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| Titel |
Stratospheric BrONO2 observed by MIPAS |
| VerfasserIn |
M. Höpfner, J. Orphal, T. Clarmann, G. Stiller, H. Fischer |
| 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 ; 9, no. 5 ; Nr. 9, no. 5 (2009-03-06), S.1735-1746 |
| Datensatznummer |
250007009
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| Publikation (Nr.) |
 copernicus.org/acp-9-1735-2009.pdf |
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| Zusammenfassung |
| The first measurements of stratospheric bromine nitrate (BrONO2)
are reported. Bromine nitrate has been clearly identified in atmospheric infrared emission
spectra recorded with the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS)
aboard the European Envisat satellite, and
stratospheric concentration profiles have been determined for different conditions (day and
night, different latitudes). The BrONO2 concentrations show strong day/night
variations, with much lower concentrations during the day. Maximum volume mixing
ratios observed during night are 20 to 25 pptv. The
observed concentration profiles are in agreement with estimations from photochemical
models and show that the current understanding of stratospheric bromine chemistry is
generally correct. |
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