ROMS-I4DVAR: How to use adjusted surface forcing and open boundary?

[onecountry]

Hello everyone,
Currently I have run the ROMS-I4DVAR on my own domain successfully.
I wonder how to use the adjusted surface forcing(sfc) and open boundary(obc) generated by I4DVAR?
So far I know that the file for saving the adjusted initial condition(ini) to restart model is ocean_dai.nc.

i.e. How use adjusted ini, obc and sfc to force another model, like roms with nudging.

Any suggestions will be helpful.

Thanks!

Best regards

Oly