UNGRIB - Required Fields

WRF requires a number of fields as input.

• 3D Data (e.g. data on pressure levels)
  • Temperature
  • U and V components of Wind
  • Geopotential Height
  • Relative Humidity
    (the code can calculate RH if Specific Humidity are available;
    this is controlled in the Vtable)
     
• 2D Data
  • Surface Pressure
  • Mean Sea Level Pressure
  • Skin Temperature
  • 2 meter Temperature
  • 2 meter Relative or Specific Humidity
  • 10 meter U and V components of wind

If any masked field are ingested, then a LANDSEA field is recommended

If the WRF model is going to be run with the Noah LSM model, then at least 2 levels of Soil Temperature and Soil Moisture are required.

SST is needed if you plan on updating SST during the model run (often done for very long simulations).

Soil Height is recommended but not required. If Soil Height is supplied, then SOIL Temperatures and TSK can be adjusted to the WRF model terrain height.

Water equivalent snow depth (SNOW) is a nice to have, but not required.

Sea Ice is good to have for high latitude winter case, but it is not required.