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. et al. Global riverine land-to-ocean carbon export constrained by observations and multi-model assessment. Nat. Geosci. (2024). https://doi.org/10.1038/s41561-024-01524-z
Supplementary Data 1. Global riverine carbon export from watersheds. DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation.
Supplementary Data 2. Global riverine carbon export from watersheds outputted from different machine learning models. 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.
Supplementary Data 3. Gridded global riverine carbon export. DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation.
Supplementary Data 4. Global riverine carbon export into different coastal oceans. DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation.
Supplementary Data 5. Global riverine carbon export from different continents. DOC - dissolved organic carbon. POC - particulate organic carbon. DIC - dissolved inorganic carbon. PIC - particulate inorganic carbon. SD - standard deviation.
Supplementary Data 6. Observational concentrations and export fluxes of dissolved organic carbon across different watersheds. DOC - dissolved organic carbon. SD - standard deviation.
Supplementary Data 7. Observational concentrations and export fluxes of particulate organic carbon across different watersheds. POC - particulate organic carbon. SD - standard deviation.
Supplementary Data 8. Observational concentrations and export fluxes of dissolved inorganic carbon across different watersheds. DIC - dissolved inorganic carbon. SD - standard deviation.
Supplementary Data 9. Global riverine carbon export from the previously published estimates reported in this study. 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.

引用：Liu M、Raymond P A、Lauerwald R 等. 基于观测约束与多模型评估的全球河流陆地-海洋碳输出. 自然·地球科学（Nat. Geosci.），2024. https://doi.org/10.1038/s41561-024-01524-z
补充数据集1：流域尺度全球河流碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）、标准差（standard deviation，SD）。
补充数据集2：不同机器学习模型输出的流域尺度全球河流碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）；模型缩写包括梯度提升机（gradient boosting machine，GBM）、K近邻算法（K-nearest neighbors algorithm，KNN）、随机森林算法（random forest algorithm，RF）、极限梯度提升（extreme gradient boosting，XGBoost）。
补充数据集3：网格化全球河流碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）、标准差（standard deviation，SD）。
补充数据集4：输入至不同沿海海域的全球河流碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）、标准差（standard deviation，SD）。
补充数据集5：不同大洲来源的全球河流碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）、标准差（standard deviation，SD）。
补充数据集6：不同流域的溶解有机碳观测浓度与输出通量数据。其中溶解有机碳（dissolved organic carbon，DOC）、标准差（standard deviation，SD）。
补充数据集7：不同流域的颗粒有机碳观测浓度与输出通量数据。其中颗粒有机碳（particulate organic carbon，POC）、标准差（standard deviation，SD）。
补充数据集8：不同流域的溶解无机碳观测浓度与输出通量数据。其中溶解无机碳（dissolved inorganic carbon，DIC）、标准差（standard deviation，SD）。
补充数据集9：本研究引用的已发表全球河流碳输出估算数据集。该数据集包含更新版（Ludwig等；Galy等）的全球河流颗粒有机碳输出数据，以及经更新的已发表GloRiSe全球河流颗粒无机碳输出数据。其中溶解有机碳（dissolved organic carbon，DOC）、颗粒有机碳（particulate organic carbon，POC）、溶解无机碳（dissolved inorganic carbon，DIC）、颗粒无机碳（particulate inorganic carbon，PIC）。