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Releases: geoschem/GCClassic

GEOS-Chem Classic 13.3.2

18 Nov 17:38
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Release date: 18 Nov 2021

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Contains the following updates:

  • Fix outdated path in GCHP fullchem config file ExtData.rc

Please see the following pages for details on these updates:

GEOS-Chem Classic 13.3.1

15 Nov 18:00
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Release date: 15 Nov 2021

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Contains fixes for minor issues that were discovered during the 13.3.0 benchmarking process:

  • Diagnostic fixes:
    • Fix incorrect units in ProdLoss diagnostic output
    • Bug fix: Remove second underscore from State_Chm Hg simulation fields
    • Remove duplicate unit conversion from kg/kg dry to v/v dry in planeflight_mod.F90
    • Now allow GEOS-Chem Classic History collection names to contain an underscore
  • Other updates and fixes:
    • Stop gracefully if the chemical solver fails to converge to a solution twice in a row
    • Also print out concentrations and reaction rates at the affected grid box, which can aid in debugging the problem
    • Fix call to timers in fullchem_mod.F90
    • Use default timesteps (transport=600s, chemistry=1200s) for nested-grid simulations using 0.5° x 0.625° grids
      • EXCEPTION: CH4 simulations at 0.5° x 0.625° will still use transport=300s, chemistry=600s timesteps
    • Fix incorrect file path in TOMAS routine YuIMN_Code.F90
  • GCHP updates and fixes:
    • Fix incorrect file timestamp with freq=1hr and duration=24hr
    • The cleanRunDir.sh script now removes additional log files produced by GCHP

Please see the following pages for details on these updates:

GEOS-Chem Classic 13.3.0

15 Nov 15:53
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Release Date: 15 Nov 2021

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GEOS-Chem 13.3.0 contains the following updates:

  • Gas-phase chemistry updates:
    • Addition of aromatic VOC chemistry
    • Addition of C2H2 and C2H4 chemistry
    • Addition of CH3O2 + OH reaction
    • Addition of HMS chemistry
  • Heterogenous chemistry updates:
    • Cleaning up hetchem reaction rate computations for clarity and efficiency
    • Updates to IONO2 hydrolysis reaction following Wang et al. (2021)
    • Revise gamma(N2O5) computation; cap A at 3.2e-8
    • Fixed typo in routine CloudHet
    • Fixed typos in ClNO2 hetchem reactions: HNO2 should be a product, not HNO3
    • Add better error trap criteria to prevent reaction rate computations from blowing up
  • Emissions updates:
    • Add option to use NEI2016 emissions over the US (turned off by default)
    • Avoid double counting of acetone source from monoterpenes when using online MEGAN
    • Update volcano emissions to May 2020 and add climatology
    • Updated offline dust emissions from Meng et al. (2021)
      • NOTE: benchmark simulations use online dust emissions instead
    • Send all HEMCO error messages to GEOS-Chem log
  • Other updates:
    • Updated aerosol dry deposition
    • The ObsPack diagnostic can now use the ?ADV? Wildcard
  • Features only affecting GCHP:
    • Include thread number in GEOS-Chem and HEMCO error messages
    • GCHP Adjoint updates

Please see the following pages for details on these updates, including benchmarks:

GEOS-Chem Classic 13.2.1

10 Sep 23:01
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Release date: 10 Sep 2021

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This release fixes the following issue identified since 13.2.0:

  • Retire tropchem simulation as an option
  • Bug fix for JvalO3O1D and JValO3O3P diagnostics
  • Bug fixes for the planeflight diagnostic
  • Several bug fixes for nested-grid simulations
  • Several bug fixes for Hg simulations
  • Add WashU data server to data download script
  • Update the download_data.py script to read global settings from a YAML file

Please see the following links for more information on this version.

GEOS-Chem Classic 13.2.0

10 Sep 17:57
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Release date: 07 Sep 2021

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This is the release for GEOS-Chem 13.2.0. Major updates since 13.1.2 include:

  • CEDS v2 emissions through 2019
  • Updated Yuan/BNU MODIS LAI product (2000-2019)
  • Improved wet scavenging from Luo et al. (2020) (as option)
  • Blowing snow emissions of sea salt and sea salt bromide
  • Trace metal simulation

Please see the following links for more information on this version.

Overview

Documentation

GEOS-Chem Classic 13.1.2

06 Jul 14:03
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Release date: 06 Jul 2021

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Features:

  1. Zero-diff updates required for CESM2-GC
  2. Updated the download_data.py script to fetch GCAP2 met fields from U. Rochester server
  3. Added .zenodo.json for auto-filling DOI fields

GEOS-Chem Classic 13.1.1

22 Jun 18:48
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Release Date 22 Jun 2021

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This release fixes the following issue identified since 13.1.0:

  • Fix for PM2.5 diagnostic
  • Updates for compatibility of GEOS-Chem in GEOS

Please see the following links for more information on this version.

GEOS-Chem Classic 13.1.0

18 Jun 14:12
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Release date: 17 Jun 2021

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This is the release for GEOS-Chem 13.1.0. Updates since 13.0.2 include:

  • Vertical allocation of CEDS energy and industry emissions
  • Diurnal scale factors of power plane emissions in Chine
  • Fix for H2O boundary conditions at the tropopause
  • Updates to speed up the chemical solver
  • Support for GCAP 2.0
  • Updated CH4 emissions
  • Bug fix for nested grid simulations to read boundary conditions continuously

Please see the following links for more information on this version.

Overview

Documentation

GEOS-Chem Classic 13.0.2

12 Apr 15:40
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Release date: 12 Apr 2021

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This patch version of GEOS-Chem fixes the following issues discovered since 13.0.1:

  • Met fields were only being read in once at the start of the simulation

See the 13.0.2 milestone for details.

GEOS-Chem Classic 13.0.1

23 Mar 20:28
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Release date: 23 Mar 2021

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This release fixes the following issue identified since 13.0.0:

  • Use online dust emissions (DustDead) by default
  • Add several fixes for the GEOS-Chem Classic dry-run option
  • Force GEOS-Chem Classic restart file to match simulation date
  • Avoid "Is_Gas and Is_Aerosol are both false" error when adding new P/L species in KPP
  • Fix MAXRO2 in planeflight diagnostic

See the 13.0.1 milestone for details.