Show simple item record

dc.contributor.authorZhou, W.
Cohan, D.S.
Pinder, R.W.
Neuman, J.A.
Holloway, J.S.
Peischl, J.
Ryerson, T.B.
Nowak, J.B.
Flocke, F.
Zheng, W.G.
dc.date.accessioned 2016-02-02T21:22:53Z
dc.date.available 2016-02-02T21:22:53Z
dc.date.issued 2012
dc.identifier.citation Zhou, W., Cohan, D.S., Pinder, R.W., et al.. "Observation and modeling of the evolution of Texas power plant plumes." Atmospheric Chemistry and Physics, 12, (2012) European Geosciences Union: 455-468. http://dx.doi.org/10.5194/acp-12-455-2012.
dc.identifier.urihttps://hdl.handle.net/1911/88309
dc.description.abstract 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 physical and chemical evolution of the plumes. The observations reveal that SO2 and NOy were rapidly removed from PPPs on a cloudy day but not on the cloud-free days, indicating efficient aqueous processing of these compounds in clouds. The model reasonably represents observed NOx oxidation and PAN formation in the plumes, but fails to capture the rapid loss of SO2 (0.37 h−1) and NOy (0.24 h−1) in some plumes on the cloudy day. Adjustments to the cloud liquid water content (QC) and the default metal concentrations in the cloud module could explain some of the SO2 loss. However, NOy in the model was insensitive to QC. These findings highlight cloud processing as a major challenge to atmospheric models. Model-based estimates of ozone production efficiency (OPE) in PPPs are 20–50 % lower than observation-based estimates for the cloudy day.
dc.language.iso eng
dc.publisher European Geosciences Union
dc.rights This work is distributed under the Creative Commons Attribution 3.0 License.
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.title Observation and modeling of the evolution of Texas power plant plumes
dc.type Journal article
dc.contributor.funder National Science Foundation
dc.citation.journalTitle Atmospheric Chemistry and Physics
dc.citation.volumeNumber 12
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.5194/acp-12-455-2012
dc.identifier.grantID CAREER Award Grant 087386 (National Science Foundation)
dc.type.publication publisher version
dc.citation.firstpage 455
dc.citation.lastpage 468


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record