Characteristics of the NO-NO2-O3 system in different chemical regimes during the MIRAGE-Mex field campaign
| Autor: | X. Tie, S. R. Hall, C. A. Cantrell, R. E. Shetter, R. S. Anderson, D. J. Knapp, F. M. Flocke, S.-K. Song, S. Madronich, Z.-H. Shon |
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| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Atmospheric Chemistry and Physics, Vol 8, Iss 23, Pp 7153-7164 (2008) |
| Druh dokumentu: | article |
| ISSN: | 1680-7316 1680-7324 |
| Popis: | The NO-NO2 system was analyzed in different chemical regimes/air masses based on observations of reactive nitrogen species and peroxy radicals made during the intensive field campaign MIRAGE-Mex (4 to 29 March 2006). The air masses were categorized into 5 groups based on combinations of macroscopic observations, geographical location, meteorological parameters, models, and observations of trace gases: boundary layer (labeled as "BL"), biomass burning ("BB"), free troposphere (continental, "FTCO" and marine, "FTMA"), and Tula industrial complex ("TIC"). In general, NO2/NO ratios in different air masses are near photostationary state. Analysis of this ratio can be useful for testing current understanding of tropospheric chemistry. The ozone production efficiency (OPE) for the 5 air mass categories ranged from 4.5 (TIC) to 8.5 (FTMA), consistent with photochemical aging of air masses exiting the Mexico City Metropolitan Area. |
| Databáze: | Directory of Open Access Journals |
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