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• GEOS-Chem v10-01 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v10-01]]. #[[Rn-Pb-Be_simulation#Budget_of_Pb210|Budget of Pb210 from 1-year benchmark simulations]]
  154 KB (24,591 words) - 21:08, 20 September 2022
• GEOS-Chem v11-02 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v11-02]]. == 1-year full-chemistry benchmarks ==
  158 KB (24,655 words) - 18:49, 28 May 2020
• GEOS-Chem v11-01 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v11-01]]. == 1-year full-chemistry benchmarks ==
  166 KB (26,088 words) - 18:43, 28 May 2020
• GEOS-Chem 12
  ...ated with a 1-month benchmark simulation (and one or more 1-year benchmark simulations if necessary). Each patch version carries the tag '''12.Y.Z''', which deno !colspan="4" bgcolor="#CCFFFF"|Updates that WILL NOT AFFECT the full-chemistry simulation
  133 KB (18,781 words) - 21:13, 21 June 2021
• GEOS-Chem v11-02
  ...c. were validated with 1-month benchmark simulations (and 1-year benchmark simulations if necessary). !colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
  88 KB (13,616 words) - 21:07, 20 September 2022
• GEOS-Chem v10-01
  and to compile and one or more GEOS-Chem simulations. ''NOTE: v10-01a, v10-02b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate sta
  99 KB (15,209 words) - 20:26, 20 September 2022
• GEOS-Chem v9-01-03 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-01-03]]. !Stratospheric chemistry mechanism
  82 KB (12,907 words) - 20:59, 20 June 2017
• GEOS-Chem v9-02
  ...comment period|resolve several minor issues mostly involving the specialty simulations and TOMAS simulation]]. ''v9-02a, v9-02b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate sta
  99 KB (14,884 words) - 20:45, 20 September 2022
• GEOS-Chem v9-02 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-02]]. !Tropospheric chemistry mechanism
  106 KB (16,718 words) - 19:15, 19 June 2017
• GEOS-Chem v11-01
  ''NOTE: v11-01a, v11-02b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate sta ...8O3.29_and_L.28O3.29|Bug fix for archiving P(Ox)/L(Ox) from full-chemistry simulations via the ND20 diagnostic]]
  95 KB (13,968 words) - 21:57, 20 December 2019
• GEOS-Chem 13.0.0
  !colspan="3" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations !colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
  448 KB (58,579 words) - 18:10, 3 January 2023
• GEOS-Chem v9-01-02
  ''v9-01-02a, v9-01-02b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate sta |[[#Various bug fixes for the offline Hg simulation|Various bug fixes for the offline Hg simulation]]
  43 KB (6,754 words) - 15:22, 19 June 2019
• GEOS-Chem v9-01-02 benchmark history
  On this page we have posted complete information about all benchmark simulations (both 1-month and 1-year) for [[GEOS-Chem v9-01-02]]. ...see the budget of Pb²¹⁰ and Be⁷ from 1-year Rn-Pb-Be simulations for v9-01-02 and previous versions:
  68 KB (10,687 words) - 22:14, 19 June 2017
• GEOS-Chem 14.0.0
  ...an="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry benchmark simulations ...ll/1229 Fix bugs causing differences when splitting up GC-Classic and GCHP simulations in time]
  435 KB (56,731 words) - 18:47, 12 January 2023
• GEOS-Chem versions
  *Add capability for TOMAS simulations in GCHP *[[GEOS-Chem_14.3.0#1-year_full-chemistry_benchmarks|1-year full-chemistry benchmarks]]
  46 KB (5,503 words) - 16:29, 2 April 2024
• Bugs and fixes in GEOS-Chem v9, v10, and v11
  |Chemistry ...osols#Fix_bugs_in_sulfate_chemistry_routines|(v11-02a) Fix bugs in sulfate chemistry routines]]
  33 KB (5,225 words) - 20:46, 2 January 2019
• GEOS-Chem 13.3.0
  ...an="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry benchmark simulations |Chemistry
  150 KB (19,810 words) - 18:18, 19 February 2022
• GEOS-Chem 13.4.0
  ...an="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry benchmark simulations |[https://github.com/geoschem/geos-chem/pull/1054 Migrate sulfate chemistry into KPP]
  178 KB (22,566 words) - 17:24, 26 October 2022
• GEOS-Chem v9-01-01
  |[[#Starting runs at times other than 00 GMT|Ability to start simulations at times other than 0h GMT]] |[[#Running offline simulations on the GEOS-5 72L grid|Ability to run offline simulations on the GEOS-5 72-layer grid]]
  36 KB (5,768 words) - 15:06, 19 June 2019
• Halogen chemistry mechanism
  The gas-phase chemistry follows Sherwen et al [2016b], with updates made to the heterogenous code t ...chlorine chemistry is from UCX [Eastham et al 2014]. Tropospheric chlorine chemistry follows that described in Eastham et al [2014] and Schmidt et al [2016], wi
  21 KB (3,286 words) - 16:51, 15 July 2019
• GEOS-Chem v9-01-03
  ''v9-01-03a, v9-01-03b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate sta ...CO3.2C_GLPAN_bug_in_standard_mechanism|Fix for GLCO3/GLPAN bug in standard chemistry mechanism]]
  38 KB (5,526 words) - 15:22, 19 June 2019
• Issues now resolved in GEOS-Chem 12
