Ultrahigh resolution mass spectrometry characterization of dissolved organic matter from glacial systems in Greenland and Svalbard

This dataset presents dissolved organic matter (DOM) compositions of glacially fed rivers in Svalbard and Greenland. Dissolved organic carbon concentrations and compositional metrics were derived from Fourier transform ion cyclotron resonance mass spectrometry to evaluate differences in DOM composition between the two regions as well as between the glacially fed rivers and samples taken from the supraglacial environment.