Submitted by czr137 on
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The OSIRIS Level 2 data products are retrieved through the SaskMART iterative numerical method.  Because the result of each iteration feeds into the next, methods of this kind can become unstable under certain conditions.  It is important to detect and screen out these profiles to protect the quality of these products and improve the accuracy of any Level 3 products.
Detection is performed using three major methods, examining Level 1 data for circumstances that are known to cause retrieval instabilities, using statistical methods to detect and remove major outliers, and examining weekly zonal averages and removing scans "by-hand".
The following sections will provide summary explanations for these three methods and describe how they have been implemented.