# Curvilinear Arakawa C-grid in CICE

**URL:** <https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973>\
**Category:** Sea Ice\
**Tags:** python, cosima, cice6\
**Created:** [9 July 2023 22:42 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973 "2023-07-09T22:42:40Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![dpath2o](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dpath2o/32/1093_2.png) [@dpath2o](https://forum.access-hive.org.au/u/dpath2o)\
**Post date:** [9 July 2023 22:42 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973/1 "2023-07-09T22:42:40Z")

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Hi,

Curious to know if anyone has generated a global curvilinear (tripolar) Arakawa c-grid that can be used in CICE? NetCDF grid, kmt (land/ocean mask) and bathymetry files are what I am looking to create, I’m currently reading about xgcm (python library), but if I do not have to re-invent a wheel here then that would be great.

Cheers,  
Dan

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**Author:** ![dougiesquire](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dougiesquire/32/16_2.png) [@dougiesquire](https://forum.access-hive.org.au/u/dougiesquire)\
**Post date:** [14 September 2023 04:27 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973/2 "2023-09-14T04:27:23Z")

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@dpath2o I’m sorry this post has sat here so long without a response. I just stumbled across [this repo](https://github.com/NCAR/CESM_MOM6_AQUA/tree/90690fd726123c717c55a4622de70d2243d1d4d7/Grid_Topo_Generation) which, among other useful things, includes instructions/scripts for generating CICE horizontal grid and topography files.

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**Author:** ![sofarrell](https://avatars.discourse-cdn.com/v4/letter/s/ea5d25/32.png) [@sofarrell](https://forum.access-hive.org.au/u/sofarrell)\
**Post date:** [14 September 2023 07:34 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973/3 "2023-09-14T07:34:31Z")

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Don’t worry @dougiesquire as one of @dpath2o supervisors I told him to wait until @aekiss had set up the C grid for the ACCESS-OM3 model, he had enough over things to be focussing on already in his existing runs. But thanks for finding the relevant CESM pages on grid generation.

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**Author:** ![dpath2o](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dpath2o/32/1093_2.png) [@dpath2o](https://forum.access-hive.org.au/u/dpath2o)\
**Post date:** [18 September 2023 07:31 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973/4 "2023-09-18T07:31:37Z")

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Thanks @dougiesquire . I’d not come across that, but as @sofarrell points out, my pursuit has been diverted elsewhere for the moment. An interest for later though! Thanks again 🙂

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**Author:** ![dougiesquire](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dougiesquire/32/16_2.png) [@dougiesquire](https://forum.access-hive.org.au/u/dougiesquire)\
**Post date:** [19 September 2023 00:58 UTC](https://forum.access-hive.org.au/t/curvilinear-arakawa-c-grid-in-cice/973/5 "2023-09-19T00:58:38Z")

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> [@sofarrell](#):
>
> wait until @aekiss had set up the C grid for the ACCESS-OM3 model

FYI, we are now using in ACCESS-OM3 a version of CICE6 that includes the C-grid implementation and we are working on configurations that use this.