Thermokarst lake dynamics and its influence on biogeochemical sediment characteristics: A case study from the discontinuous permafrost zone in Interior Alaska

Josefine Lenz1,2, Katey M Walter Anthony3, Chris Maio4, Filip Matuszewski1,5 and Guido Grosse6, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Potsdam, Germany, (2)University of Alaska Fairbanks, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Water and Environmental Research Center, Fairbanks, United States, (4)University of Alaska Fairbanks, Alaska Coastal Geoscience Lab, Fairbanks, United States, (5)Free University of Berlin, Berlin, Germany, (6)Alfred Wegener Institute Helmholtz Center for Polar and Marine Research, Permafrost Research Section, Potsdam, Germany