Johanna Mae Ga Absolutely, multiple research have utilized OCO-2 and Tropomi satellite data to trace CO2 and CH4 trends.
Saunois et al. (2020) published "The global methane budget 2000-2017," which used Tropomi satellite data to estimate worldwide methane emissions and trends. Another research, "A decade of GOSAT proxy satellite CH4 measurements," by Parker et al. (2018), examined changes in global atmospheric methane concentrations using OCO-2 and other satellite data.
Furthermore, Zhang et al. (2018) used both OCO-2 and Tropomi satellite data in "Mapping and quantifying methane emissions from oil and gas production in the Barnett Shale region using satellite observations" to map and quantify methane emissions from oil and gas production in the Barnett Shale region.
Overall, the use of satellite data such as OCO-2 and Tropomi is becoming increasingly significant in mapping and monitoring greenhouse gas changes, and many more research employing these data sources are planned in the future.