# Priorities for large MSU experiments

**URL:** <https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123>\
**Category:** Workshops\
**Tags:** cosima, cosima-workshop-2022, experiments, ocean-bgc\
**Created:** [8 November 2022 23:49 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123 "2022-11-08T23:49:06Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:49 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/1 "2022-11-08T23:49:06Z")

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Copying the google doc here so we can continue the discussion started at the [COSIMA2022 workshop](http://cosima.org.au/index.php/meetings/cosima2022/).

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Starter questions:

1. What are your dream model runs for next year? In 3 years? In 10 years?
2. Paleo vs. high-resolution
3. Longer BGC runs? e.g. RYF with BGC
4. High-res regional vs global?
5. Coupled high-res ACCESS-OM-01 simulations with UM atmosphere as per ESM1.5.
6. ACCESS-OM3 - do we want to do IAF cycles as for OM2?
7. Waves and tides?
8. How much of the saved data is unused? Should we track this?
9. Are there variables or time frequencies that would be really useful to have output for?

I’ll add the ideas we had as separate posts.

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:52 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/2 "2022-11-08T23:52:43Z")

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ACCESS-OM2-01 0.1° RYF with BGC - long spinup

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:52 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/3 "2022-11-08T23:52:56Z")

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1000yr ACCESS-OM2-025 BGC IAF spinup - Matt C’s accelerated adjustment?

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:53 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/4 "2022-11-08T23:53:42Z")

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MOM6 with COBALT biogeochemistry?

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:54 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/5 "2022-11-08T23:54:06Z")

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MOM6 experiments at high resolution to tweak vertical coords etc and confirm performance/realism - test in regional configs?

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:54 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/6 "2022-11-08T23:54:46Z")

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ERA5 forcing in ACCESS-OM2

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:55 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/7 "2022-11-08T23:55:18Z")

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ACCESS-OM2-01 IAF cycle with meltwater perturbation as basal melt

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:55 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/8 "2022-11-08T23:55:43Z")

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MOM6 Panantarctic + ice cavities at 1/20deg

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:56 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/9 "2022-11-08T23:56:07Z")

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Coupled high-res ACCESS-OM-01 simulations with UM atmosphere as per ESM1.5

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<div class="post-metadata">

**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:56 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/10 "2022-11-08T23:56:48Z")

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Ryan commented: Is the (international) ocean-only community going to stick with OMIP-style IAF cycles? Or would there be a case to transition to a different protocol (e.g. Huguenin et al. 2022, [https://www.nature.com/articles/s41467-022-32540-5](https://www.google.com/url?q=https://www.nature.com/articles/s41467-022-32540-5&sa=D&source=docs&ust=1667954629760171&usg=AOvVaw2q00W9A4xOtklh0nMrCMA8))?

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<div class="post-metadata">

**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [8 November 2022 23:57 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/11 "2022-11-08T23:57:54Z")

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Experiments with different sea level, e.g. RYF with LGM sea level (120m lower) at high or low resolution? Or higher sea level?

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<div class="post-metadata">

**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [10 November 2022 06:30 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/12 "2022-11-10T06:30:07Z")

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here’s an example of a 0.1° paleo experiment with late-Eocene topography - check out the movie: [https://doi.org/10.1029/2021PA004405](https://doi.org/10.1029/2021PA004405)

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<div class="post-metadata">

**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:** [11 November 2022 03:26 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/13 "2022-11-11T03:26:11Z")

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Do you want people to thumbs up the ones they want to indicate their preference?

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<div class="post-metadata">

**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [14 November 2022 00:32 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/14 "2022-11-14T00:32:26Z")

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Sure. Also is there a way to have threaded comments on each of these suggestions? That’s the other reason I split them up.

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<div class="post-metadata">

**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:** [14 November 2022 03:20 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/15 "2022-11-14T03:20:58Z")

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Nope. Discourse, by design, [does not do threaded replies](https://community.lsst.org/t/understanding-and-using-discourses-flat-threading/150). See [this example of it action](https://meta.discourse.org/t/threaded-comments-when-using-discourse-for-website-comments/68426/5).

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**Author:** ![rmholmes](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/rmholmes/32/117_2.png) [@rmholmes](https://forum.access-hive.org.au/u/rmholmes)\
**Post date:** [16 November 2022 06:07 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/16 "2022-11-16T06:07:19Z")

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> [@aekiss](#):
>
> How much of the saved data is unused? Should we track this?

I think this is a key issue that we should discuss more. When do we delete data from old experiments on the common `/g/data` drives (that aren’t published elsewhere as part of publications)?

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**Author:** ![adele-morrison](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/adele-morrison/32/90_2.png) [@adele-morrison](https://forum.access-hive.org.au/u/adele-morrison)\
**Post date:** [16 November 2022 08:05 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/17 "2022-11-16T08:05:42Z")

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Agreed this is good to think about. Also useful to see if there are diagnostics that we currently save as standard but are never or only rarely used.

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [16 November 2022 22:31 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/18 "2022-11-16T22:31:40Z")

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We had some discussion on tracking which files are actually used here: [Track how often files are accessed? · Issue #231 · COSIMA/cosima-cookbook · GitHub](https://github.com/COSIMA/cosima-cookbook/issues/231)  
I think we need something like this if we are going to have a data life cycle where data eventually gets deleted / shifted to tape.

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<div class="post-metadata">

**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:** [16 November 2022 23:24 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/19 "2022-11-16T23:24:46Z")

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Potentially related: @dale.roberts has configured the analytics database such that it might be suitable for this use case

> [@Grafana database cleanup](https://forum.access-hive.org.au/t/grafana-database-cleanup/84/2):
>
> Sounds brilliant @dale.roberts Designing away the requirement for ssh keys is a great idea, making the whole process much more robust. What do you mean by “analytics at a user-level”? Adding hooks to run scripts/tools to report PBS job analytics for personal or systemic use? Logging conda package loads, data access through tools like clef? That would be awesome! The other way works too. The DB could be used as a source of data for CLI tools. Grafana is great, but sometimes CLI is nice, and a…

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**Author:** ![aekiss](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aekiss/32/46_2.png) [@aekiss](https://forum.access-hive.org.au/u/aekiss)\
**Post date:** [16 November 2022 23:55 UTC](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123/20 "2022-11-16T23:55:31Z")

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OK thanks. So if we reply to (or quote) specific posts Discourse will link them.

[Next page](https://forum.access-hive.org.au/t/priorities-for-large-msu-experiments/123.md?page=2)
