GEOS-Chem 13.4.0

Release date: 02 May 2022

This is a minor version release and features the following updates:

• Migrated sulfate chemistry to KPP
• Increased surface resistance for O3 drydep on ice/snow
• Updated benchmarks to use degassing-only volcano climatology
• Added Rn222 emissions from Zhang et al (2021)
• Updated automated run-directory creation
• Updated Hg simulation via KPP
• Added bug fixes for HCl uptake on seasalt and Henry's law computation in hetchem
• Updated HEMCO to version 3.4.0

See the GEOS-Chem 13.4.0 page for a complete list of updates.

What's Changed

• Bug fix: Replace single precision constants in fullchem.eqn w/ doubles (closes #951) by @yantosca in #952
• Added a 'DefaultCollection' to GCHP by @LiamBindle in #1008
• Add PM10 diagnostic according to suggestions from Aerosols WG (Closes #958) by @yantosca in #992
• Remove duplicate call to Init_and_Register for the SpeciesConc diagnostic (Closes #1021) by @yantosca in #1023
• Run directory updates enabling automated run directory creation for GCHP and GCClassic by @LiamBindle in #459
• Prevent double-counting of HCl uptake on sea-salt aerosols (Closes #1034) by @yantosca in #1041
• Allow negative pKa but skip missing values in routine CALC_HEFF (Closes #1001) by @yantosca in #1042
• Update O3 deposition surface resistance to ice & snow (Supersedes #1013, Closes #997) by @yantosca in #1055
• GEOS-Chem Classic and GCHP fullchem benchmarks now use degassing volcano climatology (Closes #1005) by @yantosca in #1053
• Added support for driving GEOS-Chem with native GEOS meteorological files by @LiamBindle in #945
• Retire CH4 wetland emissions extension by @msulprizio in #1073
• Implement Hg chemistry via KPP by @yantosca in #1063
• Fix scale factors applied to AEIC VOC emissions - Closes #915 by @flavioquadros in #1067
• GEOS-Chem Classic History can now archive irregular intervals (e.g. a month and a day) -- Closes #1020 by @yantosca in #1090
• Add sulfur in-cloud and on seasalt reactions via KPP (Supersedes #934) by @yantosca in #1054
• GCHP mass flux updates to geoschem/geos-chem by @LiamBindle in #1097
• GEOS-Chem 13.3.4 in GEOSgcm by @lizziel in #1088
• Updates from GEOS developers by @lizziel in #1102
• Updates for CH4 anthropogenic emissions by @msulprizio in #1104
• Fix occasional RRTMG compile error encountered during linking stage by @lizziel in #1112
• Fixed timesteps and Dust_SF for stretched-grid simulations (runConfig.sh) by @LiamBindle in #1124
• Add capability for analytical inversions with CH4 simulations by @msulprizio in #1142
• CH4 pseudo flux diagnostic by @lizziel in #1148
• Add capability to write GEOS-Chem Classic timer output to a JSON file by @yantosca in #1120
• Updates to tagged O3 simulaton for efficiency and correctness - Closes #1109 by @yantosca in #1150
• Fix unit conversion error in tagged CO simulation by @msulprizio in #1151
• Fix typos for MULTISEAICE and CEDS_NO_SHIP entries in HEMCO_Config.rc by @msulprizio in #1159
• Updated data period for CEDS_NO_SHP v2021-06 when ParaNOx is OFF by @LiamBindle in #1161
• Add updates for numerical stability (should be merged before #1170) by @yantosca in #1169
• Increase minimum value of ConcEduct from 1e-8 to 1.0 molec/cm3 - Closes #1115 by @yantosca in #1123
• SIV chemistry updates from Mike Long merged atop PR #1161 -- Supersedes #1166 by @yantosca in #1170
• GCHP fix: move setup_wetscav so C_H2O is not all zeros in first timestep by @lizziel in #1178
• Extend QFED range end from 2020 to 2022 by @lizziel in #1182
• Turn off sea salt aerosol debromination by default by @msulprizio in #1177
• Updated HEMCO_Config.rc and ExtData.rc templates for AEIC2019 emissions by @yantosca in #1183
• Fix parallelization issue in sulfate chemistry (plus other fixes for numerical stability) by @yantosca in #1190
• Revert update for addressing numerical noise in tpcore by @msulprizio in #1194
• Remove goto 9999 statement from chemistry_mod.F90 by @msulprizio in #1211
• Prevent numerical instability in the hetchem function CloudHet -- Closes #1206 by @yantosca in #1206
• Updates to Hg simulation config files and other necessary fixes -- Closes #1192 by @yantosca in #1196

New Contributors

• @flavioquadros made their first contribution in #1067

Full Changelog: 13.3.4...13.4.0