• Eddy Kinetic Energy in the Arctic Ocean From a Global Simulation With a 1-km Arctic 

      Wang, QiangORCIDiD; Koldunov, Nikolay V.ORCIDiD; Danilov, SergeyORCIDiD; Sidorenko, DmitryORCIDiD; Wekerle, ClaudiaORCIDiD; Scholz, PatrickORCIDiD; Bashmachnikov, Igor L.ORCIDiD; Jung, ThomasORCIDiD (Geophysical Research Letters, 2020)
      Simulating Arctic Ocean mesoscale eddies in ocean circulation models presents a great challenge because of their small size. This study employs an unstructured-mesh ocean-sea ice model to conduct a decadal-scale global ...
    • Fast EVP Solutions in a High-Resolution Sea Ice Model 

      Koldunov, Nikolay V.ORCIDiD; Danilov, SergeyORCIDiD; Sidorenko, DmitryORCIDiD; Hutter, NilsORCIDiD; Losch, MartinORCIDiD; Goessling, HelgeORCIDiD; Rakowsky, NataljaORCIDiD; Scholz, PatrickORCIDiD; Sein, DmitryORCIDiD; Wang, QiangORCIDiD; Jung, ThomasORCIDiD (Journal of Advances in Modeling Earth Systems, 2019)
      Sea ice dynamics determine the drift and deformation of sea ice. Nonlinear physics, usually expressed in a viscous-plastic rheology, makes the sea ice momentum equations notoriously difficult to solve. At increasing sea ...
    • Improving the ocean and atmosphere in a coupled ocean–atmosphere model by assimilating satellite sea-surface temperature and subsurface profile data 

      Tang, QiORCIDiD; Mu, LongjiangORCIDiD; Sidorenko, DmitryORCIDiD; Goessling, HelgeORCIDiD; Semmler, TidoORCIDiD; Nerger, LarsORCIDiD (Quarterly Journal of the Royal Meteorological Society, 2020)
      An ensemble-based data assimilation framework for a coupled ocean–atmosphere model is applied to investigate the influence of assimilating different types of ocean observations on the ocean and atmosphere simulation. The ...
    • Intensification of the Atlantic Water Supply to the Arctic Ocean Through Fram Strait Induced by Arctic Sea Ice Decline 

      Wang, QiangORCIDiD; Wekerle, ClaudiaORCIDiD; Wang, XuezhuORCIDiD; Danilov, SergeyORCIDiD; Koldunov, NikolayORCIDiD; Sein, DmitryORCIDiD; Sidorenko, DmitryORCIDiD; von Appen, Wilken-JonORCIDiD; Jung, ThomasORCIDiD (Geophysical Research Letters, 2020)
      Substantial changes have occurred in the Arctic Ocean in the last decades. Not only sea ice has retreated significantly, but also the ocean at middepth showed a warming tendency. By using simulations we identified a mechanism ...
    • Ocean Heat Transport Into the Barents Sea: Distinct Controls on the Upward Trend and Interannual Variability 

      Wang, QiangORCIDiD; Wang, XuezhuORCIDiD; Wekerle, ClaudiaORCIDiD; Danilov, SergeyORCIDiD; Jung, ThomasORCIDiD; Koldunov, NikolayORCIDiD; Lind, SigridORCIDiD; Sein, DmitryORCIDiD; Shu, QiORCIDiD; Sidorenko, DmitryORCIDiD (Geophysical Research Letters, 2019)
      Ocean heat transport through the Barents Sea Opening (BSO) has strong impacts on the Barents Sea ice extent and the climate. In this paper we quantified the contributions from different atmospheric forcing components to ...
    • Ocean Kinetic Energy Backscatter Parametrization on Unstructured Grids: Impact on Global Eddy-Permitting Simulations 

      Juricke, Stephan; Danilov, SergeyORCIDiD; Koldunov, NikolayORCIDiD; Oliver, Marcel; Sidorenko, DmitryORCIDiD (Journal of Advances in Modeling Earth Systems, 2020)
      In this study we demonstrate the potential of a kinetic energy backscatter scheme for use in global ocean simulations. Ocean models commonly employ (bi)harmonic eddy viscosities causing excessive dissipation of kinetic ...
    • Ocean Model Formulation Influences Transient Climate Response 

      Semmler, TidoORCIDiD; Jungclaus, JohannORCIDiD; Danek, ChristopherORCIDiD; Goessling, Helge F.ORCIDiD; Koldunov, Nikolay V.ORCIDiD; Rackow, ThomasORCIDiD; Sidorenko, DmitryORCIDiD (Journal of Geophysical Research: Oceans, 2021-12-05)
      The transient climate response (TCR) is 20% higher in the Alfred Wegener Institute Climate Model (AWI‐CM) compared to the Max Planck Institute Earth System Model (MPI‐ESM) whereas the equilibrium climate sensitivity (ECS) ...