Hi, i have some problems.

[kobl1201]

Hello~

i have some problems. When i run the ROMS model, the currets flow along the boundary.

As time passed, the results varied as follows :

사본 -그림1.gif (13.25 KiB) Viewed 6485 times

It seems the current can't go out the northern and eastern boundaris.

I hope that outflow is much stronger than now.

The model region is east/japan sea.

Please help me.

[kate]

You haven't told us anything about what boundary conditions you are using. Do they need external values? If so, where are those coming from and do they look reasonable?

[kobl1201]

Sorry Kate.

I used HYCOM data for boundary condition and initial data.

The boundary condition applied every 1 day.

Usually, currents in the north region flow easternward. However, my result showed converse.

[kate]

What values of LBC are you using?

[kobl1201]

Hi Kate

I set up the model like this.

ocean_ub_3k_new.in

(117.57 KiB) Downloaded 409 times

I ,also applied relaxation method and sponge layer.

However, this methods didn't slove this problems

[kate]

Code: Select all

   LBC(isFsur) ==   Clo     Cha     Cha     Cha \         ! free-surface
                    Nes     Nes     Nes     Nes
   LBC(isUbar) ==   Clo     Fla     Fla     Fla \        ! 2D U-momentum
                    Nes     Nes     Nes     Nes

Perhaps try again without the "! free-surface" and other such comments? These comments in continued lines can confuse ROMS.

[moritz.wandres]

I had a lot of boundary currents like this in the beginning which were essentially due to erroneous boundary forcing. Also I noticed you had -

M2NUDG == 0.0d0 ! days
M3NUDG == 0.0d0 ! days

Have you tried playing around with the nudging parameters?

[kobl1201]

Hello ~

i removed things such as !free-surface and then modified M2NUDG == 0.0d0 ! days, M3NUDG == 0.0d0 ! days. However, the results still showed same things.

Do you have other ideas??

Please help me