováno v: Geoscientific Model Development, Vol 12, Pp 849-878 (2019)

Soils are important sources of emissions of nitrogen-containing (N-containing) gases such as nitric oxide (NO), nitrous acid (HONO), nitrous oxide (N2O), and ammonia (NH3). However, most contemporary air quality models lack a mechanistic representati

Externí odkaz: https://doaj.org/article/47fbf7e38ca44a8ab877a73ae0c99cfd

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Akademický článek

Enhanced representation of soil NO emissions in the Community Multiscale Air Quality (CMAQ) model version 5.0.2

Autor: Q. Z. Rasool, R. Zhang, B. Lash, D. S. Cohan, E. J. Cooter, J. O. Bash, L. N. Lamsal

Publikováno v: Geoscientific Model Development, Vol 9, Iss 9, Pp 3177-3197 (2016)

Modeling of soil nitric oxide (NO) emissions is highly uncertain and may misrepresent its spatial and temporal distribution. This study builds upon a recently introduced parameterization to improve the timing and spatial distribution of soil NO emiss

Externí odkaz: https://doaj.org/article/58f09766dd0d45b09b983723f76810f5

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Akademický článek

Influence of satellite-derived photolysis rates and NOx emissions on Texas ozone modeling

Autor: W. Tang, D. S. Cohan, A. Pour-Biazar, L. N. Lamsal, A. T. White, X. Xiao, W. Zhou, B. H. Henderson, B. F. Lash

Publikováno v: Atmospheric Chemistry and Physics, Vol 15, Iss 4, Pp 1601-1619 (2015)

Uncertain photolysis rates and emission inventory impair the accuracy of state-level ozone (O3) regulatory modeling. Past studies have separately used satellite-observed clouds to correct the model-predicted photolysis rates, or satellite-constrained

Externí odkaz: https://doaj.org/article/26670012ab2042afb8e7009069c364da

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Akademický článek

Slower ozone production in Houston, Texas following emission reductions: evidence from Texas Air Quality Studies in 2000 and 2006

Autor: W. Zhou, D. S. Cohan, B. H. Henderson

Publikováno v: Atmospheric Chemistry and Physics, Vol 14, Iss 6, Pp 2777-2788 (2014)

Airborne measurements from two Texas Air Quality Study (TexAQS) field campaigns have been used to investigate changes of ozone production in Houston, Texas, from 2000 to 2006, a period of major emission reduction measures for petrochemical and other

Externí odkaz: https://doaj.org/article/746eff3639124bd7b5cd6f716c9226fc

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Akademický článek

Inverse modeling of Texas NOx emissions using space-based and ground-based NO2 observations

Autor: W. Tang, D. S. Cohan, L. N. Lamsal, X. Xiao, W. Zhou

Publikováno v: Atmospheric Chemistry and Physics, Vol 13, Iss 21, Pp 11005-11018 (2013)

Inverse modeling of nitrogen oxide (NOx) emissions using satellite-based NO2 observations has become more prevalent in recent years, but has rarely been applied to regulatory modeling at regional scales. In this study, OMI satellite observations of N

Externí odkaz: https://doaj.org/article/c84bad72df4e4f4dbb1c90140a512769

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Akademický článek

Observation and modeling of the evolution of Texas power plant plumes

Autor: W. Zhou, D. S. Cohan, R. W. Pinder, J. A. Neuman, J. S. Holloway, J. Peischl, T. B. Ryerson, J. B. Nowak, F. Flocke, W. G. Zheng

Publikováno v: Atmospheric Chemistry and Physics, Vol 12, Iss 1, Pp 455-468 (2012)

During the second Texas Air Quality Study 2006 (TexAQS II), a full range of pollutants was measured by aircraft in eastern Texas during successive transects of power plant plumes (PPPs). A regional photochemical model is applied to simulate the physi

Externí odkaz: https://doaj.org/article/31692ee4408f4ff59fd579d0a44595fa

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