Characteristics of the NO-NO2-O3 system in different chemical regimes during the MIRAGE-Mex field campaignReport as inadecuate




Characteristics of the NO-NO2-O3 system in different chemical regimes during the MIRAGE-Mex field campaign - Download this document for free, or read online. Document in PDF available to download.

1 Department of Environmental Engineering 2 Atmospheric Chemistry Division Boulder 3 School of Earth and Atmospheric Sciences Atlanta

Abstract : 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. In general, NO2-NO ratios, which can be used as an indicator to test current understanding of tropospheric chemistry mechanism, are near photostationary state. The air masses were categorized into 5 groups: boundary layer labeled as -BL-, free troposphere continental -FTCO- and marine -FTMA-, biomass burning -BB-, and Tula industrial complex -TIC-. The time- and air mass-dependent NO2-NO ratios ranged from 2.35 TIC to 5.18 BB, while the NOx-NOy ratios varied from 0.17 FTCO to 0.54 BL. The ozone production efficiency for the 5 air mass categories ranged from 5.0 TIC to 10.2 BL, indicating photochemically young and reactive air masses.





Author: Z.-H. Shon - S. Madronich - S.-K. Song - F. M. Flocke - D. J. Knapp - R. S. Anderson - R. E. Shetter - C. A. Cantrell - S. R. Hal

Source: https://hal.archives-ouvertes.fr/



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