Luke Simmons¹, Jochen Knies¹, Gesine Mollenhauer² and Mohamed Ezat³, (1)iC3: Centre for ice, Cryosphere, Carbon and Climate, Department of Geosciences, UiT – The Arctic University in Tromsø, Tromsø, Norway, (2)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (3)iC3: Centre for ice, Cryosphere, Carbon and Climate, Department of Geosciences, UiT The Arctic University of Norway, Tromsø, Norway