Polar Winds Model Specifications

WRF 3.6.1 with OSU BPCRC polar optimizations (Polar WRF)

  • 330 x 330 one-domain grid with 8 km spacing
  • 48 layers: Lowest levels at 7 and 14 m; 8 layers at lowest 500 m; top at 20 hPa
  • 60-sec time step; run with 20 tasks; 48-hr runs; output every 3 hr
  • Radiative time step: every 40 min
  • Morrison 2-moment microphysics
  • RRTMG longwave and shortwave radiation
  • Grell-3 cumulus parameterization
  • MYJ Planetary boundary layer and surface boundary layer
  • Noah Land surface model
  • Fractional sea ice 1.5 m thick; albedo 0.82; 5 cm snow on sea ice

The model starts twice a day at 00 & 12 UTC as its initial times. The initial and boundary conditions are interpolated from the daily 00 and 12 UTC run of the Global Forecast System (GFS) issued by the National Centers for Environmental Prediction (NCEP).

Note: LST: Local (Iceland) Standard Time

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