Difference between revisions of "GEOS-Chem 14.2.1"

Latest revision as of 16:24, 2 April 2024

This page includes information about GEOS-Chem 14.2.1 and HEMCO 3.7.1.

Version overview

Release date: 10 Oct 2023

Repository	GitHub Milestone	DOI
GCClassic 14.2.1	14.2.1 milestone for geoschem/GCClassic	10.5281/zenodo.8427641
GCHP 14.2.1	14.2.1 milestone for geoschem/GCHP	10.5281/zenodo.8427735
GEOS-Chem (science codebase) 14.2.1	14.2.1 milestone for geoschem/geos-chem	10.5281/zenodo.8427562
HEMCO 3.7.1	3.7.1 milestone for geoschem/HEMCO	10.5281/zenodo.8427520

Features in this version

Feature	Contributor(s)	Model scope	Notes and references
Updates that will not affect full-chemistry benchmark simulations
Prevent double-counting oil emissions in CH4 and carbon simulations	Nick Balasus (Harvard)	carbon sim CH4 sim tagCH4 sim	geoschem/geos-chem PR #1856 geoschem/geos-chem #1855
Add fixes to reduce differences between the CH4 simulation and CH4 in carbon simulation	Melissa Sulprizio (Harvard)	carbon sim CH4 sim tagCH4 sim	geoschem/geos-chem PR #1916 geoschem/geos-chem PR #1923
Update GEPA CH4 emissions to gridded GHGI v2	Melissa Sulprizio (Harvard)	carbon sim CH4 sim tagCH4 sim	geoschem/geos-chem PR #1917
Add variable to geoschem_config.yml to perturb CH4 boundary conditions	Nicholas Balasus (Harvard)	carbon sim CH4 sim tagCH4 sim	geoschem/geos-chem PR #1934
Add option to perturb OH in CH4 simulations	Melissa Sulprizio (Harvard)	carbon sim CH4 sim tagCH4 sim	geoschem/geos-chem PR #1977
Bug fix for analytical CH4 inversions	Melissa Sulprizio (Harvard)	IMI	geoschem/geos-chem PR #1976
Set RUNDIR_GRID_HALF_POLAR when creating rundirs for 0.25x0.3125 and 0.5x0.2625 global domains	Melissa Sulprizio (Harvard)	Run directory	geoschem/geos-chem PR #1971
Explicitly define tagCH4 simulations instead of making assumption based on number of species	Melissa Sulprizio (Harvard)	tagCH4 sim	geoschem/geos-chem PR #1799
Fixes for the SatDiagn diagnostic	Bob Yantosca (Harvard)	Diagnostics	geoschem/geos-chem PR #1808 geoschem/geos-chem #1805
Fix incorrect comments in GeosUtil/unitconv_mod.F90	Haipeng Lin (Harvard)	Documentation	geoschem/geos-chem #1935
Update minimum KPP version required for the fullchem mechanism from 2.5.0 to 3.0.0	Bob Yantosca (Harvard)	Fullchem sim	geoschem/geos-chem PR #1857 geoschem/geos-chem #1687
Fix issues that prevented compiling GEOS-Chem with the custom mechanism	Bob Yantosca (Harvard)	Fullchem sim	geoschem/geos-chem PR #1946 geoschem/geos-chem #1937 geoschem/geos-chem #1819
Fix GEOS-Chem Classic parallelization errors revealed by parallelization tests	Bob Yantosca (Harvard)	Hg sim Luo Wetdep	geoschem/geos-chem PR #1682 geoschem/geos-chem #1637
Fix incorrect time slice read as boundary conditions in GC-Classic nested model	Haipeng Lin (Harvard)	Nested grid	geoschem/geos-chem PR #1891 geoschem/geos-chem PR #1896
Impose boundary conditions at every timestep in GC-Classic nested grid simulations	Haipeng Lin (Harvard)	Nested grid	geoschem/geos-chem PR #1895
Don't allow user to create MERRA-2 0.25 x 0.3125 run directories for GCClassic	Bob Yantosca (Harvard)	Run directory	geoschem/geos-chem PR #1958 geoschem/geos-chem #1944
