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Separate use of initial increment/perturbation file from REPLAY/+03 ICs #3119

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Description

This PR is a continuation of the previous SFS PR. The use of initial perturbations/increments for ensemble long forecasts (e.g., SFS and GEFS) was missing from the previous PR because this option was included with the REPLAY_IC option.

In this PR, the REPLAY_IC option is now strictly for the +03 ICs, and the variables USE_ATM_ENS_PERTURB_FILES and USE_OCN_ENS_PERTURB_FILES are used for initialization with the initial perturbation/increment files used for SFS and GEFS reforecasting. This separation will also make it easier to remove the +03 IC optoin.

Type of change

  • Bug fix (fixes something broken)
  • New feature (adds functionality)
  • Maintenance (code refactor, clean-up, new CI test, etc.)

Change characteristics

  • Is this a breaking change (a change in existing functionality)? NO
  • Does this change require a documentation update? NO
  • Does this change require an update to any of the following submodules? NO (If YES, please add a link to any PRs that are pending.)
    • EMC verif-global
    • GDAS
    • GFS-utils
    • GSI
    • GSI-monitor
    • GSI-utils
    • UFS-utils
    • UFS-weather-model
    • wxflow

How has this been tested?

I tested long forecast runs on hercules and multiple CI tests.

Checklist

  • Any dependent changes have been merged and published
  • My code follows the style guidelines of this project
  • I have performed a self-review of my own code
  • I have commented my code, particularly in hard-to-understand areas
  • I have documented my code, including function, input, and output descriptions
  • My changes generate no new warnings
  • New and existing tests pass with my changes
  • This change is covered by an existing CI test or a new one has been added
  • Any new scripts have been added to the .github/CODEOWNERS file with owners
  • I have made corresponding changes to the system documentation if necessary

NeilBarton-NOAA and others added 30 commits July 2, 2024 15:04
Fix a bug in a variable check in the extractvars task where parenthesis in the variable name will prompt a false warning message.
Ice variables are extracted from the history files instead of the product files. This is necessary because there are certain ice variables that are needed that are only available in the history files and not the product files.
Add suggested patches to gefs_replay_ci
Shellcheck disable has been added. Also, f000 is skipped in extractvars for ocn and ice since there are no products for f000 for ocn and ice. This change will remove warning messages.
Comment on lines -15 to -18
cdate="${PDY}${cyc}"
if (( cdate < 2017072000 )); then
export NST_SPINUP=1
fi
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Curious why this is being removed? No longer need?

cdate="${PDY}${cyc}"
if (( cdate < 2017072000 )); then
export NST_SPINUP=1
fi

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We should probably still include NST_SPINUP, but set it to 0.

Suggested change
export NST_SPINUP=0

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4 participants