Articles | Volume 10, issue 3
https://doi.org/10.5194/amt-10-1155-2017
https://doi.org/10.5194/amt-10-1155-2017
Research article
 | 
21 Mar 2017
Research article |  | 21 Mar 2017

Improved OSIRIS NO2 retrieval algorithm: description and validation

Christopher E. Sioris, Landon A. Rieger, Nicholas D. Lloyd, Adam E. Bourassa, Chris Z. Roth, Douglas A. Degenstein, Claude Camy-Peyret, Klaus Pfeilsticker, Gwenaël Berthet, Valéry Catoire, Florence Goutail, Jean-Pierre Pommereau, and Chris A. McLinden

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Short summary
A new OSIRIS NO2 retrieval algorithm is described and validated using > 40 balloon-based profile measurements. The validation results indicate a slight improvement relative to the existing operational algorithm in terms of the bias versus the balloon data, particularly in the lower stratosphere. The implication is that this new algorithm should replace the operational one. The motivation was to combine spectral fitting and the SaskTRAN radiative transfer model to achieve an improved product.