# Generating the exchange grid for MOM6

**URL:** <https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390>\
**Category:** Ocean\
**Created:** [3 February 2023 00:33 UTC](https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390 "2023-02-03T00:33:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![schmidt-christina](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/schmidt-christina/32/116_2.png) [@schmidt-christina](https://forum.access-hive.org.au/u/schmidt-christina)\
**Post date:** [3 February 2023 00:33 UTC](https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390/1 "2023-02-03T00:33:11Z")

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I am creating exchange grids for a regional panantarctic MOM6 configuration following the steps outlined here [https://github.com/COSIMA/mom6-panan/wiki/Preparing-inputs-for-a-new-configuration](https://github.com/COSIMA/mom6-panan/wiki/Preparing-inputs-for-a-new-configuration)

The output files are generated but the file atmos\_mosaic\_tile1Xocean\_mosaic\_tile1.nc is empty, the other two mosaic files for land/ocean and atm/land have values. Does that have to do with the new ocean\_mask and topography I created or what might be the problem?

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**Author:** ![schmidt-christina](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/schmidt-christina/32/116_2.png) [@schmidt-christina](https://forum.access-hive.org.au/u/schmidt-christina)\
**Post date:** [3 February 2023 01:23 UTC](https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390/2 "2023-02-03T01:23:04Z")

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Problem solved, I used the wrong grid\_spec.nc file. This is an output of `make_quick_mosaic`, not an input as I thought.

panan-005 is now running for the first time with the new bathymetry without crashing in the first two model days.

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**Author:** ![Aidan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aidan/32/42_2.png) [@Aidan](https://forum.access-hive.org.au/u/Aidan)\
**Post date:** [3 February 2023 04:17 UTC](https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390/3 "2023-02-03T04:17:12Z")

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> [@schmidt-christina](#):
>
> Problem solved, I used the wrong grid\_spec.nc file. This is an output of `make_quick_mosaic`, not an input as I thought.

Nice work @schmidt-christina! Your first topic and your first solution in two posts! 🎉

😄

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**Author:** ![navidcy](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/navidcy/32/101_2.png) [@navidcy](https://forum.access-hive.org.au/u/navidcy)\
**Post date:** [3 February 2023 08:16 UTC](https://forum.access-hive.org.au/t/generating-the-exchange-grid-for-mom6/390/4 "2023-02-03T08:16:11Z")

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pan-antarctic running woohoo @schmidt-christina