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Fix GSI B matrix templates to use analysis resolution instead of guess resolution #2044

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Merged
RussTreadon-NOAA merged 6 commits into from
Jan 29, 2026
Merged

Fix GSI B matrix templates to use analysis resolution instead of guess resolution #2044

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0c1281e
Initial plan
Copilot Jan 22, 2026
a71374e
Update GSI B matrix templates to use _anl resolution instead of _ges
Copilot Jan 22, 2026
4bb020c
Merge branch 'develop' into copilot/update-gsi-b-matrix-resolution
CoryMartin-NOAA Jan 22, 2026
80692fb
Merge branch 'develop' into copilot/update-gsi-b-matrix-resolution
RussTreadon-NOAA Jan 27, 2026
bae4ebc
Update GSI B matrix formulas and related config files
Copilot Jan 28, 2026
ecb65c6
replace nc4 suffix with nc for GSIBEC file gsi-coeffs-gfs-global
RussTreadon-NOAA Jan 28, 2026
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4 changes: 2 additions & 2 deletions parm/atm/atm_det_stage_berror_gsibec.yaml.j2
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
- ['{{ HOMEgfs }}/fix/gdas/gsibec/{{ CASE_GSIBEC }}/gfs_gsi_global.nml', '{{ DATA }}/berror']
- ['{{ HOMEgfs }}/fix/gdas/gsibec/{{ CASE_GSIBEC }}/gsi-coeffs-gfs-global.nc4', '{{ DATA }}/berror']
- ['{{ HOMEgfs }}/fix/gdas/gsibec/{{ CASE_ANL }}/gfs_gsi_global.nml', '{{ DATA }}/berror']
- ['{{ HOMEgfs }}/fix/gdas/gsibec/{{ CASE_ANL }}/gsi-coeffs-gfs-global.nc', '{{ DATA }}/berror']
2 changes: 1 addition & 1 deletion parm/atm/atm_obs_list.yaml.j2
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Expand Up @@ -30,7 +30,7 @@ observations:
##- cris-fsr_n20
##- cris-fsr_n21
##- atms_npp
- atms_n20
- radiance_atms_n20
##- gnssro_cosmic2
##- gnssro_spire
##- gnssro_s6
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7 changes: 4 additions & 3 deletions parm/jcb-gdas/model/atmosphere/atmosphere_background_error_hybrid_gsibec_bump.yaml.j2
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Expand Up @@ -6,7 +6,7 @@ components:
saber block name: gsi static covariance
read:
gsi akbk: {{atmosphere_fv3jedi_files_path}}/akbk.nc4
gsi error covariance file: {{atmosphere_gsibec_path}}/gsi-coeffs-gfs-global.nc4
gsi error covariance file: {{atmosphere_gsibec_path}}/gsi-coeffs-gfs-global.nc
gsi berror namelist file: {{atmosphere_gsibec_path}}/gfs_gsi_global.nml
processor layout x direction: {{atmosphere_layout_gsib_x}}
processor layout y direction: {{atmosphere_layout_gsib_y}}
Expand All @@ -17,8 +17,9 @@ components:
function space: StructuredColumns
custom grid matching gsi:
type: gaussian
lats: {{ atmosphere_npy_ges + 1 }}
{% set atmosphere_lons = (atmosphere_npx_ges - 1) * 2 %}
{% set atmosphere_lats = ((atmosphere_npy_anl - 1) * 2) + 2 %}
lats: {{ atmosphere_lats }}
{% set atmosphere_lons = (atmosphere_npx_anl - 1) * 4 %}
lons: {{ atmosphere_lons }}
custom partitioner matching gsi:
bands: {{ atmosphere_layout_gsib_y }}
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7 changes: 4 additions & 3 deletions parm/jcb-gdas/model/atmosphere/atmosphere_background_error_static_gsibec.yaml.j2
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Expand Up @@ -4,7 +4,7 @@ saber central block:
saber block name: gsi static covariance
read:
gsi akbk: {{atmosphere_fv3jedi_files_path}}/akbk.nc4
gsi error covariance file: {{atmosphere_gsibec_path}}/gsi-coeffs-gfs-global.nc4
gsi error covariance file: {{atmosphere_gsibec_path}}/gsi-coeffs-gfs-global.nc
gsi berror namelist file: {{atmosphere_gsibec_path}}/gfs_gsi_global.nml
processor layout x direction: {{atmosphere_layout_gsib_x}}
processor layout y direction: {{atmosphere_layout_gsib_y}}
Expand All @@ -15,8 +15,9 @@ saber outer blocks:
function space: StructuredColumns
custom grid matching gsi:
type: gaussian
lats: {{ atmosphere_npy_ges + 1 }}
{% set atmosphere_lons = (atmosphere_npx_ges - 1) * 2 %}
{% set atmosphere_lats = ((atmosphere_npy_anl - 1) * 2) + 2 %}
lats: {{ atmosphere_lats }}
{% set atmosphere_lons = (atmosphere_npx_anl - 1) * 4 %}
lons: {{ atmosphere_lons }}
custom partitioner matching gsi:
bands: {{ atmosphere_layout_gsib_y }}
Expand Down