Can WRF output data be used for Input data on smaller domain

[Deleted member 3607]

I have a 4km 120hr WRF run that is created in 5hrs.

But when I nest in a 1km grid it increases the time dramatically to finish the run.

So my question is can I use the output from the 4km 120hr run as initial data for a new wrf run at 1km?

I don't see a vtable in ungrib for WRF on ARGWRF. So I'm not sure if this can be done.

 

[Ming Chen]

In this case I would suggest you run the 1km case using ndown. Please see details of ndown option at

Chapter 5: WRF Model

A step-by-setp instruction how ro run ndown can be found here:

ARW OnLine Tutorial