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Influence Of Arctic Wetlands On Arctic Atmospheric Circulation, William J. Gutowski Jr., Helen Wei, Charles J. Vörösmarty, Balazs M. Fekete
Influence Of Arctic Wetlands On Arctic Atmospheric Circulation, William J. Gutowski Jr., Helen Wei, Charles J. Vörösmarty, Balazs M. Fekete
Advanced Science Research Center
The Arctic’s land surface has large areas of wetlands that exchange moisture, energy, and momentum with the atmosphere. The authors use a mesoscale, pan-Arctic model simulating the summer of 1986 to examine links between the wetlands and arctic atmospheric dynamics and water cycling. Simulations with and without wetlands are compared to simulations using perturbed initial and lateral boundary conditions to delineate when and where the wetlands influence rises above nonlinear internal variability. The perturbation runs expose the temporal variability of the circulation’s sensitivity to changes in lower boundary conditions. For the wetlands cases examined here, the period of the most …