Spatially varied bottom roughness

[ShimaKasaei]

Hi all,

I have a question regarding defining spatially varied Zo. I have calculated Zo for my whole domain based on C-CAP values, and I have added them as variable ZoBot to my grid file in the model.
I also defined UV_DRAG_GRID in my .h file to enable the model to use spatially varied bottom roughness.

The issue is, when I am running the model, I cannot see much changes in the velocity, although I do have max(ZoBot) of my domain equal to 0.36 meter!!

I thought maybe that is because of cdb max cap limit in the ROMS/Modules/mod_scalars.F, but it did not change after increasing the cap limit as well.

I think maybe there is an issue that model is not considering the spatially varied ZoBot, although it reads and shows in the roms_his.nc file.

Is there any step that I am missing??
Does anyone have any thoughts or suggestions?

I do appreciate any hint.

Best,
Shima

[wilkin]

Do you have ...

Code: Select all

  #define UV_LOGDRAG

[ShimaKasaei]

Yes, I have it in the .h file.