
The dataset include results from Observing System Simulation Experiments (OSSEs) carried out by CMS-Flux and TM5 inversion systems. The results are monthly and the data format is netcdf. CMS-Flux covers 2016 to 2017 at original 4x5 resolution, while TM5 covers 2016-2018 regridded to 1x1 resolution. There are two observation scenarios: 1) the real OCO-2 observation coverage and sensitivity; 2) repeating the January observation coverage through out the year. For each of these two observation scenarios, three priors were used.