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Abstract
It is demonstrated that the recovery of oxygen atom density and temperature atmospheric profiles can be obtained from numerical inversion of simulated limb-look radiance from the two atomic oxygen far infra-red fine-structure transitions at 63 μ m ( 3 P 1 → 3 P 2) and 128 μ m ( 3 P 0 → 3 P 1) . The inversion of simulated radiance data with reasonable estimates of noise is possible if both the integrated radiance and line-center radiance are available for both transitions. In order for the recovery of the atmospheric parameters to be successful down to regions of high oxygen atom density (100 km), it is necessary to smooth the noisy radiance data prior to application of a modified Gauss-Newton algorithm. Best results were obtained when a combination of cubic spline and optimal filtering smoothing techniques were used.
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