[MITgcm-support] external&internal mode, boundary

[Martin Losch]

Riema,
On 17 Jan 2007, at 12:54, Riema Rachmayani wrote:

> hi all,
>
> i have some questions...
> 1. just to make sure, are MITgcm use splitting method for 3D and 2D  
> (external and internal mode)??
No, I don't think that the solution strategy is called splitting  
method. The 2D pressure is computed first, and then a non-hydrostatic  
correction (if you use non-hydrostatic dynamics) to it. Please refer  
to the manual for a description, eg here: http://mitgcm.org/pelican/ 
online_documents/node19.html
>
> 2. are treatment for OB Ie = Imax is given value from boundary, OBIe 
> (Imax-1)=OBIe(Imax)?? what about OBIe (Imax+1)??
>    OB Iw = 1 is given value from boundary, OBIw(2)=OBIw(1)??
I don't understand the question. OB_Ieast = -1 make to the last (nx)  
grid point in x-direction a boundary value, just a, OB_Ieast = (value  
of)nx would. OB_Iwest(1) makes the first grid point in x-direction a  
boundary point etc. In the code sometime the values are applied to  
more than one grid, but only on the outside of the domain.
>
> 4. any formula for OBWt and OBWw for non hydrostatic, because i  
> used default OBWt and OBWw in internal wave verification
Don't know.

Martin

>
>
> thank you..thank you...
> -regards-
> rima
>
>
>
> ----- Original Message ----
> From: "mitgcm-support-request at mitgcm.org" <mitgcm-support- 
> request at mitgcm.org>
> To: mitgcm-support at mitgcm.org
> Sent: Friday, January 12, 2007 12:00:13 AM
> Subject: MITgcm-support Digest, Vol 43, Issue 6
>
> Send MITgcm-support mailing list submissions to
>     mitgcm-support at mitgcm.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
>     http://mitgcm.org/mailman/listinfo/mitgcm-support
> or, via email, send a message with subject or body 'help' to
>     mitgcm-support-request at mitgcm.org
>
> You can reach the person managing the list at
>     mitgcm-support-owner at mitgcm.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of MITgcm-support digest..."
>
>
> Today's Topics:
>
>    1. splitting method, boundary (Riema Rachmayani)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 11 Jan 2007 01:58:48 -0800 (PST)
> From: Riema Rachmayani <imoth_22 at yahoo.com>
> Subject: [MITgcm-support] splitting method, boundary
> To: mitgcm-support at mitgcm.org
> Message-ID: <20070111095848.36191.qmail at web53811.mail.yahoo.com>
> Content-Type: text/plain; charset="us-ascii"
>
> hi all,
>
> i have some questions...
> 1. just to make sure, are MITgcm use splitting method for 3D and 2D  
> (external and internal mode)??
>
> 2. still about how to write the value of U, V, w, T,Eta (1,j,bi,bj)  
> along West Open Boundary and East Open Bondary....i've tried one  
> like Martin told me " in obcs_diags.F you could replace a line like
>          CALL PLOT_FIELD_YZRL( OBWu, 'OBWu' , Nr, myIter, mythid )
> which plots output to stdout by
>            WRITE(suff,'(I10.10)') myIter
>            CALL WRITE_FLD_YZ_RL( 'OBCWu.',suff,OBWu,myIter,myThid)"...
> it was work...i have OBWU output file in every time step...but it  
> makes "no space in my device". Now i want to write  U, V, w, T,Eta  
> (1,j,bi,bj) along West Open Boundary and East Open Bondary in every  
> time step or every one hour in one output file, so i can sketch the  
> profile of U, V, w, T, Eta (1,j,bi,bj) for one tidal period...can  
> you give me more code for that again?? still modify obcs_diags.F??  
> or use other subroutine like use MDSREADFIELDYZ??....thank martin
>
> 3. are treatment for OB Ie = Imax is given value from boundary, OBIe 
> (Imax-1)=OBIe(Imax)?? what about OBIe (Imax+1)??
>    OB Iw = 1 is given value from boundary, OBIw(2)=OBIw(1)??
>
> 4. OBWu=A/D*Co*Cos (kx-omega*t) it seem not enough to generate  
> internal wave in my case, thats way i need to sketch profile of U,  
> V, w, T, Eta along open bondary...
>
>
> thank you..thank you...
> -regards-
> rima
>
> Send instant messages to your online friends http:// 
> uk.messenger.yahoo.com
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: http://forge.csail.mit.edu/pipermail/mitgcm-support/ 
> attachments/20070111/ccfbb54e/attachment-0001.html
>
> ------------------------------
>
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mitgcm.org/mailman/listinfo/mitgcm-support
>
>
> End of MITgcm-support Digest, Vol 43, Issue 6
> *********************************************
>
>
> Send instant messages to your online friends http:// 
> uk.messenger.yahoo.com
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org
> http://mitgcm.org/mailman/listinfo/mitgcm-support