# Coordinates.nc file for DOMAINcfg

**URL:** <https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432>\
**Category:** v4.2.x\
**Created:** [30 January 2023 01:25 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432 "2023-01-30T01:25:40Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rchman](https://avatars.discourse-cdn.com/v4/letter/r/838e76/32.png) [@rchman](https://nemo-ocean.discourse.group/u/rchman)\
**Post date:** [30 January 2023 01:25 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432/1 "2023-01-30T01:25:40Z")

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Hello, I’m trying to create a new global ORCA1 grid with different vertical levels via the DOMAINcfg tool of NEMO V4.2.

The DOAMINcfg tool needs a predefined horizontal grid that has a specific name “coordinates.nc”. But, no matter how much I search on the internet, I cannot find the predefined tripolar grid file. I can get only the ORCA2 grid because test cases provide that resolution grid.

How can I get the predefined ORCA family grid like the ORCA025, ORCA1, ORCA05, and ORCA2?

Also, how can I create a mesh mask grid? Is it possible to create the mask file by using the DOMAINcfg tool?

Thanks.

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**Author:** ![Antoine\_Barthelemy](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@Antoine\_Barthelemy](https://nemo-ocean.discourse.group/u/Antoine_Barthelemy)\
**Post date:** [20 February 2023 16:10 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432/2 "2023-02-20T16:10:56Z")

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Hello,

I don’t know if your questions is still open, but if yes, I’d be happy to share the files that we use in our department for eORCA1 simulations.

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**Author:** ![rchman](https://avatars.discourse-cdn.com/v4/letter/r/838e76/32.png) [@rchman](https://nemo-ocean.discourse.group/u/rchman)\
**Post date:** [1 March 2023 07:40 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432/3 "2023-03-01T07:40:26Z")

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I don’t get any grid files yet. If you share the files it really thanks to me!

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**Author:** ![xzhahahah](https://avatars.discourse-cdn.com/v4/letter/x/c4cdca/32.png) [@xzhahahah](https://nemo-ocean.discourse.group/u/xzhahahah)\
**Post date:** [11 April 2023 02:47 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432/5 "2023-04-11T02:47:48Z")

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Dear Antoine,

Is it possible to share this grid file with me too? I want to rotate ocean velocity from CMIP6 but I cannot find such file online anywhere… (I can only find OCRA025…)

Many thanks :)))

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**Author:** ![farshiddaryabor7](https://avatars.discourse-cdn.com/v4/letter/f/58956e/32.png) [@farshiddaryabor7](https://nemo-ocean.discourse.group/u/farshiddaryabor7)\
**Post date:** [16 June 2023 14:40 UTC](https://nemo-ocean.discourse.group/t/coordinates-nc-file-for-domaincfg/432/6 "2023-06-16T14:40:19Z")

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Dear Antoine, can you share with me too? Thanks