Ocean Modeling Discussion

Hi, everyone

I'm using COAWST as my coupled model by activating the ROMS and WRF models. To save the calculation cost, I wish to run a two-domain WRF and one-domain ROMS.
The parent domain of WRF has the same grid as ROMS. If I don't have a two-way nested domain in the WRF, I actually do not need ...

Thank you for your quick reply.
I tried the option LMD_SHAPIRO. It still happened （figure attached).

Could it be related to my horizontal vis/diff coef?
For now, they are：
DT=60
NDTFAST=30
.
.
.
TNU2 == 30.0d0 (I tried 25, 5, 1 also)
VISC2 == 300.0d0 (I tried 100, 25, 5)

My dx=dy=21km.

I also ...

Dear all,

I'm facing a strange unrealistic discontinuity of surface salinity in my COAWST (only ROMS activated) attached below.

At the northern part, I found the freshwater flux was likely input at every other grid.
Actually, after the rain stops, the salinity was reasonably diffused by ...