Boundary forcing condition

[q1165600785]

I can only use the sea surface height calculated by the tidal model tpoxv10 as the height of the free surface height (SSH) boundary, without paying attention to velocities and traces, because I only study tidal height (vertical direction) and not tidal flow velocity (horizontal direction)，Can region-mom6 be achieved（Or the tidal velocity remains constant）

The following FVCOM ocean models
The following FVCOM ocean model boundary types, mom6 has similar boundary options, I just want TYPE_OBC = 1: Surface Elevation Specified (Tidal Forcing) (ASL) , can mom6 get similar settings
!==============================================================================!
! TYPE_OBC = 1: Surface Elevation Specified (Tidal Forcing) (ASL) !
! TYPE_OBC = 2: AS TYPE_OBC=1 AND NON-LINEAR FLUX FOR CURRENT AT OPEN BOUNDARY !
! TYPE_OBC = 3: Zero Surface Elevation Boundary Condition (ASL_CLP) !
! TYPE_OBC = 4: AS TYPE_OBC=3 AND NON-LINEAR FLUX FOR CURRENT AT OPEN BOUNDARY !
! TYPE_OBC = 5: GRAVITY-WAVE RADIATION IMPLICIT OPEN BOUNDARY CONDITION (GWI) !
! TYPE_OBC = 6: AS TYPE_OBC=5 AND NON-LINEAR FLUX FOR CURRENT AT OPEN BOUNDARY !
! TYPE_OBC = 7: BLUMBERG AND KHANTA IMPLICIT OPEN BOUNDARY CONDITION (BKI) !
! TYPE_OBC = 8: AS TYPE_OBC=7 AND NON-LINEAR FLUX FOR CURRENT AT OPEN BOUNDARY !
! TYPE_OBC = 9: ORLANSKI RADIATION EXPLICIT OPEN BOUNDARY CONDITION (ORE) !
! TYPE_OBC =10: AS TYPE_OBC=9 AND NON-LINEAR FLUX FOR CURRENT AT OPEN BOUNDARY !
! !
! TYPE_TSOBC = 1: THE PERTURBATION OF TEMPERATURE AND SALINITY AT OPEN BOUNDARY!
! ARE EQUAL TO THAT AT NEXT_OBC !
! TYPE_TSOBC = 2: GRAVITY-WAVE RADIATION IMPLICIT OPEN BOUNDARY CONDITION FOR !
! THE PERTURBATION OF TEMPERATURE AND SALINITY !
! TYPE_TSOBC = 3: BLUMBERG AND KHANTA IMPLICIT OPEN BOUNDARY CONDITION FOR !
! THE PERTURBATION OF TEMPERATURE AND SALINITY !
! TYPE_TSOBC = 4: ORLANSKI RADIATION EXPLICIT OPEN BOUNDARY CONDITION FOR !
! THE PERTURBATION OF TEMPERATURE AND SALINITY !
!==============================================================================!

[awallcraft]

In HYCOM we find that using tidal boundary conditions on both SSH (bottom pressure anomaly) and velocity improves the tides. So you may want to try doing this in FVCOM and/or MOM6 to see if it helps.

Velocity is tricky because the model and TPXO (say) have different bathymetries, so there are at least two options a) use TPXO velocities and b) use TPXO transports. In practice the difference between the two isn't large except in very shallow water.

[q1165600785]

Thank you very much for your help. I would like to compare the tidal simulation results of running mom6 with those of running fvcom. How can I open a tidal simulation instance in mom6 and enable online harmonic analysis? Professor, can you help me