Adding variables that are exchanged between WRF and SWAN

[zhl-ouc]

Dear Professor Warner,
I am currently working on modifying the surface roughness parameterization scheme in the WRF model by incorporating additional wave parameters such as wave breaking and wave energy into the calculations. I noticed that in the current COAWST coupling system, SWAN only provides significant wave height, wave length, and wave period to WRF. Could you please guide me on which coupling codes I should modify and how to enable the transfer of additional SWAN parameters to the WRF model?

[jcwarner-usgs]

it would be files such as
SWAN/src/waves_coupler.F
SWAN/src/swanout1.F
WRF/frame/atm_coupler.F
and then a whole lot of other files in WRF.
Suggest you look for a variable such as Hwave and grep for that in WRF
grep -nir Hwave WRF/*
and that will give you an example of how that variable is propagating thru the wrf code.