Add sanity check for missing molecular weights; Add missing MW for HgBrO	Bob Yantosca (Harvard)	Species metadata	geoschem/geos-chem PR #1843 geoschem/geos-chem #1832
Updates to integration test scripts (directory reorganization; updates for the WashU Compute1 cluster)	Bob Yantosca (Harvard)	Testing	geoschem/geos-chem PR #1957 geoschem/geos-chem PR #1794 geoschem/GCClassic PR #41 geoschem/GCHP PR #327
Updates included in HEMCO 3.7.1 (will not affect full-chemistry benchmarks)
Update Hg0 Emission Factors in hcox_gfed_include_gfed4.H	Eric Roy (MIT)	HEMCO Hg sim	geoschem/HEMCO PR #215 geoschem/geos-chem #1817
Remove extraneous code from hco_extlist_mod.F90	Bob Yantosca (Harvard)	HEMCO	geoschem/HEMCO PR #218 geoschem/geos-chem #1827
Fix incorrect longitude definitions for HEMCO standalone 0.25x03125 and 0.5x0625 grids	Nick Balasus (Harvard)	HEMCO standalone	geoschem/HEMCO PR #229 geoschem/HEMCO #228
Ensure that HEMCO vertical regridding is mass-conserving (plus related modifications in GEOS-Chem) This only affects regridding from 72/73 levels -> 47/48 levels (GEOS) or 102/103 levels -> 74/75 levels (GISS)	Nicholas Balasus (Harvard) Haipeng Lin (Harvard) Todd Mooring (Harvard)	Simulations w/ reduced grids	geoschem/HEMCO PR #235 geoschem/HEMCO #232 geoschem/geos-chem PR #1925
Updates that only affect GCHP
Make ESMF logging a run-time option in new configure file ESMF.rc NOTE: This breaks hardwired settings that could only be changed by recompilation	Lizzie Lundgren (Harvard)	GCHP Run directory	geoschem/geos-chem PR #1879 geoschem/GCHP PR #330 geoschem/MAPL PR #29
Use standard format for AEIC 2019 monthly climatology in ExtData.rc	Lizzie Lundgren (Harvard)	GCHP Run directory	geoschem/gchp PR #330
Bugfix to initialize advected species to background values if not in restart file	Lizzie Lundgren (Harvard)	GCHP	geoschem/geos-chem PR #1929 geoschem/geos-chem #1930
Add warnings about area-dependency to GCHP HISTORY.rc files	Lizzie Lundgren (Harvard)	GCHP Diagnostics	geoschem/geos-chem PR #1931 geoschem/GCHP #338
Fix ocean mask file in transport tracer sim if using FP native	Lizzie Lundgren (Harvard)	Run directory	geoschem/geos-chem PR #1974
Updates that only affect GEOS-Chem in the NASA GEOS ESM
Updates for GEOS-Chem in the NASA GEOS ESM Minor updates (mostly in the run directory) to make GEOS-Chem compatible with the most recent GEOS version.	Lizzie Lundgren (Harvard) Christoph Keller (GMAO)	GEOS	geoschem/geos-chem PR #1884
Updates to meet CESM coding guidelines (to facilitate interfacing GEOS-Chem and HEMCO into CESM)
Update netCDF code (in src/Shared/NcdfUtil) to use the netCDF-F90 interface	Bob Yantosca (Harvard)	CESM HEMCO netCDF I/O	geoschem/HEMCO PR #227 geoschem/HEMCO PR #226 geoschem/HEMCO #225
Limit GC_72_EDGE_SIGMA variable definition to less than 135 columns	Bob Yantosca (Harvard)	CESM HEMCO netCDF I/O	geoschem/HEMCO PR #234 geoschem/HEMCO #233
Convert GEOS-Chem netCDF utility routines to use the netCDF-F90 interface	Bob Yantosca (Harvard)	CESM netCDF I/O	geoschem/geos-chem PR #1896 geoschem/geos-chem PR #1879 geoschem/HEMCO #225
Update calls to MPI functions when using GEOS-Chem in CESM	Lizzie Lundgren (Harvard)	CESM	geoschem/geos-chem PR #1951 ESCOMP/CAM#484

Difference between revisions of "GEOS-Chem 14.2.1"

