# AUS2200 vegetation fraction ancil creation issues

**URL:** <https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972>\
**Category:** AUS2200\
**Created:** [27 March 2024 06:20 UTC](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972 "2024-03-27T06:20:38Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![cbengel](https://avatars.discourse-cdn.com/v4/letter/c/ce7236/32.png) [@cbengel](https://forum.access-hive.org.au/u/cbengel)\
**Post date:** [23 October 2024 01:40 UTC](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972/21 "2024-10-23T01:40:31Z")

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Hi @mlipson,

Thanks for your suggestion, @andrewb1 could use it in the interim while we work on the u-dg768 suite.

I can make a generic fix (not tied to any specific resolution) and generate a report (perhaps in the job output) to highlight the problematic points and how they have been handled. The point being that scientists could then look over what has been done and contact us if they want a more bespoke solution.

Would that work?

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**Author:** ![Paul.Gregory](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/paul.gregory/32/2566_2.png) [@Paul.Gregory](https://forum.access-hive.org.au/u/Paul.Gregory)\
**Post date:** [23 October 2024 02:33 UTC](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972/22 "2024-10-23T02:33:50Z")

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Given the BARRA domain has a similar extent and resolution (0.11 degrees), I’m curious how the BoM dealt with these issues.

 ![BARRA-domains-The-dotted-line-represents-the-boundary-of-BARRA-R-while-the-four-smaller](https://us1.discourse-cdn.com/flex020/uploads/access1/original/2X/c/ce81885353b4641ffa50b42f35d17b696af5a231.png)

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**Author:** ![Paul.Gregory](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/paul.gregory/32/2566_2.png) [@Paul.Gregory](https://forum.access-hive.org.au/u/Paul.Gregory)\
**Post date:** [18 November 2024 05:20 UTC](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972/23 "2024-11-18T05:20:44Z")

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Hi all.

I had an excellent talk with @csu (Chun Hsu) from the Bureau today to discuss ancillary generation. Chun Hsu said they had no issues generating ancillaries for any of the BARRA domains. But they used a non-standard ancillary suite.

The ancillary suite used to generate BARRA-R2 is u-ch954.

The ancillary suite used to generate BARRA-C2 is the same one @mlipson is using.

Chun Hsu has shared with me a 15-page Word document outlining all the work they did to get BARRA-R2 ancillaries working.

I have uploaded this document to

> <https://github.com/21centuryweather/UM_configuration_tools/blob/main/Creating%20ancillary%20for%20GA7.docx>

I think that this document, combined with u-ch954, combined with the current regional nesting suite, should give us better confidence going forward to generate hi-resolution nests in arbitrary domains without any ancillary problems.

Chun Hsu has kindly copied all of BARRA-R2’s ancillary data to /scratch/public/chs548/ancil\_barra-r2/

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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:** [19 November 2024 01:13 UTC](https://forum.access-hive.org.au/t/aus2200-vegetation-fraction-ancil-creation-issues/1972/24 "2024-11-19T01:13:36Z")

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> [@Paul.Gregory](#):
>
> /scratch/public/chs548/ancil\_barra-r2/

Not that data in `/scratch/public` is [deleted after 2 weeks](https://opus.nci.org.au/display/Help/Data+Sharing+Suggestions), so grab a copy ASAP if you need it

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