[MITgcm-support] Open boundary conditions for Internal Waves.

[Jody Klymak]

Hi Jeremy,

It would be helpful to know what you are trying to simulate.  Overall, I have found internal waves are best set using a wide sponge (L\sim mode-1 wavelength) either with obcs or with rbcs packages.

Cheers,   Jody  

> On 25 May 2021, at 00:14, Jeremy Miller <jeremysharonmiller at gmail.com> wrote:
> 
> Dear MITgcm forum,
> 
> I'm sorry for sending multiple emails. The above error I did resolve. I would still be happy to learn what the default OBCs are, and how to custom create OBCs.
> Best
> Jeremy
> 
> 
> On Tue, 25 May 2021 at 08:50, Jeremy Miller <jeremysharonmiller at gmail.com <mailto:jeremysharonmiller at gmail.com>> wrote:
> Dear MITgcm forum,
> 
> Hope everyone's well. Following yesterday's email and reading Section 8.3.1.4.1 of the docs I attempted to change the file data.obcs myself, because I wanted to move from the default grid to Nx ✕ Ny = 120 ✕ 60 .  Accordingly I changed data.obcs to
> 
> # Open-boundaries
>  &OBCS_PARM01
>  OB_Ieast = 60*-1,
>  OB_Iwest = 60*1,
>  OB_Jnorth = 120*-1,
>  OB_Jsouth = 120*1,
>  &
> 
> After running I get this error:
> 
> At line 2509 of file obcs_readparms.f (unit = 11, file = 'scratch1.000000000')
> Fortran runtime error: Cannot match namelist object name c
> 
> Please, could you advise.
> 
> Best
> Jeremy
> 
> On Mon, 24 May 2021 at 13:27, Jeremy Miller <jeremysharonmiller at gmail.com <mailto:jeremysharonmiller at gmail.com>> wrote:
> Dear MITgcm forum,
> 
> Hope all are well. I want to input open boundary conditions (OBCs) for the internal wave verification. I have a few questions.
> 
> 1. What are the default OBCs ? 
> 2. How does one change the OBCs? I was reading through obcs_calc.F and I found it somewhat difficult to understand (not coming with a Fortran background).
> 3. Is it possible to output the OBCs from a short python snippet? 
> 
> Best
> Jeremy Miller
> 
> 
> 
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support

--
Jody Klymak    
http://ocean-physics.seos.uvic.ca/~jklymak/






-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20210525/9e41cc26/attachment.html>