(Table 1) Salinity, dissolved organic carbon and absorption characteristics of surface river waters around Hudson Bay ...

• Main Authors: Guéguen, Celine, Granskog, Mats A, McCullough, G, Barber, David G
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Event label; Latitude of event; Longitude of event; Area/locality; DATE/TIME; Date/time end; Station label; Salinity; Carbon, organic, dissolved; Absorption coefficient, 355 nm; -; Slope; Water sample; International Polar Year 2007-2008 IPY; Hudson Bay; Hudson Strait; International Polar Year; IPY
• Online Access: https://dx.doi.org/10.1594/pangaea.810341; https://doi.pangaea.de/10.1594/PANGAEA.810341

Composition and concentration of colored dissolved organic matter (CDOM) have been determined in Hudson Bay and Hudson Strait by excitation emission matrix spectroscopy (EEM) and parallel factor analysis (PARAFAC). Based on 63 surface samples, PARAFAC identified three fluorescent components, which were attributed to two humic- and one protein-like components. One humic-like component was identified as representing terrestrial organic matter and showed a conservative behaviour in Hudson Bay estuaries. The second humic-like component, traditionally identified as peak M, originated both from land and produced in the marine environment. Component 3 had spectra resembling protein-like material and thought to be plankton-derived. The distribution and composition of CDOM were largely controlled by water mass mixing with protein-like component being the least affected. Distinctive fluorescence patterns were also found between Hudson Bay and Hudson Strait, suggesting different sources of CDOM. The optically active ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...