# Compatibility between the ORCA2\_OFF\_v5.0.0.tar.gz input files and the namelist\_cfg for the ORCA2\_OFF\_TRC reference case
**URL:** https://nemo-ocean.discourse.group/t/compatibility-between-the-orca2-off-v5-0-0-tar-gz-input-files-and-the-namelist-cfg-for-the-orca2-off-trc-reference-case/1012
**Category:** Uncategorized
**Created:** [22 April 2026 11:31 UTC](https://nemo-ocean.discourse.group/t/compatibility-between-the-orca2-off-v5-0-0-tar-gz-input-files-and-the-namelist-cfg-for-the-orca2-off-trc-reference-case/1012 "2026-04-22T11:31:58Z")
**Posts on this page:** 2
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### Author:  [@baptiste](https://nemo-ocean.discourse.group/u/baptiste)
#### Post date: [22 April 2026 11:31 UTC](https://nemo-ocean.discourse.group/t/compatibility-between-the-orca2-off-v5-0-0-tar-gz-input-files-and-the-namelist-cfg-for-the-orca2-off-trc-reference-case/1012/1 "2026-04-22T11:31:58Z")
I downloaded [ORCA2\_OFF\_v5.0.0.tar.gz](https://gws-access.jasmin.ac.uk/public/nemo/sette_inputs/r5.0.0/ORCA2_OFF_v5.0.0.tar.gz) from [NEMO SETTE input files delivered through Jasmin](https://gws-access.jasmin.ac.uk/public/nemo/sette_inputs/) . Then, when I use these files for the reference configuration ORCA2\_OFF\_TRC, ./nemo crash with these E R R O R s:
iom\_varid, file: ./dyna\_grid\_W.nc, var: difvsolog not found
iom\_varid, file: ./dyna\_grid\_T.nc, var: mldr10\_1 not found
iom\_varid, file: ./dyna\_grid\_T.nc, var: windsp not found
iom\_varid, file: ./dyna\_grid\_T.nc, var: hdivtr not found
iom\_varid, file: ./dyna\_grid\_T.nc, var: wfob not found
Could someone help me to understand this ones ?
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### Author:  [@sditkovsky](https://nemo-ocean.discourse.group/u/sditkovsky)
#### Post date: [16 July 2026 13:59 UTC](https://nemo-ocean.discourse.group/t/compatibility-between-the-orca2-off-v5-0-0-tar-gz-input-files-and-the-namelist-cfg-for-the-orca2-off-trc-reference-case/1012/2 "2026-07-16T13:59:53Z")
Hello, I’m running into issues with this test case as well. Did you end up finding the appropriate forcing files somewhere?
If not, I can help you understand the issue a bit. In some cases, these variables exist in the forcing files but are named differently. If you cross reference the `&namdta_dyn`section of the `namelist_cfg` file for the ORCA2\_OFF\_PISCES and the ORCA2\_OFF\_TRC case, you can find the correct names. (Note: the ORCA2\_OFF\_PISCES example works pretty smoothly out of the box, so it’s a good place to start)
However, the forcing files for this reference case are missing variables for sn\_div and sn\_empb. If you switch your cpp keys from key\_qco to key\_linssh, then you don’t actually need these variables…
That said, I would like to run the case with key\_qco. So if anyone can point me to a forcing set that has all the necessary variables, that would be amazing!