The INMENSE project has generated new observations of IASI CH4 and N2O concentrations in the middle/high troposphere on a global scale by using high performing computers. In particular, INMENSE has used the Teide-HPC, bwUniCluster, ForHLRII and Marconi. Figure below shows an example of these retrievals, i.e., the global distribution of tropospheric CH4 (at 4.2 km a.s.l. in ppm) for August 2017, where the main global CH4 emission regions are clearly identified. For this map, the individual observations of the remote sensors MetopA/IASI and MetopB/IASI were averaged for a longitudexlatitude area of 2ºx2º during August 2017.