期刊
ATMOSPHERIC CHEMISTRY AND PHYSICS
卷 9, 期 3, 页码 831-848出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/acp-9-831-2009
关键词
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资金
- Belgium Prodex
- Ozone SAF
- Belgian Federal Science Policy [PEA 90125]
- German Ministry of Education and Research (BMF) through the German Aerospace Center (DLR) [50EE0727]
- European Centre for Medium-Range Weather Forecasts (ECMWF)
- Natural Environment Research Council [bas010020] Funding Source: researchfish
- NERC [bas010020] Funding Source: UKRI
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.
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