Ozone profile retrieval from GOMOS limb scattering measurements

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Discipline
Physical sciences
Subject
Algorithms
Atmospheric chemistry
Estimation
Monitoring
Ozone
Scattering
Upper atmosphere
accuracy assessment
algorithm
data acquisition
estimation method
limb
ozone
performance assessment
radiance
satellite data
scattering
uncertainty analysis
zenith angle
Audience
Scientific
Date
2008Metadata
Show full item recordDescription
We analyzed a set of Global Ozone Monitoring by Occultation of Stars (GOMOS) bright limb measurements with solar zenith angles less than 85° and within 150 km of Stratospheric Aerosol and Gas Experiment II (SAGE II) measurements. In order to perform any species retrieval, GOMOS measurements were first corrected for stray light contamination. GOMOS pointing was analyzed using scene-based tangent height algorithms, and the best results were achieved using ∼350 nm (Rayleigh) pixels that were consistent with GOMOS known accurate pointing. In order to demonstrate GOMOS bright limb capabilities, ozone profile retrievals were performed using GOMOS measurements of limb-scattered radiances with the Ozone Mapping and Profiler Suite limb profiler algorithm. The algorithm performs a simultaneous optimal estimation inversion of both Hartley-Huggins and Chappuis band radiances. We restricted our GOMOS ozone retrievals to the range 25-53 km, a region of relatively constant measurement uncertainty. In this first look at GOMOS limb data, the retrieved ozone profiles agree with collocated SAGE II measurements on average to within 10-15% and with a standard deviation of 10%. Retrieval results were consistent for both upper and lower GOMOS detector bands.
Citation
Taha, G.; Jaross, G.; Fussen, D.; Vanhellemont, F.; Kyrölä, E.; McPeters, R.D. (2008). Ozone profile retrieval from GOMOS limb scattering measurements. , Journal of Geophysical Research Atmospheres, Vol. 113, Issue 23, D23307, DOI: 10.1029/2007JD009409.Identifiers
scopus: 2-s2.0-59749087524
Type
Article
Peer-Review
Yes
Language
eng