Merge pull request #3065 from fvitt/megan_coeffs_fix

ctsm5.3.052: MEGAN coefs fix, answer changes for MEGAN

Author: ekluzek

.gitmodules

@@ -84,7 +84,7 @@ fxDONOTUSEurl = https://github.com/ESMCI/cime
 [submodule "cmeps"]
 path = components/cmeps
 url = https://github.com/ESCOMP/CMEPS.git
-fxtag = cmeps1.0.47
+fxtag = cmeps1.0.48
 fxrequired = ToplevelRequired
 # Standard Fork to compare to with "git fleximod test" to ensure personal forks aren't committed
 fxDONOTUSEurl = https://github.com/ESCOMP/CMEPS.git

components/cmeps

@@ -1,4 +1,80 @@
 ===============================================================
+Tag name: ctsm5.3.052
+Originator(s): erik (Erik Kluzek,UCAR/TSS,303-497-1326)
+Date: Fri 30 May 2025 12:44:17 AM MDT
+One-line Summary: Changes to MEGAN needed for coupled cases
+
+Purpose and description of changes
+----------------------------------
+
+Corrections on how MEGAN coefficients are applied.
+
+Depends on the cmeps tag cmeps1.1.1
+
+Significant changes to scientifically-supported configurations
+--------------------------------------------------------------
+
+Does this tag change answers significantly for any of the following physics configurations?
+(Details of any changes will be given in the "Answer changes" section below.)
+
+    [Put an [X] in the box for any configuration with significant answer changes.]
+
+[ ] clm6_0
+
+[ ] clm5_0
+
+[ ] ctsm5_0-nwp
+
+[ ] clm4_5
+
+
+Bugs fixed
+----------
+
+List of CTSM issues fixed (include CTSM Issue # and description) [one per line]:
+   Fixes #3016 -- low MEGAN emissions
+
+Notes of particular relevance for users
+---------------------------------------
+
+Notes of particular relevance for developers:
+---------------------------------------------
+
+Testing summary: regular
+----------------
+ [PASS means all tests PASS; OK means tests PASS other than expected fails.]
+
+  regular tests (aux_clm: https://github.com/ESCOMP/CTSM/wiki/System-Testing-Guide#pre-merge-system-testing):
+
+    derecho ----- OK
+    izumi ------- OK
+
+If the tag used for baseline comparisons was NOT the previous tag, note that here:
+
+Answer changes
+--------------
+
+Changes answers relative to baseline: Just for MEGAN
+
+  Summarize any changes to answers, i.e.,
+    - what code configurations: when MEGAN turned on
+    - what platforms/compilers: all
+    - nature of change:
+      change to climate in MEGAN results so that low emissions are improved
+         Just for VOC field 015 in the coupler
+
+Other details
+-------------
+
+List any git submodules updated (cime, rtm, mosart, cism, fates, etc.):
+    cmeps to cmeps1.0.48
+
+Pull Requests that document the changes (include PR ids):
+(https://github.com/ESCOMP/ctsm/pull)
+     #3065 -- MEGAN coefs fix, answer changes for MEGAN
+
+===============================================================
+===============================================================
 Tag name: ctsm5.3.051
 Originator(s): erik (Erik Kluzek,UCAR/TSS,303-497-1326)
 Date: Fri 30 May 2025 12:19:19 AM MDT

doc/ChangeLog

@@ -1,6 +1,7 @@
 Tag                   Who      Date  Summary
 ============================================================================================================================
-       ctsm5.3.051     erik 05/30/2025 Update submodules to cesm3_0_beta06 versions and update MEGAN/drydep test namelist
+       ctsm5.3.052     erik 05/30/2025 Changes to MEGAN needed for coupled cases
+       ctsm5.3.051     erik 05/28/2025 Update submodules to cesm3_0_beta06 versions and update MEGAN/drydep test namelist
        ctsm5.3.050 samrabin 05/29/2025 Fix Linux Podman; prefer Linux Docker; update docs docs.
        ctsm5.3.049 samrabin 05/27/2025 Switch docs to use Podman
        ctsm5.3.048 samrabin 05/26/2025 Automatically publish docs to this repo