[MITgcm-support] Unstructured open boundaries

Tue Oct 8 22:34:22 EDT 2019

Hi Martin,

I wrote an email two weeks ago about this matter with a diagram. If you did not get it to try to check the junk box, for some reason the mails from mitgcm are finishing in my junk box. I found out that the obsc_check file has issues when there is a boundary point at the corner. In those cases, the model thinks that there are two boundaries (e.g. upper and lateral). Even if the west and east boundary indexes are set 0, the model sends you an error related with the mask. Martin, do you think is it worth to write a small section about this in the manual?

Kind regards,

Estanislao

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De: MITgcm-support <mitgcm-support-bounces at mitgcm.org> en nombre de mitgcm-support-request at mitgcm.org <mitgcm-support-request at mitgcm.org>
Enviado: martes, 8 de octubre de 2019 18:00
Para: mitgcm-support at mitgcm.org <mitgcm-support at mitgcm.org>
Asunto: MITgcm-support Digest, Vol 196, Issue 2

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Today's Topics:

   1. Re: Unstructured open boundaries (Martin Losch)

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Message: 1
Date: Tue, 8 Oct 2019 17:42:26 +0200
From: Martin Losch <Martin.Losch at awi.de>
To: MITgcm Support <mitgcm-support at mitgcm.org>
Subject: Re: [MITgcm-support] Unstructured open boundaries
Message-ID: <71C1F42D-59A2-4292-8AA8-59409BF7EA0D at awi.de>
Content-Type: text/plain; charset="us-ascii"

Hi,
did you get an answer? In Fortran namelists, you are overwriting your first asignment by the second one. I suggest this (although I am not quite sure if I understood, what you want to do):

# this assumes that Ny = 81
 OB_Ieast=81*0,
 OB_Iwest=81*0,
# combine your two lines into one each
 OB_Jnorth=28*0,3*80,19*-1,3*80,28*0,
 OB_Jsouth=28*0,3*2,19*1,3*2,28*0,

Martin

> On 18. Sep 2019, at 04:34, Estanislao Gavilan Pascual-Ahuir <dramauh at hotmail.com> wrote:
>
> Dear Community,
>
> A few weeks ago I found a post in our email list about this but I cannot find it again. I would like to open boundaries in different rows.. For example I was thinking to do this but it is wrong.. As you can read I want to open 19 points in middle of the first and last row. Then I want to open 3 points and then other three points in the second row and the before the last row. I think it can be done but I am no doing something correctly. The forcing files are a single row with 81 points where your can find the specific values from the 29th to the 53rd column. Thanks in advance for your help.
>
> Kind regards,
>
> Estanislao
>
> # Open-boundaries
>  &OBCS_PARM01
>  OBCSfixTopo=.FALSE.,
>  OB_Ieast=0,
>  OB_Iwest=0,
>  OB_Jnorth=31*0,19*-1,31*0,
>  OB_Jnorth=28*0,3*80,19*0,3*80,28*0,
>  OB_Jsouth=28*0,3*2,19*0,3*2,28*0,
>  OB_Jsouth=31*0,19*1,31*0,
>  useOBCSprescribe = .TRUE.,
>  OBNvFile = 'OBzonaloutV05.bin',
>  OBSvFile = 'OBzonalinV05.bin',
>  OBNuFile = 'OBmeridoutU05.bin',
>  OBSuFile = 'OBmeridinU05.bin',
>
>
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> MITgcm-support at mitgcm.org
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