Gomos LIMB scattering ozone profile retrieval
View/ Open
Discipline
Natural sciences
Subject
Algorithms
Contamination
Light scattering
Radiation detectors
Stray light
Atmospheric conditions
Profile retrieval
Signal saturation
Standard deviation
Zenith angles
Ozone
Audience
Scientific
Date
2007Metadata
Show full item recordDescription
We analyzed a set of GOMOS bright limb measurements with solar zenith angles less than 80°, and within 150 km of SAGE II measurements. In order to perform any species retrieval, GOMOS measurements were first corrected for stray light contamination. Ozone profile retrievals were performed using GOMOS data in the OMPS limb profiler algorithm in order to evaluate code functionality under different atmospheric conditions, assess the accuracy of the pointing algorithm, and identify potential improvements. The OMPS algorithm performs a simultaneous optimal estimation inversion of both Hartley -Huggins and Chappuis band radiances. GOMOS ozone retrievals are restricted to 25-53 km because of signal saturation and residual stray light. The retrieved ozone profiles agree with collocated SAGE II measurements on average to within 10%, 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.; McPeters, R.D. (2007). Gomos LIMB scattering ozone profile retrieval. , Proceedings of the Envisat Symposium 2007, Vol. 636,Type
Conference
Peer-Review
No
Language
eng