Nitrogen acts as a limiting factor for the primary productivity in the coastal Arctic. Understanding the link between dissolved nitrogen dynamics, including its origin and its pathway through Arctic rivers, and coastal primary productivity is critical to foresee upcoming changes in the Arctic. Getting a step closer to define source and fate of riverine nitrogen and its potential effect for primary productivity in Arctic coastal waters, could lead to better understanding of the nutrient load associated with permafrost thaw, and thus warming climate in arctic environments. The project additionally provides contributory material for the CACOON project (Changing Arctic Carbon cycle in the cOastal Ocean Near-shore).
Major objective of the project
This master project aims:
to quantify amount of dissolve nitrogen, nutrients and ions
to characterise their isotope signal
to investigate dynamics of DIN and DON
to foresee potential change in Arctic coastal primary productivity
to grasp the direct impact of increased nutrient load via river discharge and permafrost thaw
