Update Hera /scratch1 and /scratch2 paths

[RussTreadon-NOAA]

Description

This PR updates /scratch1 and /scratch2 paths in GDASApp in preparation for the 8/5/2025 decommissioning of these filesets.

Companion PRs

GDASApp PR #1830 updates paths in ush/ufoeval/run_ufo_hofx_test.sh

Issues

Resolves #1831

Automated CI tests to run in Global Workflow

• atm_jjob
• C96C48_ufs_hybatmDA
• C96C48_hybatmsnowDA
• C96_gcafs_cycled
• C48mx500_3DVarAOWCDA
• C48mx500_hybAOWCDA
• C96C48_hybatmDA

[RussTreadon-NOAA]

Convert to draft until we resolve what to do with the following occurrences of /scratch1:

./ush/ufsda/yamltools.py:                'datapath': '/scratch1/NCEPDEV/global/glopara/fix/orog/20220805/C'+str(case)+'/',
./modulefiles/EVA/hera.lua:local pyenvpath = "/scratch1/NCEPDEV/da/python/envs/"

One option for ./ush/ufsda/yamltools.py is to delete it along with the script that calls it, scripts/old/exgdas_global_marine_analysis_prep.py. If we delete scripts/old/exgdas_global_marine_analysis_prep.py, we should consider removing the entire directory scripts/old.

One option for ./modulefiles/EVA/hera.lua is to see if we can use either of the following modules to replace local pyenvpath = "/scratch1/NCEPDEV/da/python/envs/"

py-virtualenv/20.24.5
python-venv/1.0

The above modules are available when GDASApp modulefiles/GDAS/hera.intel.lua is loaded.

[guillaumevernieres]

Thanks @RussTreadon-NOAA

[RussTreadon-NOAA]

Thank you @guillaumevernieres for the approval. Any thoughts on how to handle the scratch2 reference in ./ush/ufsda/yamltools.py? Below is one option

One option for ./ush/ufsda/yamltools.py is to delete it along with the script that calls it, scripts/old/exgdas_global_marine_analysis_prep.py. If we delete scripts/old/exgdas_global_marine_analysis_prep.py, we should consider removing the entire directory scripts/old.

[RussTreadon-NOAA]

Despite two remaining questions, mark this PR as Ready for review.

GDASApp develop at 899848c following the 8/5/2025 Hera maintenance. The scratch1/2 filesets no longer exist.

The GDASApp hera.intel.lua references scratch1/ for CRTM_FIX. The build therefore attempts to download CRTM coefficients and fails. Long term we should be able to load the spack-stack crtm to set CRTM_FIX. This PR changes the CRTM_FIX path to scratch3/.

[RussTreadon-NOAA]

Merge given @guillaumevernieres' approval.

[guillaumevernieres]

Thank you @guillaumevernieres for the approval. Any thoughts on how to handle the scratch2 reference in ./ush/ufsda/yamltools.py? Below is one option

One option for ./ush/ufsda/yamltools.py is to delete it along with the script that calls it, scripts/old/exgdas_global_marine_analysis_prep.py. If we delete scripts/old/exgdas_global_marine_analysis_prep.py, we should consider removing the entire directory scripts/old.

Sorry for the late reply @RussTreadon-NOAA . Deleting sounds good to me.