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A global stratospheric bromine monoxide climatology based on the BASCOE chemical transport model

Theys, N.; Van Roozendael, M.; Errera, Q.; Hendrick, F.; Daerden, F.; Chabrillat, S.; Dorf, M.; Pfeilsticker, K.; Rozanov, A.; Lotz, W.; Burrows, J.P.; Lambert, J.-C.; Goutail, F.; Roscoe, Howard K.; De Mazière, M.. 2009 A global stratospheric bromine monoxide climatology based on the BASCOE chemical transport model. Atmospheric Chemistry and Physics, 9 (3). 831-848. 10.5194/acp-9-831-2009

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Abstract/Summary

A new climatology of stratospheric BrO profiles based on a parameterization using dynamical and chemical indicators has been developed, with the aim to apply it to the retrieval of tropospheric BrO columns from space nadir measurements. The adopted parameterization is based on three years of output data from the 3-D chemistry transport model BASCOE. The impact of the atmospheric dynamics on the stratospheric BrO distribution is treated by means of Br-y/ozone correlations built from 3-D-CTM model results, while photochemical effects are taken into account using stratospheric NO2 columns as an indicator of the BrO/Br-y ratio. The model simulations have been optimized for bromine chemistry and budget, and validated through comparisons using an extensive data set of ground-based, balloon-borne and satellite limb (SCIAMACHY) stratospheric BrO observations.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.5194/acp-9-831-2009
Programmes: BAS Programmes > Global Science in the Antarctic Context (2005-2009) > Long-Term Monitoring and Survey – Physical Sciences Division
ISSN: 1680-7316
NORA Subject Terms: Meteorology and Climatology
Chemistry
Atmospheric Sciences
Date made live: 12 Nov 2010 15:33
URI: http://nora.nerc.ac.uk/id/eprint/11312

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