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Enable to read IMS data in ascii or netcdf format #4387

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jiaruidong2017 wants to merge 7 commits into from
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Enable to read IMS data in ascii or netcdf format #4387

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32b6c40
Enable to read IMS data in ascii or netcdf format
jiaruidong2017 Dec 27, 2025
cff02df
Enable to process the input IMS data in NetCDF format for snow ensemble
jiaruidong2017 Dec 28, 2025
67c0493
Manually define the IMS input suffix
jiaruidong2017 Dec 30, 2025
0417ca6
fix pynorm error
jiaruidong2017 Dec 30, 2025
ad44740
Manually define the IMS input suffix for snow ensemble analysis
jiaruidong2017 Dec 30, 2025
91b9e83
Merge branch 'develop' into feature/ims_nc
jiaruidong2017 Dec 31, 2025
5c60f4c
Update the GDASApp repo to include required changes
jiaruidong2017 Jan 2, 2026
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1 change: 1 addition & 0 deletions dev/parm/config/gfs/config.snowanl.j2
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ export APPLY_INCR_NML_TMPL="${PARMgfs}/gdas/snow/apply_incr_nml.j2"

export TASK_CONFIG_YAML="${PARMgfs}/gdas/snow/snow_det_config.yaml.j2"
export OBS_LIST_YAML="${PARMgfs}/gdas/snow/snow_obs_list.yaml.j2"
export ims_scf_obs_suffix="asc" # asc-ascii; nc-netcdf

export PREP_SNOCVR_SNOMAD_YAML="${PARMgfs}/gdas/snow/prep/prep_snocvr_snomad.yaml.j2"
export OBSBUILDER="${USHgfs}/bufr_snocvr_snomad.py"
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11 changes: 5 additions & 6 deletions ush/python/pygfs/task/snow_analysis.py
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Expand Up @@ -50,12 +50,11 @@ def __init__(self, config: Dict[str, Any]):
_res = int(self.task_config['CASE'][1:])

# if 00z, do SCF preprocessing
_ims_file = os.path.join(self.task_config.COMIN_OBS, f'{self.task_config.OPREFIX}imssnow96.asc')
logger.info(f"Checking for IMS file: {_ims_file}")
if self.task_config.cyc == 0 and os.path.exists(_ims_file):
_DO_IMS_SCF = True
else:
_DO_IMS_SCF = False
_ims_file = os.path.join(
self.task_config.COMIN_OBS,
f'{self.task_config.OPREFIX}imssnow96.{self.task_config.ims_scf_obs_suffix}'
)
_DO_IMS_SCF = (self.task_config.cyc == 0 and os.path.exists(_ims_file))

# Extend task_config with variables repeatedly used across this class
self.task_config.update(AttrDict(
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11 changes: 5 additions & 6 deletions ush/python/pygfs/task/snowens_analysis.py
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Expand Up @@ -53,12 +53,11 @@ def __init__(self, config: Dict[str, Any]):
_res = int(self.task_config['CASE_ENS'][1:])

# if 00z, do SCF preprocessing
_ims_file = os.path.join(self.task_config.COMIN_OBS, f'{self.task_config.OPREFIX}imssnow96.asc')
logger.info(f"Checking for IMS file: {_ims_file}")
if self.task_config.cyc == 0 and os.path.exists(_ims_file):
_DO_IMS_SCF = True
else:
_DO_IMS_SCF = False
_ims_file = os.path.join(
self.task_config.COMIN_OBS,
f'{self.task_config.OPREFIX}imssnow96.{self.task_config.ims_scf_obs_suffix}'
)
_DO_IMS_SCF = (self.task_config.cyc == 0 and os.path.exists(_ims_file))

# Extend task_config with variables repeatedly used across this class
self.task_config.update(AttrDict(
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