Articles | Volume 15, issue 13
Research article
07 Jul 2015
Research article |  | 07 Jul 2015

800-year ice-core record of nitrogen deposition in Svalbard linked to ocean productivity and biogenic emissions

I. A. Wendl, A. Eichler, E. Isaksson, T. Martma, and M. Schwikowski


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Latest update: 26 Feb 2024
Short summary
Nitrate and ammonium ice core records from Lomonosovfonna, Svalbard, indicated anthropogenic pollution from Eurasia as major source during the 20th century. In pre-industrial times nitrate is correlated with methane sulfonate, which we explain with a fertilising effect, presumably triggered by enhanced atmospheric nitrogen input to the ocean. Eurasia was likely the main source area also of pre-industrial nitrate, but for ammonium, biogenic emissions from Siberian boreal forests were dominant.
Final-revised paper