Stratospheric HBr concentration profile obtained from far-infrared emission spectroscopy

Nolt, I. G., Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Alboni, F., Carli, B., Carlotti, M., Cortesi, U., Epifani, M., Griffin, Matthew Joseph ORCID: https://orcid.org/0000-0002-0033-177X, Hamilton, P. A., Lee, C., Lepri, G., Mencaraglia, F., Murray, A. G., Park, J. H., Park, K., Raspollini, P., Ridolfi, M. and Vanek, M. D. 1997. Stratospheric HBr concentration profile obtained from far-infrared emission spectroscopy. Geophysical Research Letters 24 (3) , pp. 281-284. 10.1029/97GL00034

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Abstract

Hydrogen bromide (HBr) is the principal bromine sink species for the ozone loss chemistry induced by bromine‐containing gases in the stratosphere. We report a 1994 balloon‐based measurement of the daytime stratospheric HBr profile between 20 and 36.5 km altitude. The average concentration result of 1.31±0.39 parts per trillion in volume (pptv) and an analysis for the concentration versus altitude profile are consistent with previously reported measurements. These results strengthen the evidence for a significantly higher HBr concentration than that predicted by current photochemical models which, on the basis of recent kinetics results, do not include significant HBr production by the reaction branch, BrO + HO2 → HBr + O3.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Additional Information:	Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0094-8276/ (accessed 20/02/2014).
Publisher:	American Geophysical Union
ISSN:	0094-8276
Date of First Compliant Deposit:	30 March 2016
Last Modified:	03 Dec 2023 15:26
URI:	https://orca.cardiff.ac.uk/id/eprint/10937

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