How to choose the Lateral Boundary Conditions

General scientific issues regarding ROMS

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zhengyx
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Joined: Wed Nov 28, 2018 3:00 pm
Location: Shanghai typhoon institute

How to choose the Lateral Boundary Conditions

#1 Unread post by zhengyx »

An idealized experiment is designed using ROMS to investigate the SST response to an idealized TC. The model domain is a rectangular area, and it is set to be land with a 500km width from the left (western) boundary, the other three sides are open boundaries. There is no background velocity. Horizontally uniform temperature and salinity fields a specified for the whole domain. The initial temperature and salinity profiles are from buoy data. There is no lateral boundary forcing in this experiment. The wind forcing is imposed using a Rankine vortex. The TC center moves from the east boundary the to west boundary along the middle line of the domain. How can I set the fllowing Lateral Boundary Condition in ocean.in? Is it need to set a spin-up time for this experiment?

Thank you for taking the time to read this issue.

! W S E N
! e o a o
! s u s r
! t t t t
! h h
!
! 1 2 3 4


LBC(isFsur) == ! free-surface
LBC(isUbar) == ! 2D U-momentum
LBC(isVbar) == ! 2D V-momentum
LBC(isUvel) == ! 3D U-momentum
LBC(isVvel) == ! 3D V-momentum
LBC(isMtke) == ! mixing TKE

LBC(isTvar) == \ ! temperature
! salinity

! Wec boundary conditions

LBC(isU2Sd) == ! 2D U-stokes
LBC(isV2Sd) == ! 2D V-stokes
LBC(isU3Sd) == ! 3D U-stokes
LBC(isV3Sd) == ! 3D V-stokes

! InWave boundary conditions

LBC(isAC3d) == ! 3D wave action density
LBC(isCT3d) == ! 3D wave theta celerity
LBC(isCX3d) == ! 3D wave x-dir celerity
LBC(isCY3d) == ! 3D wave y-dir celerity

! Ice boundary conditions

LBC(isAice) == ! ice concentration
LBC(isHice) == ! ice thickness
LBC(isHsno) == ! snow thickness
LBC(isTice) == ! ice temperature
LBC(isApond)== ! surface water
LBC(isHpond)== ! surface water
LBC(isSig11)== ! sigma-11
LBC(isSig12)== ! sigma-12
LBC(isSig22)== ! sigma-22
LBC(isUice) == ! ice U-momentum
LBC(isVice) == ! ice V-momentum

! Adjoint-based algorithms can have different lateral boundary
! conditions keywords.

ad_LBC(isFsur) == ! free-surface
ad_LBC(isUbar) == ! 2D U-momentum
ad_LBC(isVbar) == ! 2D U-momentum
ad_LBC(isUvel) == ! 3D U-momentum
ad_LBC(isVvel) == ! 3D V-momentum
ad_LBC(isMtke) == ! mixing TKE

ad_LBC(isTvar) == \ ! temperature
! salinity

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