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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 6
Atmos. Chem. Phys., 13, 3307-3319, 2013
https://doi.org/10.5194/acp-13-3307-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 13, 3307-3319, 2013
https://doi.org/10.5194/acp-13-3307-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 22 Mar 2013

Research article | 22 Mar 2013

Stratospheric BrO abundance measured by a balloon-borne submillimeterwave radiometer

R. A. Stachnik1, L. Millán1, R. Jarnot1, R. Monroe1, C. McLinden2, S. Kühl3, J. Puķīte3, M. Shiotani4, M. Suzuki5, Y. Kasai6, F. Goutail7, J. P. Pommereau7, M. Dorf8, and K. Pfeilsticker8 R. A. Stachnik et al.
  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA, 91109, USA
  • 2Air Quality Research Division, Environment Canada, Toronto, Ontario, Canada
  • 3MPI for Chemistry, Satellite Remote Sensing, Mainz, Germany
  • 4Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Japan
  • 5ISS Science Project Office, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, \newline Sagamihara, Japan
  • 6National Institute of Information and Communications Technology, Koganei, Japan
  • 7LATMOS, Centre National de la Recherche Scientifique, Universite Versailles Saint-Quentin, Guyancourt, France
  • 8Institut für Umweltphysik, University of Heidelberg, Heidelberg, Germany

Abstract. Measurements of mixing ratio profiles of stratospheric bromine monoxide (BrO) were made using observations of BrO rotational line emission at 650.179 GHz by a balloon-borne SIS (superconductor-insulator-superconductor) submillimeterwave heterodyne limb sounder (SLS). The balloon was launched from Ft. Sumner, New Mexico (34° N) on 22 September 2011. Peak mid-day BrO abundance varied from 16 ± 2 ppt at 34 km to 6 ± 4 ppt at 16 km. Corresponding estimates of total inorganic bromine (Bry), derived from BrO vmr (volume mixing ratio) using a photochemical box model, were 21 ± 3 ppt and 11 ± 5 ppt, respectively. Inferred Bry abundance exceeds that attributable solely to decomposition of long-lived methyl bromide and other halons, and is consistent with a contribution from bromine-containing very short lived substances, BryVSLS, of 4 ppt to 8 ppt. These results for BrO and Bry were compared with, and found to be in good agreement with, those of other recent balloon-borne and satellite instruments.

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