Ocean Circulation and Climate Dynamics

VIKING20X

HLRNAtlantic Nest at 1/20°

Global Bathymetry (based on BlueMarble by the NASA Visible Earth Project). Boundaries of the AGRIF nest are shown as yellow frame.

The predecessor VIKING20 with its 1/20° nest in the polar/subpolar North Atlantic, hosted in a global 1/4° model, showed significant improvements in the deep water mass properties due to its capability to resolve almost the full spectrum of mesoscale variability in this region. To profit from this enhancement by lower-end mesoscale activity throughout the whole Atlantic basin, the original nest is extended southward, now connecting the Southern Ocean with the North Atlantic.

 

 

Person in charge: Klaus Getzlaff

Sea Surface Temperature (SST) with shading from Sea Surface Height (SSH) overlayed with Sea Ice Coverage from VIKING20X simulation.

 

 

Characteristics

Global
  • NEMO ocean
  • LIM2 sea ice (elastic-viscous rheology)
  • Tripolar ORCA grid
  • CORE-II forcing
Host:
Nest
  • Grid Points: 2404*2499*46
  • Typical Grid Point Distance: < 3km at 60°N
  • Time Step: 300s

Simulations

  • Spinup 1980-2009 initialisation from Levitus hydrography with Ice initialisation (1993)
  • Hindcast 1980-2009 (start from year 2009 of Spinup)

HPC

  • Simulations and numerical experiments with this configuration are mostly done using high performance computing facilities at HLRN
 

Projects

  • RACE II

Models

Global


Global + Nest

 


Regional
Process-oriented

Model and Data Management

For general questions about the model configurations and data access, please contact:

Dr. Markus Scheinert
West Shore Building
Room 427
Phone: 0431 600-4014
email: mscheinert(at)geomar.de

Dr. Klaus Getzlaff
West Shore - Alte Botanik
Room 51
Phone: 0431 600-4179
email: kgetzlaff(at)geomar.de