[MITgcm-support] MITgcm-support Digest, Vol 260, Issue 3

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Dear Dimitris and MITgcm Support community,

I have a question regarding the generation of cubed-sphere grid files.

I ran the gen510grid.m script from the following repository:
https://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/high_res_cube/matlab-grid-generator/

The script seemed to have successfully generated files such as DXC.bin, but I couldn’t find any output files in the format grid_cs510.face001.bin, grid_cs510.face006.bin, etc., which are typically used as input in MITgcm simulations.

Could you please advise how to generate these grid_cs510.faceXXX.bin files?
Are there any additional scripts or steps required beyond executing gen510grid.m?

Thank you very much for your assistance.


Best regards,
Fisher





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> 1. Re: cubed sphere question - higher resolution grid files?
> (Dimitris Menemenlis)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 9 Feb 2025 11:15:20 -0800
> From: Dimitris Menemenlis dmenemenlis at gmail.com
> 
> To: MITgcm Support mitgcm-support at mitgcm.org
> 
> Subject: Re: [MITgcm-support] cubed sphere question - higher
> resolution grid files?
> Message-ID: 52B66E10-66A6-470A-BF7C-A3BE742209E2 at gmail.com
> 
> Content-Type: text/plain; charset="utf-8"
> 
> Hi Flynn, in case cs96 is not sufficient, a set of routines that can generate cubed-sphere topologies is available here:
> https://wwwcvs.mitgcm.org/viewvc/MITgcm/MITgcm_contrib/high_res_cube/matlab-grid-generator/
> 
> There may be newer versions available somewhere but this is the code that Chris Hill and I used to generate the cs510 grid,
> "It Was Twenty Years Ago Today"!
> 
> Cheers, D.
> 
> > On Feb 8, 2025, at 8:03?PM, Jean-Michel Campin jmc at mit.edu wrote:
> > 
> > Hi Flynn,
> > 
> > I don't remember where the code to generate cubed-sphere grid is, and others might be able
> > to provide more useful information for this.
> > 
> > Now I have a set of cs-96 grid (about 1.degre resolution) that I was using,
> > and put a tar (+ gzip) file there:
> > https://stuff.mit.edu/~jm_c/bin_files/cs96_dxC3_dXYa.tar.gz
> > Normally, you should be able to get this file, if this resolution fits your need.
> > 
> > Cheers,
> > Jean-Michel
> > 
> > On Fri, Feb 07, 2025 at 04:47:47PM +0000, Flynn Ames wrote:
> > 
> > > Dear MITgcm people,
> > > 
> > > Hello - I'm using the MITgcm in its global, cubed-sphere configuration, currently with a cs32 grid (32x32 points for each cube face).
> > > I'd like to perform some sensitivity tests to a higher resolution, e.g., with a cs64 grid.
> > > 
> > > However, I haven't been able to find grid files with a resolution higher than cs32 (despite papers existing that have used a cs64 configuration etc.).
> > > I would attempt to make these files myself, although I'm unsure how I would go about doing this.
> > > 
> > > I'm hoping to ask: does anyone know of where I could find cubed sphere grid files with a higher resolution than cs32? Or if there is a utility I can use to create the grid files myself?
> > > 
> > > Thanks in advance!
> > > Flynn
> > 
> > > _______________________________________________
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