CO2 fluxes from global and 39 major basins' river networks

Annual dataset of totoal CO2 flux, mean CO2 gradient, mean gas exchange rate, and total river areas for global river networks and rivers at 39 major basins. In total, we have 40 .csv files.Four columns in each .csv file: (1) Total CO2 flux (Tg C/yr), (2) mean CO2 gradient (ppm), (3) mean gas exchange rage (m/d), and (4) total river areas (biliion m2).The MATLAB code is used to calculate the multilinear regression based on the annual dataset.The Python code is used to train, validate, and test the Random Forest machine learning model.