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| Titel |
Stratospheric BrO abundance measured by a balloon-borne submillimeterwave radiometer |
| VerfasserIn |
R. A. Stachnik, L. Millán, R. Jarnot, R. Monroe, C. McLinden, S. Kühl, J. Puķīte, M. Shiotani, M. Suzuki, Y. Kasai, F. Goutail, J. P. Pommereau, M. Dorf, K. Pfeilsticker |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 13, no. 6 ; Nr. 13, no. 6 (2013-03-22), S.3307-3319 |
| Datensatznummer |
250018533
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| Publikation (Nr.) |
 copernicus.org/acp-13-3307-2013.pdf |
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| Zusammenfassung |
| 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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