Rationale for WRF Configuration

• Multi-core:

  • Previous studies by Du (2004), Buizza and Toth (2005)
  • Multi-physics by Stensrud (2000), McQueen (2005)… showed improved spread especially in warm season
  • Proposed increase to
    • 4 model cores (Eta, RSM, WRF-NMM, WRF-ARW)
    • 6 different physics configurations

• GFS initial atmospheric conditions (used for WRF members):

  • Near equal number of members initialized by EDAS (10) and GDAS (11)
  • WRF SI can only ingest pressure grids
  • WRF GSI not available for North American Initial conditions yet

• NDAS Land States:

  • WRF NOAH LSM uses same land-use types as in NDAS
  • (24 soil types, 13 land use types)