Run WRF with DFI

[JiaWang]

DFI involves backward integration and forward integration.
Say the initialization time is 06z, and the boundary conditions are from 06z to 18z.
Can DFI run successfully without boundary conditions before 06z?

 

[JiaWang]

I found from WRF tech note that, "When specified boundary conditions are used, as in Section 6.4, the model boundaries before the model initial time are taken to be the same as those valid at the model initial time. "