Merge pull request #1465 from cacraigucar/cam_lbc_file_update

cam6_4_140: Update LBC file for CAM7 use_cases

Author: cacraigucar

.gitmodules

@@ -138,7 +138,7 @@ fxDONOTUSEurl = https://github.com/ESMCI/ccs_config_cesm.git
 [submodule "cime"]
 path = cime
 url = https://github.com/ESMCI/cime
-fxtag = cime6.1.144
+fxtag = cime6.1.145
 fxrequired = ToplevelRequired
 fxDONOTUSEurl = https://github.com/ESMCI/cime
 

bld/namelist_files/use_cases/1850_cam_lt.xml

@@ -7,7 +7,7 @@
 <solar_data_type>    FIXED            </solar_data_type>
 
 <!-- LBC Files : -->
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_cycle_yr>1850</flbc_cycle_yr>
 <flbc_type>'CYCLICAL'</flbc_type>
 <flbc_list>'CO2','CH4','N2O','CFC11','CFC12','CFC11eq'</flbc_list>

bld/namelist_files/use_cases/1850_cam_mt.xml

@@ -7,7 +7,7 @@
 <solar_data_type>    FIXED            </solar_data_type>
 
 <!-- LBC Files : -->
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_cycle_yr>1850</flbc_cycle_yr>
 <flbc_type>'CYCLICAL'</flbc_type>
 <flbc_list>'CO2','CH4','N2O','CFC11','CFC12','CFC11eq'</flbc_list>

bld/namelist_files/use_cases/hist_cam_lt.xml

@@ -7,7 +7,7 @@
 <solar_irrad_data_file>atm/cam/solar/SolarForcingCMIP7-4.6_18491230-20240101_sumEPP_c20250630.nc</solar_irrad_data_file>
 
 <!-- LBC Files -->
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_type>'SERIAL'</flbc_type>
 <flbc_list>'CO2','CH4','N2O','CFC11','CFC12','CFC11eq'</flbc_list>
 

bld/namelist_files/use_cases/hist_cam_mt.xml

@@ -7,7 +7,7 @@
 <solar_irrad_data_file>atm/cam/solar/SolarForcingCMIP7-4.6_18491230-20240101_sumEPP_c20250630.nc</solar_irrad_data_file>
 
 <!-- LBC Files -->
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_type>'SERIAL'</flbc_type>
 <flbc_list>'CO2','CH4','N2O','CFC11','CFC12','CFC11eq'</flbc_list>
 

bld/namelist_files/use_cases/waccm_ma_hist_cam7.xml

@@ -22,7 +22,7 @@
 
 <!-- LBC, UBC Files -->
 <flbc_type>SERIAL</flbc_type>
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_list>
  'CCL4', 'CF2CLBR', 'CF3BR', 'CFC11', 'CFC113', 'CFC12', 'CH3BR', 'CH3CCL3', 'CH3CL', 'CH4', 'CO2', 'H2',
  'HCFC22', 'N2O', 'CFC114', 'CFC115', 'HCFC141B', 'HCFC142B', 'CH2BR2', 'CHBR3', 'H2402', 'OCS', 'CFC11eq'

bld/namelist_files/use_cases/waccm_sc_hist_cam7.xml

@@ -18,7 +18,7 @@
 
 <!-- LBC, UBC Files -->
 <flbc_type>SERIAL</flbc_type>
-<flbc_file>atm/waccm/lb/LBC_17500116-20150116_CMIP6_0p5degLat_c180905.nc</flbc_file>
+<flbc_file>atm/waccm/lb/CMIP7/LBC_17500116-20221216_CMIP7_0p5degLat_c250326.nc</flbc_file>
 <flbc_list>'CO2','CH4','N2O','CFC11','CFC12','CFC11eq'</flbc_list>
 
