Retrieval of stratospheric and mesospheric O3 from high resolution MIPAS spectra at 15 and 10 μm

In this work, we deal with the retrieval of O3 from the upper atmosphere data from 20 to 100 km using the high spectral resolution measurements of MIPAS in the regions of 14 and 10 μm. Non-LTE modelling of the O3 levels is included. Quality parameters of the retrievals and sensitivity tests for tuning the retrieval processor are presented. Day and nighttime O3 profiles and zonal O3 distribution for solstice conditions are shown to demonstrate the robustness and quality of the method. Finally a preliminary error assessment on the random and systematic errors, including non-LTE sources, is presented.