Latest revision as of 16:24, 2 April 2024

Version overview

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@@ Line 1: / Line 1: @@
 '''''[[GEOS-Chem_versions|GEOS-Chem Versions Page]]'''''
-This page includes information about GEOS-Chem 14.2.1 and HEMCO 3.7.1. The  [http://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-Chem_model_development_priorities GEOS-Chem model development priorities page] lists additional developments that may be added.
+This page includes information about GEOS-Chem 14.2.1 and HEMCO 3.7.1.
 === Version overview ===
-'''''This version is currently in development'''''
+'''''Release date: 10 Oct 2023'''''
+{| border=1 cellspacing=0 cellpadding=5
+|-bgcolor="#CCCCCC"
+!width="300px"|Repository
+!width="300px"|GitHub Milestone
+!width="200px"|DOI
+|-valign="top"
+|GCClassic 14.2.1
+|[https://github.com/geoschem/GCClassic/milestone/12closed=1 14.2.1 milestone for geoschem/GCClassic]
+|[https://doi.org/10.5281/zenodo.8427641 10.5281/zenodo.8427641]
+|-valign="top"
+|GCHP 14.2.1
+|[https://github.com/geoschem/GCHP/milestone/20?closed=1 14.2.1 milestone for geoschem/GCHP]
+|[https://doi.org10.5281/zenodo.8427735 10.5281/zenodo.8427735]
+|-valign="top"
+|GEOS-Chem (science codebase) 14.2.1
+|[https://github.com/geoschem/geos-chem/milestone/40closed=1 14.2.1 milestone for geoschem/geos-chem]
+|[https://doi.org/10.5281/zenodo.8427562 10.5281/zenodo.8427562]
+|-valign="top"
+|HEMCO 3.7.1
+|[https://github.com/geoschem/HEMCO/milestone/18?closed=1 3.7.1 milestone for geoschem/HEMCO]
+|[https://doi.org/10.5281/zenodo.8427520 10.5281/zenodo.8427520]
+|}
-The following items have been added to GEOS-Chem 14.2.1.  Also see the following Github pages:
+=== Features in this version ===
-*[https://github.com/geoschem/GCClassic/milestone/12closed=1 14.2.1 milestone for geoschem/GCClassic]
-*[https://github.com/geoschem/GCHP/milestone/20?closed=1 14.2.1 milestone for geoschem/GCHP]
-*[https://github.com/geoschem/geos-chem/milestone/40closed=1 14.2.1 milestone for geoschem/geos-chem] (science codebase)
-*[https://github.com/geoschem/HEMCO/milestone/18?closed=1 3.7.1 milestone for geoschem/HEMCO]
 {| border=1 cellspacing=0 cellpadding=5
@@ Line 22: / Line 45: @@
 |-valign="top"
 !colspan="4" bgcolor="#CCFFFF"|Updates that will not affect full-chemistry benchmark simulations
-|-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/1843 Add sanity check for missing molecular weights; Add missing MW for HgBrO]
-* NOTE: This also fixes an issue in the TransportTracers simulation where tracers with undefined MW_g values were set to zero concentrations.
-|Bob Yantosca (Harvard)
-|Bug fix
-|
-*[https://github.com/geoschem/geos-chem/pull/1843 geoschem/geos-chem PR #1843]
-*[https://github.com/geoschem/geos-chem/issues/1832 geoschem/geos-chem #1832]
 |-valign="top"
 |[https://github.com/geoschem/geos-chem/pull/1856 Prevent double-counting oil emissions in CH4 and carbon simulations]
-* This PR moves the EDGAR_REF_TRF entry in HEMCO_Config.rc template files from other anthropogenic emissions to oil emissions so that it can be overwritten by GFEIv2 emissions.
 |Nick Balasus (Harvard)
-|Bug fix<br>carbon sim<br>CH4 sim<br>tagCH4 sim
+|carbon sim<br>CH4 sim<br>tagCH4 sim
 |
 *[https://github.com/geoschem/geos-chem/pull/1856 geoschem/geos-chem PR #1856]
 *[https://github.com/geoschem/geos-chem/issues/1855 geoschem/geos-chem #1855]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1916 Add fixes to reduce differences between the CH4 simulation and CH4 in carbon simulation]
+|Melissa Sulprizio (Harvard)
+|carbon sim<br>CH4 sim<br>tagCH4 sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1916 geoschem/geos-chem PR #1916]
+*[https://github.com/geoschem/geos-chem/pull/1923 geoschem/geos-chem PR #1923]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1917 Update GEPA CH4 emissions to gridded GHGI v2]
