Supplementary Data for Global riverine land-to-ocean carbon export constrained by observations and multi-model assessment

Citation: Liu, M., Raymond, P.A., Lauerwald, R. <i>et al.</i> Global riverine land-to-ocean carbon export constrained by observations and multi-model assessment. <i>Nat. Geosci.</i> (2024). https://doi.org/10.1038/s41561-024-01524-z<b>Supplementary Data 1. Global riverine carbon export from watersheds.</b> DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation. <b>Supplementary Data 2. Global riverine carbon export from watersheds outputted from different machine learning models.</b> DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. GBM - gradient boosting machine. KNN - K-nearest neighbors algorithm. RF - random forest algorithm. XGBoost - extreme gradient boosting. <b>Supplementary Data 3. Gridded global riverine carbon export.</b> DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation. <b>Supplementary Data 4. Global riverine carbon export into different coastal oceans.</b> DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation. <b>Supplementary Data 5. Global riverine carbon export from different continents.</b> DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation. <b>Supplementary Data 6. Observational concentrations and export fluxes of dissolved organic carbon across different watersheds.</b> DOC - dissolved organic carbon. SD - standard deviation. <b>Supplementary Data 7. Observational concentrations and export fluxes of particulate organic carbon across different watersheds.</b> POC - particulate organic carbon. SD - standard deviation. <b>Supplementary Data 8. Observational concentrations and export fluxes of dissolved inorganic carbon across different watersheds.</b> DIC - dissolved inorganic carbon. SD - standard deviation. <b>Supplementary Data 9. Global riverine carbon export from the previously published estimates reported in this study. </b>This data includes global riverine particulate organic carbon export from the updated (Ludwig et al.; Galy et al.) estimates and global riverine particulate inorganic carbon export from the previously published and updated (GloRiSe) estimate. DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon.