[MITgcm-support] How to set inclined open boundaries
Martin Losch
Martin.Losch at awi.de
Wed Dec 18 10:46:35 EST 2024
Hi Fanglou,
if you still want to use the yellow dashed domain, you’ll have to use `usingCurvilinearGrid = .TRUE.,` and provide the grid parameters in a very specific format yourself. The OBCs E,W,N,S then do not correspond to geographical directions but grid directions ( right, left, upper, lower) and verlocities will have to be rotated into the grid direction before putting them into boundary files. There are a few examples that use this kind of configuration.
e.g. https://github.com/MITgcm-contrib/arctic/tree/master/cs_36km uses
#define OLD_GRID_IO in CPP_OPTIONS.h which requires that the grid files are available als LONC.bin, etc. see the readme.txt
Martin
> On 18. Dec 2024, at 15:31, Matthew Mazloff <mmazloff at ucsd.edu> wrote:
>
> Hello
>
> With the exch2 package land tiles are not included in the run, so I recommend not rotating the domain.
> Are you using exch2 - do you need guidance on setting that up?
>
> Matt
>
>
>> On Dec 18, 2024, at 3:01 AM, Fanglou Liao <fanglou.liao at unswalumni.com <mailto:fanglou.liao at unswalumni.com>> wrote:
>>
>> Dear MITgcm support
>>
>> I am a new user of MITgcm, and is very interested in developing my own model with MITgcm. I have a basic knowledge on how to build a model covering the domain denoted by the red box (attached), however, I do not know how to build a model like the yellow dash box. For the yellow dash box, the open boundaries are inclined, which confused me on how to set the open boundary conditions, ect.
>>
>>
>> Best,
>>
>> FL
>>
>> <model_domain.png>_______________________________________________
>> MITgcm-support mailing list
>> MITgcm-support at mitgcm.org <mailto:MITgcm-support at mitgcm.org>
>> https://urldefense.com/v3/__http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support__;!!Mih3wA!GzzRQ7b2r55RwUdafM6Q-PTZOkVQYkDmFyxgTCbORInSft2kkZKZjsXdjN1PAGrkOU-BDtDwFmpV5sqck3MzsrCn5Nk$
>
> _______________________________________________
> MITgcm-support mailing list
> MITgcm-support at mitgcm.org <mailto:MITgcm-support at mitgcm.org>
> http://mailman.mitgcm.org/mailman/listinfo/mitgcm-support
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.mitgcm.org/pipermail/mitgcm-support/attachments/20241218/735423d2/attachment-0001.html>
More information about the MITgcm-support
mailing list