+|Melissa Sulprizio (Harvard)
+|carbon sim<br>CH4 sim<br>tagCH4 sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1917 geoschem/geos-chem PR #1917]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1934 Add variable to geoschem_config.yml to perturb CH4 boundary conditions]
+|Nicholas Balasus (Harvard)
+|carbon sim<br>CH4 sim<br>tagCH4 sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1934 geoschem/geos-chem PR #1934]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1977 Add option to perturb OH in CH4 simulations]
+|Melissa Sulprizio (Harvard)
+|carbon sim<br>CH4 sim<br>tagCH4 sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1977 geoschem/geos-chem PR #1977]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1976 Bug fix for analytical CH4 inversions]
+|Melissa Sulprizio (Harvard)
+|IMI
+|
+*[https://github.com/geoschem/geos-chem/pull/1976 geoschem/geos-chem PR #1976]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1971 Set RUNDIR_GRID_HALF_POLAR when creating rundirs for 0.25x0.3125 and 0.5x0.2625 global domains]
+|Melissa Sulprizio (Harvard)
+|Run directory
+|
+*[https://github.com/geoschem/geos-chem/pull/1971 geoschem/geos-chem PR #1971]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1799 Explicitly define tagCH4 simulations instead of making assumption based on number of species]
+|Melissa Sulprizio (Harvard)
+|tagCH4 sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1799 geoschem/geos-chem PR #1799]
 |-valign="top"
 |[https://github.com/geoschem/geos-chem/pull/1808 Fixes for the SatDiagn diagnostic]
-* Add SatDiagnEdge collection
-* Prevent segfault errors
 |Bob Yantosca (Harvard)
-|Bug fix<br>Diagnostics
+|Diagnostics
 |
 *[https://github.com/geoschem/geos-chem/pull/1808 geoschem/geos-chem PR #1808]
 *[https://github.com/geoschem/geos-chem/issues/1805 geoschem/geos-chem #1805]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1935 Fix incorrect comments in GeosUtil/unitconv_mod.F90]
+|Haipeng Lin (Harvard)
+|Documentation
+|
+*[https://github.com/geoschem/geos-chemn/pull/1935 geoschem/geos-chem #1935]
 |-valign="top"
 |[https://github.com/geoschem/geos-chem/pull/1857 Update minimum KPP version required for the fullchem mechanism from 2.5.0 to 3.0.0]
-*This PR closes a loophole where a user could potentially rebuild the fullchem mechanism with a KPP version that is too old.
-*The existing KPP fullchem mechanism code has not been changed, and thus this PR will not affect fullchem benchmark simulations.
 |Bob Yantosca (Harvard)
-|Bug fix<br>Fullchem sim
+|Fullchem sim
 |
 *[https://github.com/geoschem/geos-chem/pull/1857 geoschem/geos-chem PR #1857]
 *[https://github.com/geoschem/geos-chem/issues/1687 geoschem/geos-chem #1687]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1946 Fix issues that prevented compiling GEOS-Chem with the custom mechanism]
+|Bob Yantosca (Harvard)
+|Fullchem sim
+|
+*[https://github.com/geoschem/geos-chem/pull/1857 geoschem/geos-chem PR #1946]
+*[https://github.com/geoschem/geos-chem/issues/1937 geoschem/geos-chem #1937]
+*[https://github.com/geoschem/geos-chem/issues/1819 geoschem/geos-chem #1819]
 |-valign="top"
 |[https://github.com/geoschem/geos-chem/pull/1682 Fix GEOS-Chem Classic parallelization errors revealed by parallelization tests]
 |Bob Yantosca (Harvard)
-|Bug fix<br>Hg sim<br>Luo Wetdep
+|Hg sim<br>Luo Wetdep
 |
 *[https://github.com/geoschem/geos-chem/pull/1682 geoschem/geos-chem PR #1682]
 *[https://github.com/geoschem/geos-chem/issues/1637 geoschem/geos-chem #1637]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/1799 Explicitly define tagCH4 simulations instead of making assumption based on number of species]
+|[https://github.com/geoschem/geos-chem/pull/1891 Fix incorrect time slice read as boundary conditions in GC-Classic nested model]
