Retrieval of trace gases

Report on the retrieval of trace gases incl datasetsFollowing the results of the sensitivity study the best options will be selected to analyse the full SPICAM and NOMAD data sets This might need further development and optimisation of the code such as implementing an automatic link between the best GCM scenario and the retrieval algorithm or considering fitting parameters associated to the size and shape of the dustclouds see Task 44 to improve the fitting of the trace gases abundancesThe retrieval will focus on ozone and water vapour from spectra recorded by SPICAMUV and NOMAD Ozone will be retrieved by SPICAMUV and the UVIS channel of NOMAD whereas H2O abundances will be deduced from the IR channels of NOMAD Solarstellar occultations and nadir observations will be considered and will provide vertical profiles and integrated columns respectively