This project analyzes monthly observation data (2000-2016) and simulation data (2000-2017) from CarbonTracker Transport Model 5 and attempt to estimate global mean CO2 mole fraction and atmospheric CO2 mass.
The observed CO2 mole fraction is derived from 200 out of 246 global-wide distributed stations, which include surface-based, shipboard-based and tower-based measurements. (df_selectedfile_ctracker.csv under output, generated by R code)