-|Melissa Sulprizio (Harvard)
+|Haipeng Lin (Harvard)
-|Bug fix<br>tagCH4 sim
+|Nested grid
 |
-*[https://github.com/geoschem/geos-chem/pull/1799 geoschem/geos-chem PR #1799]
+*[https://github.com/geoschem/geos-chem/pull/1891 geoschem/geos-chem PR #1891]
+*[https://github.com/geoschem/geos-chem/pull/1896 geoschem/geos-chem PR #1896]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1895 Impose boundary conditions at every timestep in GC-Classic nested grid simulations]
+|Haipeng Lin (Harvard)
+|Nested grid
+|
+*[https://github.com/geoschem/geos-chem/pull/1895 geoschem/geos-chem PR #1895]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1958 Don't allow user to create MERRA-2 0.25 x 0.3125 run directories for GCClassic]
+|Bob Yantosca (Harvard)
+|Run directory
+|
+*[https://github.com/geoschem/geos-chem/pull/1958 geoschem/geos-chem PR #1958]
+*[https://github.com/geoschem/geos-chem/issues/1944 geoschem/geos-chem #1944]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1843 Add sanity check for missing molecular weights; Add missing MW for HgBrO]
+|Bob Yantosca (Harvard)
+|Species metadata
+|
+*[https://github.com/geoschem/geos-chem/pull/1843 geoschem/geos-chem PR #1843]
+*[https://github.com/geoschem/geos-chem/issues/1832 geoschem/geos-chem #1832]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/1794 Run directory updates for integration tests]
+|[https://github.com/geoschem/geos-chem/pull/1794 Updates to integration test scripts (directory reorganization; updates for the WashU Compute1 cluster)]
-* This PR now ensures that diagnostic files and restart files are archived in each integration test run directory.
-* Updates to scripts also allow us to compare integration test run directories for identicality.
 |Bob Yantosca (Harvard)
 |Testing
 |
+*[https://github.com/geoschem/geos-chem/pull/1957 geoschem/geos-chem PR #1957]
 *[https://github.com/geoschem/geos-chem/pull/1794 geoschem/geos-chem PR #1794]
 *[https://github.com/geoschem/GCClassic/pull/41 geoschem/GCClassic PR #41]
@@ Line 93: / Line 192: @@
 |[https://github.com/geoschem/HEMCO/pull/215 Update Hg0 Emission Factors in hcox_gfed_include_gfed4.H]
 |Eric Roy (MIT)
-|Bug fix<br>HEMCO<br>Hg sim
+|HEMCO<br>Hg sim
 |
 *[https://github.com/geoschem/HEMCO/pull/215 geoschem/HEMCO PR #215]
@@ Line 101: / Line 200: @@
 |[https://github.com/geoschem/HEMCO/pull/218 Remove extraneous code from hco_extlist_mod.F90]
 |Bob Yantosca (Harvard)
-|Bug fix<br>HEMCO
+|HEMCO
 |
 *[https://github.com/geoschem/HEMCO/pull/218 geoschem/HEMCO PR #218]
@@ Line 107: / Line 206: @@
 |-valign="top"
-|[https://github.com/geoschem/HEMCO/pull/226 Update netCDF code (in src/Shared/NcdfUtil) to use the netCDF-F90 interface]
+|[https://github.com/geoschem/HEMCO/pull/229 Fix incorrect longitude definitions for HEMCO standalone 0.25x03125 and 0.5x0625 grids]
-*This update was necessary to meet CESM coding standards, so that HEMCO could be merged into CESM.
+|Nick Balasus (Harvard)
-|Bob Yantosca (Harvard)
+|HEMCO standalone
-|CESM<br>HEMCO<br>netCDF I/O
 |
-*[https://github.com/geoschem/HEMCO/pull/226 geoschem/HEMCO PR #226]
+*[https://github.com/geoschem/HEMCO/pull/229 geoschem/HEMCO PR #229]
-*[https://github.com/geoschem/HEMCO/issues/225 geoschem/HEMCO #225]
+*[https://github.com/geoschem/HEMCO/issues/228 geoschem/HEMCO #228]
+|-valign="top"
+|[https://github.com/geoschem/HEMCO/pull/235 Ensure that HEMCO vertical regridding is mass-conserving (plus related modifications in GEOS-Chem)]
+*This only affects regridding from 72/73 levels -> 47/48 levels (GEOS) or 102/103 levels -> 74/75 levels (GISS)
+|Nicholas Balasus (Harvard)<br>Haipeng Lin (Harvard)<br>Todd Mooring (Harvard)
+|Simulations w/ reduced grids
+|
+*[https://github.com/geoschem/HEMCO/pull/235 geoschem/HEMCO PR #235]
+*[https://github.com/geoschem/HEMCO/issues/232 geoschem/HEMCO #232]
