Charlotte Haugk

Affiliated MSc student, Alfred Wegener Institute (AWI)

MSc Project: Riverine nitrogen characteristics in Arctic rivers

Supervisors: Jens Strauss (AWI), Guido Grosse (AWI), Paul Mann (Northumbria University)

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

CACOON is co-funded by the German Federal Ministry of Education and Research and by NERC.