Overview of DCPOM project

1. Target
2. Models

Target

DCPOM project designs and develops ocean general circulation models and sea ice models in order to explore climates realzied on exoplanets.

Models

Global OGCM for ocean planet climates (dogcm)

• Ocean component
  • Dynamical core: hydrostatic Boussinesq equations
  • Parameterizations for sub-grid scale processes
    • Meso-scale eddy mixing
      • isopycnal diffusion scheme (Redi, 1982)
      • GM scheme based on skew flux (Gent and McWilliams, 1990; Griffies et al, 1998)
    • Convective mixing
      • convective adjustment scheme (Marotzke, 1991)
  • Numerical method
    • horizontal discretization: a spectral Eulerian method based spherical harmonics
    • vertical discretization: a finite volume method
    • time discretization
      • a LF-AM3 scheme (Shchepetkin and McWilliams, 2005) for advective process
      • a leapfrog scheme for fast wave process and vertical diffusive process, a backward Euler scheme for lateral diffusive process
• Sea ice component
  • Thermodynamic 3 layers sea ice model based on a formulation by Winton(2000).
• Note
  • This ocean-sea ice model can couple to an atmospheric general circulation model DCPAM. For details, please see DCPCM project.
  • Coast lines can not be considered in the model

Experimental models

• Global shallow water model with a finite volume method (globalSWM-FVM)
  • The grid sysyem is triangle - hexagonal grid, and the governing equations are discretized with TRiSK proposed by Ringler et al. (2010).
• Global shallow water model with a discontinuous Galerkin method (globalSWM-DG)
  • The model mesh is spherical triangle mesh, and the governing equation are discretized with a DG method proposed by Lauter et al. (2008).

dcmodel Development Group / GFD Dennou Staff
Last Updated: unknown, Since: unknown