+*[https://github.com/geoschem/geos-chem/pull/1925 geoschem/geos-chem PR #1925]
 |-valign="top"
@@ Line 120: / Line 228: @@
 |-valign="top"
 |Make ESMF logging a run-time option in new configure file ESMF.rc
+*NOTE: This breaks hardwired settings that could only be changed by recompilation
 |Lizzie Lundgren (Harvard)
 |GCHP<br>Run directory
 |
-*[https://github.com/geoschem/geos-chem/pull/1876 geoschem/geos-chem PR #1876]
+*[https://github.com/geoschem/geos-chem/pull/1879 geoschem/geos-chem PR #1879]
+*[https://github.com/geoschem/GCHP/pull/330 geoschem/GCHP PR #330]
+*[https://github.com/geoschem/MAPL/pull/29 geoschem/MAPL PR #29]
 |-valign="top"
@@ Line 133: / Line 244: @@
 |-valign="top"
-|Update GCHP run files for NASA Pleiades cluster
+|[https://github.com/geoschem/geos-chem/pull/1929 Bugfix to initialize advected species to background values if not in restart file]
 |Lizzie Lundgren (Harvard)
-|GCHP<br>Run directory
+|GCHP
+|
+*[https://github.com/geoschem/geos-chem/pull/1929 geoschem/geos-chem PR #1929]
+*[https://github.com/geoschem/geos-chem/issues/1930 geoschem/geos-chem #1930]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1931 Add warnings about area-dependency to GCHP HISTORY.rc files]
+|Lizzie Lundgren (Harvard)
+|GCHP<br>Diagnostics
+|
+*[https://github.com/geoschem/geos-chem/pull/1931 geoschem/geos-chem PR #1931]
+*[https://github.com/geoschem/GCHP/issues/338 geoschem/GCHP #338]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/issues/1886 Fix ocean mask file in transport tracer sim if using FP native]
+|Lizzie Lundgren (Harvard)
+|Run directory
+|
+*[https://github.com/geoschem/geos-chem/pull/1974 geoschem/geos-chem PR #1974]
+|-valign="top"
+!colspan="4" bgcolor="#CCFFFF"|Updates that only affect GEOS-Chem in the NASA GEOS ESM
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1884 Updates for GEOS-Chem in the NASA GEOS ESM]
+*Minor updates (mostly in the run directory) to make GEOS-Chem compatible with the most recent GEOS version.
+|Lizzie Lundgren (Harvard)<br>Christoph Keller (GMAO)
+|GEOS
+|
+*[https://github.com/geoschem/geos-chem/pull/1884 geoschem/geos-chem PR #1884]
+|-valign="top"
+!colspan="4" bgcolor="#CCFFFF"|Updates to meet CESM coding guidelines (to facilitate interfacing GEOS-Chem and HEMCO into CESM)
+|-valign="top"
+|[https://github.com/geoschem/HEMCO/pull/226 Update netCDF code (in src/Shared/NcdfUtil) to use the netCDF-F90 interface]
+|Bob Yantosca (Harvard)
+|CESM<br>HEMCO<br>netCDF I/O
+|
+*[https://github.com/geoschem/HEMCO/pull/227 geoschem/HEMCO PR #227]
+*[https://github.com/geoschem/HEMCO/pull/226 geoschem/HEMCO PR #226]
+*[https://github.com/geoschem/HEMCO/issues/225 geoschem/HEMCO #225]
+|-valign="top"
+|[https://github.com/geoschem/HEMCO/pull/234 Limit GC_72_EDGE_SIGMA variable definition to less than 135 columns]
+|Bob Yantosca (Harvard)
+|CESM<br>HEMCO<br>netCDF I/O
+|
+*[https://github.com/geoschem/HEMCO/pull/234 geoschem/HEMCO PR #234]
+*[https://github.com/geoschem/HEMCO/issues/233 geoschem/HEMCO #233]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1879 Convert GEOS-Chem netCDF utility routines to use the netCDF-F90 interface]
+|Bob Yantosca (Harvard)
+|CESM<br>netCDF I/O
+|
+*[https://github.com/geoschem/geos-chem/pull/1896 geoschem/geos-chem PR #1896]
+*[https://github.com/geoschem/geos-chem/pull/1879 geoschem/geos-chem PR #1879]
+*[https://github.com/geoschem/HEMCO/issues/225 geoschem/HEMCO #225]
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/pull/1951 Update calls to MPI functions when using GEOS-Chem in CESM]
+|Lizzie Lundgren (Harvard)
+|CESM
 |
-*[https://github.com/geoschem/geos-chem/pull/1876 geoschem/geos-chem PR #1876]
+*[https://github.com/geoschem/geos-chem/pull/1951 geoschem/geos-chem PR #1951]
+*[https://github.com/ESCOMP/CAM/pull/484 ESCOMP/CAM#484]
 |}