New retrieval of BrO from SCIAMACHY limb: an estimate of the stratospheric bromine loading during April 2008
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Published:2013-10-07
Issue:10
Volume:6
Page:2549-2561
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ISSN:1867-8548
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Container-title:Atmospheric Measurement Techniques
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language:en
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Short-container-title:Atmos. Meas. Tech.
Author:
Parrella J. P., Chance K.ORCID, Salawitch R. J., Canty T., Dorf M., Pfeilsticker K.ORCID
Abstract
Abstract. We present a new retrieval of stratospheric BrO (bromine monoxide) from channel 2 SCIAMACHY (SCanning Imaging Absorption spectrometer for Atmospheric CHartographY) limb observations. Retrievals are shown to agree with independent balloon observations to within one standard deviation of the retrieval noise. We retrieve BrO profiles for all of April 2008, and apply simulated [BrO]/[Bry] (bromine monoxide : stratospheric inorganic bromine) ratios to estimate the stratospheric Bry loading. We find 23.5 ± 6 ppt Br, suggesting 7 ppt Br from short-lived bromocarbons to be at the high end of the current best estimate (3–8 ppt). The 6 ppt Br uncertainty estimate is dominated by the 21% uncertainty in the simulated [BrO] / [Bry] ratio due to propagation of errors from the underlying chemical kinetics.
Publisher
Copernicus GmbH
Subject
Atmospheric Science
Reference56 articles.
1. Anderson, J. G., Brune, W. H., Lloyd, S. A., Toohey, D. W., Sander, S. P., Starr, W. L., Loewenstein, M., and Podolske, J. R.: Kinetics of O3 destruction by ClO and BrO within the Antarctic vortex: an analysis based on in situ ER-2 data, J. Geophys. Res., 94, 11480–11520, https://doi.org/10.1029/JD094iD09p11480, 1989. 2. Brinckmann, S., Engel, A., Bönisch, H., Quack, B., and Atlas, E.: Short-lived brominated hydrocarbons – observations in the source regions and the tropical tropopause layer, Atmos. Chem. Phys., 12, 1213–1228, https://doi.org/10.5194/acp-12-1213-2012, 2012. 3. Brion, J., Chakir, A., Daumont, D., Malicet, J., and Parisse, C.: High-resolution laboratory absorption cross section of O3, temperature effect, Chem. Phys. Lett., 213, 610–612, 1993. 4. Brohede, S., McLinden, C. A., Berthet, G., Haley, C. S., Murtagh, D., and Sioris, C. E.: A stratospheric NO2 climatology from Odin/OSIRIS limb-scatter measurements, Can. J. Phys., 85, 1253–1274, https://doi.org/10.1139/p07-141, 2007. 5. Carpenter, L. J. and Liss, P. S.: On temperate sources of bromoform and other reactive organic bromine gases, J. Geophys. Res., 105, 20539–20547, https://doi.org/10.1029/2000jd900242, 2000.
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