MIPAS2D - 10 Years of MIPAS/ENVISAT Measurements Analyzed with a 2D Tomographic Approach

We present the latest version of the MIPAS2D database (Dinelli et al. 2010), a database of physical and chemical quantities obtained from 10 years of observations made by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) onboard ENVISAT. MIPAS observations have been analysed using the latest version of the GMTR analysis code (Carlotti et al. (2006)) that uses a full 2D tomographic retrieval approach that enables to account for the horizontal inhomogeneity of the atmosphere. The new database includes all MIPAS main targets (pressure, temperature, H2O, O3, HNO3,CH4, N2O, NO2) along with the minor species N2O5, ClONO2, CFC-11, CFC-12, and ClO. The data have been obtained on a vertical grid coincident with the nominal vertical grid of MIPAS Full Resolution (FR) measurements (from 6 to 42 km at 3 km steps, and at 47, 52, 60 and 68 km) and on two horizontal (latitudinal) grids: one at fixed latitudes (one profile every 5 degree of latitude) and one on the average latitudes of MIPAS scans. FR and Optimised Resolution (OR) measurements have been analysed using personalized spectral regions (MWs). To avoid possible biases due to the use of different spectroscopic regions at different spectral resolutions, the FR measurements have also been degraded to the spectral resolution of the OR measurements and analysed with the same OR set of MWs. Examples of the obtained results will be presented along with some validation results.