(Appendix A) Dissolved manganese concentrations during POLARSTERN Cruise ARK-XXII/2 ...

• Main Authors: Middag, Rob, de Baar, Hein J W, Laan, Patrick, Klunder, Maarten B
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Event label; Latitude of event; Longitude of event; DATE/TIME; Bottle number; Elevation of event; DEPTH, water; Manganese, dissolved; Quality flag; Manganese, standard deviation; CTD/Rosette, ultra clean; ARK-XXII/2; Polarstern; Global marine biogeochemical cycles of trace elements and their isotopes GEOTRACES; International Polar Year 2007-2008 IPY; Arctic Ocean; International Polar Year; IPY; laptev; Laptev Sea; Tromsø
• Online Access: https://dx.doi.org/10.1594/pangaea.816976; https://doi.pangaea.de/10.1594/PANGAEA.816976

A total of 773 samples were analysed for dissolved manganese (Mn) in the Arctic Ocean aboard R.V. Polarstern during expedition ARK XXII/2 from 28 July until 07 October 2007 from Tromsø (Norway) to Bremerhaven. Concentrations of Mn were elevated in the surface layer with concentrations of up to 6 nM over the deep Basins and over 20 nM in the Laptev Sea. The general distribution of Mn through the water column is consistent with previous studies, but there are differences in the absolute concentrations that are most likely related to differences in sample area, sampling and filtration.The elevated concentrations of Mn in the surface layer are related to fresh water input. This was visible in the strong negative correlations observed between dissolved Mn and salinity. The correlation between Mn and salinity and the correlation between Mn and the quasi conservative trace water mass tracer PO4*, showed fluvial and melt water input and the Pacific and Atlantic origin of the surface waters. A large portion of the Mn ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...