Climate-driven local amplifications of terrestrial dissolved organic carbon in the Arctic Ocean amid basin-scale stability

This dataset includes ~1,000 surface-water observations from published Arctic Ocean studies, covering DOC concentrations, CDOM spectral slopes (S275–295), and DOC-normalized total dissolved lignin phenol yields (TDLP9-C, %DOC), estimated from S275–295, as an indicator of terrestrial DOC contribution.