update changelog

Author: peverwhee

doc/ChangeLog

@@ -1,3 +1,92 @@
+===============================================================
+
+Tag name: cam6_4_111
+Originator(s): JulioTBacmeister, cacraigucar, peverwhee
+Date: August 29, 2025
+One-line Summary: Making blending region consistent with p_top for radiation schemes
+Github PR URL: https://github.com/ESCOMP/CAM/pull/1379
+
+Purpose of changes (include the issue number and title text for each relevant GitHub issue):
+  - Rename p_top_for_rrtmgp to the more generic p_top_for_equil_rad
+  - Move p_top_for_equil_rad to radheat namelist group and read in radheat_readnl
+  - Use p_top_for_equil_rad to set minimum pressure for blending layer in radheat_init
+  - Update stochastic tau PUMAS file path to match new location
+
+Describe any changes made to build system: N/A
+
+Describe any changes made to the namelist:
+M   bld/build-namelist
+M   bld/namelist_files/namelist_defaults_cam.xml
+M   bld/namelist_files/namelist_definition.xml
+- Rename p_top_for_rrtmgp to p_top_for_equil_rad
+- Update default for RRTMGP (cam7 physics) to 2
+- Correct the stochastic tau pumas file path
+
+List any changes to the defaults for the boundary datasets: N/A
+
+Describe any substantial timing or memory changes: N/A
+
+Code reviewed by: cacraigucar, peverwhee
+
+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   src/physics/cam/radheat.F90
+- remove unused variables
+- read in p_top_for_equil_rad in readnl
+- use p_top_for_equil_rad as minimum lw pressure
+
+M   src/physics/rrtmgp/radiation.F90
+- Remove p_top_for_rrtmgp from readnl
+- "use" p_top_for_equil_rad in radiation_init to pass into rrtmgp_inputs_setup_init
+
+M   src/physics/waccm/radheat.F90
+- Add p_top_for_equil_rad to readnl routine
+
+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:
+  ERP_Ld3.ne30pg3_ne30pg3_mt232.FHISTC_MTt4s.derecho_intel.cam-outfrq1d_aoa (Overall: DIFF) details:
+  SMS_D_Ln9.ne30pg3_ne30pg3_mt232.FHISTC_MTso.derecho_intel.cam-outfrq9s (Overall: DIFF) details:
+  SMS_D_Ln9_P1280x1.ne30pg3_ne30pg3_mt232.FHISTC_MTt1s.derecho_intel.cam-outfrq9s_Leung_dust (Overall: DIFF) details:
+  - diffs for MT configuration due to namelist default change
+
+  ERC_D_Ln9.mpasa120_mpasa120.FHISTC_LTso.derecho_intel.cam-outfrq9s_mpasa120 (Overall: NLFAIL) details:
+  ERC_D_Ln9.mpasa120_mpasa120.QPC7.derecho_intel.cam-outfrq9s_mpasa120 (Overall: NLFAIL) details:
+  ERC_D_Ln9.ne30pg2_ne30pg2_mt232.QPC7.derecho_intel.cam-outfrq9s (Overall: NLFAIL) details:
+  ERI_D_Ln18.ne30pg3_ne30pg3_mt232.FHISTC_LTso.derecho_intel.cam-outfrq3s_eri (Overall: NLFAIL) details:
+  ERP_Ld3.ne16pg3_ne16pg3_mg17.FHISTC_WAt1ma.derecho_intel.cam-reduced_hist1d (Overall: NLFAIL) details:
+  ERP_Ln9.ne30pg3_ne30pg3_mg17.FHISTC_WAma.derecho_intel.cam-outfrq9s (Overall: NLFAIL) details:
+  ERR_Ln9.ne16pg3_ne16pg3_mt232.FHISTC_LTso.derecho_intel.cam-outfrq9s_bwic (Overall: NLFAIL) details:
+  ERS_Ln9.ne30pg3_ne30pg3_mg17.FHISTC_WXma.derecho_intel.cam-outfrq9s_ctem (Overall: NLFAIL) details:
+  SMS_C2_D_Ln9.ne16pg3_ne16pg3_mg17.FHISTC_WXma.derecho_intel.cam-outfrq9s (Overall: NLFAIL) details:
+  SMS_Ln9.ne30pg3_ne30pg3_mg17.FW2000climo.derecho_intel.cam-outfrq9s_rrtmgp (Overall: NLFAIL) details:
+  - nlfails for all RRTMGP configurations due to namelist name change
+
+  SMS_D_Ln9_P1280x1.ne0CONUSne30x8_ne0CONUSne30x8_mt12.FCHIST.derecho_intel.cam-outfrq9s (Overall: FAIL)
+  - pre-existing failure due to build-namelist error requiring CLM/CTSM external update.
+
+derecho/nvhpc/aux_cam:
+  ERS_Ln9.ne30pg3_ne30pg3_mg17.F2000dev.derecho_nvhpc.cam-outfrq9s_gpu_default (Overall: NLFAIL) details:
+  - nlfail for all RRTMGP configurations due to namelist name change
+
+izumi/nag/aux_cam:
+  ERC_D_Ln9.mpasa480_mpasa480_mt232.QPC7.izumi_nag.cam-outfrq9s_mpasa480 (Overall: NLFAIL) details:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_nag.cam-cosp_rad_diags (Overall: NLFAIL) details:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_nag.cam-outfrq9s_nochem (Overall: NLFAIL) details:
+  - nlfails for all RRTMGP configurations due to namelist name change
+
+izumi/gnu/aux_cam:
+  ERC_D_Ln9.mpasa480_mpasa480_mt232.FHISTC_LTso.izumi_gnu.cam-outfrq9s_mpasa480 (Overall: NLFAIL) details:
+  ERC_D_Ln9.ne3pg3_ne3pg3_mt232.FHISTC_LTso.izumi_gnu.cam-sat_lcltod (Overall: NLFAIL) details:
+  ERP_D_Ln9.ne3pg3_ne3pg3_mg37.QPC7.izumi_gnu.cam-outfrq9s (Overall: NLFAIL) details:
+  SMS_D_Ln3.ne3pg3_ne3pg3_mt232.PC7.izumi_gnu.cam-pc7_ne3pg3 (Overall: NLFAIL) details:
+  - nlfails for all RRTMGP configurations due to namelist name change
 
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