VIKING20X

Atlantic Nest at 1/20°

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

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