# HadGEM3-GC5 ARCHER2 suites

**URL:** <https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061>\
**Category:** Rose/Cylc and FCM\
**Tags:** ARCHER2\
**Created:** [20 April 2026 08:04 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061 "2026-04-20T08:04:15Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![tarkanbilge](https://avatars.discourse-cdn.com/v4/letter/t/258eb7/32.png) [@tarkanbilge](https://cms-helpdesk.ncas.ac.uk/u/tarkanbilge)\
**Post date:** [20 April 2026 08:04 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061/1 "2026-04-20T08:04:15Z")

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Good morning,

I was wondering if anyone has created picontrol/historical suites of HadGEM3-GC5 with CMIP6 forcing on ARCHER2?

I have been working with u-cy010 (ORCA025 N216, year-2000 forcing) which Ros ported, but I also see that there are two other suites which also appear to be versions of HadGEM3-GC5.

u-da412  
u-dj927

Is anyone aware of the differences between these suites?

Best wishes,  
Tarkan

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**Author:** ![jonnyhtw](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/jonnyhtw/32/548_2.png) [@jonnyhtw](https://cms-helpdesk.ncas.ac.uk/u/jonnyhtw)\
**Post date:** [21 April 2026 11:50 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061/2 "2026-04-21T11:50:24Z")

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Hi Tarkan.

I’m not familiar with these exact workflows but a good way of finding out some top-level information about each one (owner, brief description, etc) can be found in the `rose-suite.info` file in each of simulations’ root directories in, e.g., `$HOME/roses/u-cy010`. I’ve attached a screengrab of the differences between each of these files for the three workflows you mention using `vimdiff`.

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/67b59bb2a60c441e88a4e67db05772114793b77e.png)

In summary they appear to have some non-trivial pairwise differences such as in their ocean resolutions and Cylc versions.

You can also browse the NCAS standard configuration pages [here](https://cms.ncas.ac.uk/unified-model/configurations/).

Cheers.

Jonny

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**Author:** ![RosalynHatcher](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/rosalynhatcher/32/11_2.png) [@RosalynHatcher](https://cms-helpdesk.ncas.ac.uk/u/RosalynHatcher)\
**Post date:** [21 April 2026 13:03 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061/3 "2026-04-21T13:03:09Z")

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Hi Tarkan,

Further to what Jonny has said:

u-da412 is the Met Office N216 ORCA025 present day trunk job, further details can be found here: [https://code.metoffice.gov.uk/trac/gmed/wiki/GADocumentation/GAJobs/GCDev/GCDocumentation/u-da412](https://code.metoffice.gov.uk/trac/gmed/wiki/GADocumentation/GAJobs/GCDev/GCDocumentation/u-da412)

u-dj927 as can be seen above is PI and was originally from Till Kuhlbrodt which Grenville took and ported to ARCHER2 and upgraded to 13.3. I don’t know what the originality of the job is without backtracing which you can do using the `rose-suite.info` files. Easiest done on MOSRS where you can just click through.

Cheers,  
Ros

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**Author:** ![tarkanbilge](https://avatars.discourse-cdn.com/v4/letter/t/258eb7/32.png) [@tarkanbilge](https://cms-helpdesk.ncas.ac.uk/u/tarkanbilge)\
**Post date:** [29 April 2026 14:57 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061/4 "2026-04-29T14:57:33Z")

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Hi Jonny,

Thanks for this information! That’s a useful page RE configurations, I will have a dig around and see what I can find there.

Cheers,  
Tarkan

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<div class="post-metadata">

**Author:** ![tarkanbilge](https://avatars.discourse-cdn.com/v4/letter/t/258eb7/32.png) [@tarkanbilge](https://cms-helpdesk.ncas.ac.uk/u/tarkanbilge)\
**Post date:** [29 April 2026 15:10 UTC](https://cms-helpdesk.ncas.ac.uk/t/hadgem3-gc5-archer2-suites/2061/5 "2026-04-29T15:10:15Z")

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Hi Ros,

Thanks, I’ll trace it back as you suggest! This is perhaps a bit of a naive question, but is there any documentation on how to set up a picontrol and historical from a constant year-2000 forced suite. I can see that there are CMIP ancils on ARCHER2 (/work/y07/shared/umshared/cmip6/ancils/) so I guess in principle it’s just a case of pointing to the right files?

Cheers,  
Tarkan