 <!-- upper atmos forcings -->

cime

@@ -1,6 +1,80 @@
 
 ===============================================================
 
+Tag name: cam6_4_140
+Originator(s): cacraigucar, hannay
+Date: Dec 29, 2025
+One-line Summary: Update LBC file for CAM7 use_cases
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1465
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+  - Add CMIP7 LBC file as default:  https://github.com/ESCOMP/CAM/issues/1463
+
+Describe any changes made to build system: N/A
+
+Describe any changes made to the namelist: N/A
+
+List any changes to the defaults for the boundary datasets: N/A
+
+Describe any substantial timing or memory changes: N/A
+
+Code reviewed by: fvitt
+
+List all files eliminated: N/A
+
+List all files added and what they do: N/A
+
+List all existing files that have been modified, and describe the changes:
+M       bld/namelist_files/use_cases/1850_cam_lt.xml
+M       bld/namelist_files/use_cases/1850_cam_mt.xml
+M       bld/namelist_files/use_cases/hist_cam_lt.xml
+M       bld/namelist_files/use_cases/hist_cam_mt.xml
+M       bld/namelist_files/use_cases/waccm_ma_hist_cam7.xml
+M       bld/namelist_files/use_cases/waccm_sc_hist_cam7.xml
+            - update the LBC file used in CAM7 runs
+
+M       .gitmodules
+M       cime
+            - update cime to get the new inputdata location for wget
+
+If there were any failures reported from running test_driver.sh on any test
+platform, and checkin with these failures has been OK'd by the gatekeeper,
+then copy the lines from the td.*.status files for the failed tests to the
+appropriate machine below.  All failed tests must be justified.
+
+derecho/intel/aux_cam:
+  ERC_D_Ln9.mpasa120_mpasa120.FHISTC_LTso.derecho_intel.cam-outfrq9s_mpasa120 (Overall: DIFF) details:
+  ERC_D_Ln9.ne30pg3_ne30pg3_mt232.F1850C_LTso.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+  ERI_D_Ln18.ne30pg3_ne30pg3_mt232.FHISTC_LTso.derecho_intel.cam-outfrq3s_eri (Overall: DIFF) details:
+  ERP_D_Ln9.ne30pg3_ne30pg3_mt232.F1850C_MTso.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+  ERP_Ld3.ne16pg3_ne16pg3_mg17.FHISTC_WAt1ma.derecho_intel.cam-reduced_hist1d (Overall: DIFF) details:
+  ERP_Ln9.ne30pg3_ne30pg3_mg17.FHISTC_WAma.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+  ERR_Ln9.ne16pg3_ne16pg3_mt232.FHISTC_LTso.derecho_intel.cam-outfrq9s_bwic (Overall: DIFF) details:
+  ERS_Ln9.ne30pg3_ne30pg3_mg17.FHISTC_WXma.derecho_intel.cam-outfrq9s_ctem (Overall: DIFF) details:
+  SMS_C2_D_Ln9.ne16pg3_ne16pg3_mg17.FHISTC_WXma.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+  SMS_D_Ln9.ne30pg3_ne30pg3_mt232.FHISTC_MTso.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+     - Answer changes for CAM7 runs due to new LBC file
+
+  SMS_D_Ln9_P1536x1.ne0CONUSne30x8_ne0CONUSne30x8_mt12.FCHIST.derecho_intel.cam-outfrq9s (Overall: PASS) details:
+     - This test appears to no longer fail after the last derecho downtime.  Will no longer track this failure in the ChangeLog.
+
+derecho/nvhpc/aux_cam: (not run as nothing has changed with the file system)
+
+izumi/nag/aux_cam:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_nag.cam-cosp_rad_diags (Overall: DIFF) details:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_nag.cam-outfrq9s_nochem (Overall: DIFF) details:
+     - Answer changes for CAM7 runs due to new LBC file
+
+izumi/gnu/aux_cam:
+  ERC_D_Ln9.mpasa480_mpasa480_mt232.FHISTC_LTso.izumi_gnu.cam-outfrq9s_mpasa480 (Overall: DIFF) details:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_gnu.cam-sat_lcltod (Overall: DIFF) details:
+  SMS_D_Ln3.ne3pg3_ne3pg3_mt232.PC7.izumi_gnu.cam-pc7_ne3pg3 (Overall: DIFF) details:
+     - Answer changes for CAM7 runs due to new LBC file
+
+
+===============================================================
+===============================================================
+
 Tag name: cam6_4_139
 Originator(s): cacraigucar, kuanchihwang, gold2718, jedwards4b
 Date: Dec 24, 2025