[MITgcm-support] gendata.m

[Guiting Song]

Hi, Dimitris,

Thank you so much for the valuable information. Really appreciated for that.

Best regards,
Tony



On Fri, Nov 27, 2015 at 2:37 AM, Menemenlis, Dimitris (329C) <
Dimitris.Menemenlis at jpl.nasa.gov> wrote:

> Also there’s a couple of ~1/4-deg-ish configurations that are ready-ish to
> go,
> that you can use as templates.
>
> A very old one on a latitude-longitude grid, that stops at ~80N, i.e., no
> Arctic Ocean:
> http://mitgcm.org/viewvc/MITgcm/MITgcm_contrib/quarter_degree_global/
>
> A more recent one on a so-called cube sphere grid:
> http://mitgcm.org/viewvc/MITgcm/MITgcm_contrib/high_res_cube/
>
> And state-of-the-art-ish on lat-lon-cap grid:
> http://mitgcm.org/viewvc/MITgcm/MITgcm_contrib/llc_hires/llc_270/
>
> > On Nov 26, 2015, at 1:27 AM, Martin Losch <Martin.Losch at awi.de> wrote:
> >
> > Hi Tony,
> >
> > I am afraid that you will have to do this on your own, and it’s pretty
> obvious:
> > - Find databases for bathymetry and forcing that you like or think are
> appropriate
> > - interpolate (at least bathymetry) to your model grid.
> > - for bathymetry you have to make sure that you domain is “sensible”,
> i.e. you don’t have bays without a connection to the ocean, etc. There’s a
> recent paper by Alistair Adcroft (2013, Ocean Modelling,
> doi:10.1016/j.ocemod.2013.03.002.), where he discusses some aspects of this.
> > - for the forcing you can use the interpolation capabilities of the
> exf-package, there’s an example in “global_with_exf”. I suggest to study
> the exf-package a little, because it makes importing forcing much simpler
> (in most cases) <
> http://mitgcm.org/public/r2_manual/latest/online_documents/node246.html>
> > - you can see how you generate the input format in matlab in many
> “gendata.m” file in the verification experiment (cd verification && ls
> */input*/gendata.m)
> >
> > Martin
> >
> >> On 26 Nov 2015, at 02:37, Guiting Song <guitingsong at gmail.com> wrote:
> >>
> >> Hi, Martin,
> >>
> >> Many thanks for your reply. Then, could you suggest how to generate the
> input data for a realistic domain especially for a global run at about 0.25
> degree resolution? I am a new player for MITgcm, I search for a long time
> and study your mannual. But I am still not sure how to generate the input
> data such as bathymatry, wind forcing and climatology for MITgcm.
> >>
> >>
> >>
> >> Best regards,
> >> Tony
> >>
> >>
> >>
> >>
> >> On Wed, Nov 25, 2015 at 6:45 PM, Martin Losch <Martin.Losch at awi.de>
> wrote:
> >> Hi Tony,
> >>
> >> that’s probably an error in the documentation, an erroneous copy and
> paste from a different experiment description. The text should just read:
> >>
> >> "The input/bathymetry.bin file specifies a two-dimensional (x,y) map of
> depth values. The file contains a raw binary stream of data that is
> enumerated in the same way as standard MITgcm two-dimensional, horizontal
> arrays.”
> >>
> >> There is no “gendata.m” associated with this experiement (because it is
> quite involved to generate the input data for a realistic domain). Sorry
> about that, I’ll fix the documentation.
> >>
> >> M.
> >>
> >>
> >>
> >>
> >>
> >>
> >>> On 25 Nov 2015, at 08:33, Guiting Song <guitingsong at gmail.com> wrote:
> >>>
> >>> In the user manual section of 3.12 Global Ocean Simulation at 4
> Resolution, mentioned that The included matlab program input/gendata.m
> gives a complete code for creating the input/topog.box file.
> >>>
> >>> However, from my download version, there is no such a file, is anybody
> willing to share me this file?
> >>>
> >>> Best regards,
> >>> Tony
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