Odin/OSIRIS observations of stratospheric BrO: Retrieval methodology, climatology, and inferred Bry

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Authors
McLinden, C.A.
Haley, C.S.
Lloyd, N.D.
Hendrick, F.
Rozanov, A.
Sinnhuber, B.-M.
Goutail, F.
Degenstein, D.A.
Llewellyn, E.J.
Sioris, C.E.
Van Roozendael, M.
Pommereau, J.P.
Lotz, W.
Burrows, J.P.
Discipline
Earth and related Environmental sciences
Subject
Bromine
Error analysis
Data sets
Ground based
Infra red
Optical spectrograph
Radiance spectra
Satellite instruments
UV-visible spectrometers
Zonal means
Climatology
balloon observation
bromine
climatology
correlation
data set
error analysis
radiance
remote sensing
satellite imagery
spectrometer
stratosphere
Audience
Scientific
Date
2010Metadata
Show full item recordDescription
A 7+ year (2001-2008) data set of stratospheric BrO profiles measured by the Optical Spectrograph and Infra-Red Imager System (OSIRIS) instrument, a UV-visible spectrometer measuring limb-scattered sunlight from the Odin satellite, is presented. Zonal mean radiance spectra are computed for each day and inverted to yield effective daily zonal mean BrO profiles from 16 to 36 km. A detailed description of the retrieval methodology and error analysis is presented. Single-profile precision and effective resolution are found to be about 30% and 3-5 km, respectively, throughout much of the retrieval range. Individual profile and monthly mean comparisons with ground-based, balloon, and satellite instruments are found to agree to about 30%. A BrO climatology is presented, and its morphology and correlation with NO2 is consistent with our current understanding of bromine chemistry. Monthly mean Bry maps are derived. Two methods of calculating total Bry in the stratosphere are used and suggest (21.0 ± 5.0) pptv with a contribution from very short lived substances of (5.0 ± 5.0) pptv, consistent with other recent estimates.
Citation
McLinden, C.A.; Haley, C.S.; Lloyd, N.D.; Hendrick, F.; Rozanov, A.; Sinnhuber, B.-M.; Goutail, F.; Degenstein, D.A.; Llewellyn, E.J.; Sioris, C.E.; Van Roozendael, M.; Pommereau, J.P.; Lotz, W.; Burrows, J.P. (2010). Odin/OSIRIS observations of stratospheric BrO: Retrieval methodology, climatology, and inferred BrIdentifiers
scopus: 2-s2.0-77955913115
Type
Article
Peer-Review
Yes
Language
eng