  # Available for full-chemistry and aerosols-only simulations === Corrections for CFCs in the chemistry mechanism ===
  70 KB (10,330 words) - 21:56, 20 December 2019
• GEOS-Chem model development priorities
  |ALK4 & R4N2 chemistry |Chemistry
  14 KB (2,006 words) - 16:35, 7 May 2024
• Bugs and fixes in GEOS-Chem 12.0.0 to 12.5.0
  |Chemistry ...Corrections_for_CFCs_in_the_chemistry_mechanism|Correction for CFCs in the chemistry mechanism]]
  41 KB (6,194 words) - 14:22, 22 March 2021
• GEOS-Chem Newsletter Fall 2011
  ...elopment tasks (i.e. code merging, generating 1-month and 1-year benchmark simulations, user support, documentation, etc.). ...r research assistant to join the GEOS-Chem Support Team in the Atmospheric Chemistry Modeling Group at Harvard (http://acmg.seas.harvard.edu and http://geos-ch
  27 KB (4,206 words) - 14:06, 19 June 2019
• Mineral dust aerosols
  ...collection|described HERE]]) are required for photolysis and heterogeneous chemistry. The 7 MDUST types also have distinct optical properties in the FAST-JX in ! Preserve original code for non-TOMAS simulations
  50 KB (7,218 words) - 16:41, 16 November 2020
• GEOS-Chem 14.1.0
  ...an="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry benchmark simulations |Chemistry
  83 KB (11,024 words) - 16:10, 5 October 2023
• Benchmark/GEOS-Chem 12.9.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.9.0|GEOS-Chem 12.9.0]]. !colspan="2" bgcolor="#CCFFFF"|Updates that WILL AFFECT the full-chemistry simulation
  114 KB (16,240 words) - 11:56, 15 July 2020
• Benchmark/GEOS-Chem 12.8.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.8.0|GEOS-Chem 12.8.0]]. !colspan="2" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
  148 KB (20,511 words) - 17:29, 25 June 2020
• GEOS-Chem v8-03-01
  # [[New isoprene scheme|Option to use Caltech isoprene chemistry]] ''(F. Paulot)'' ...of the GEOS-5 0.5 x 0.667 N. American and European [[GEOS-Chem nested grid simulations|Nested Grid]] simulation ''(A. van Donkelaar)''
  28 KB (4,078 words) - 15:45, 19 June 2019
• GEOS-Chem Adjoint v32
  ===== Update DEAD dust emissions for nested simulations and MERRA (v9-01-01) ===== ==== Update stratospheric chemistry and prod/loss rates (adj32_025) ====
  31 KB (4,615 words) - 23:07, 3 July 2013
• GEOS-Chem Adjoint User's Guide
  ...005, the adjoint was expanded to include a tagged CO simulation and a full chemistry simulation ''(Kopacz, et al. 2009a,b; Henze, et al. 2007,2009)''; an adjoin == Benchmark simulations ==
  80 KB (12,285 words) - 16:56, 18 June 2019
• GEOS-Chem Newsletter October 2010
  ::4) Please recall that the following types of GEOS-Chem simulations: ::* [[GEOS-Chem Adjoint|Adjoint simulations]]
  13 KB (2,052 words) - 20:24, 28 May 2014
• GEOS-Chem Newsletter March 2011
  ...ey to the GEOS-Chem Steering Committee! They are the co-chairs of the new Chemistry-Climate Working Group. === Climate-Chemistry Working Group ===
  20 KB (3,120 words) - 16:25, 28 March 2011
• MEGAN v2.1 plus Guenther 2012 biogenic emissions
  ...s not presently in the standard chemistry scheme - for use in specialized simulations and/or future inclusion in standard fullchem. Another under-the-hood change ...are small (< 2ppb for P > 800hPa) using the standard v9-1-3 (non-Caltech) chemistry scheme.</blockquote>
  33 KB (4,994 words) - 16:44, 15 October 2019
• GEOS-Chem v8-02-04
  #[[Linoz stratospheric ozone chemistry|LINOZ stratospheric ozone chemistry]] ''(Dylan Jones group @ U. Toronto)'' ...de from v8-02-04 and used it in v8-02-01. I ran two GEOS-5 full chemistry simulations for 2007 and the output were consistent over the full year.
  33 KB (4,899 words) - 17:46, 15 November 2017
• Benchmark/GEOS-Chem 12.7.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.7.0|GEOS-Chem 12.7.0]]. !colspan="2" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
  53 KB (7,304 words) - 17:04, 13 February 2020
• Intel Fortran Compiler
  ''NOTE: Yuxuan Wang found that this option was useful for certain nested-grid simulations. See the [[#Optimization options for faster runs|this wiki post]] below fo ''NOTE: Yuxuan Wang found that this option was useful for certain nested-grid simulations. See the [[#Optimization options for faster runs|this wiki post]] below fo
  55 KB (8,425 words) - 17:57, 24 October 2023
• Frequently asked questions about GEOS-Chem
  * [[Species in GEOS-Chem|What types of simulations can I run with GEOS-Chem?]] * [[Guide to GEOS-Chem simulations|types of GEOS-Chem simulations that I can run?]]
  5 KB (725 words) - 18:06, 20 September 2022
• GEOS-Chem Nested Model
  ...age provides information for users interested in the GEOS-Chem nested grid simulations. |Regional PM simulations over East Asia
  6 KB (810 words) - 15:31, 7 August 2020
• Benchmark/GEOS-Chem 12.6.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.6.0|GEOS-Chem 12.6.0]]. !colspan="2" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
  108 KB (15,559 words) - 16:40, 15 October 2019
• Benchmark/GEOS-Chem 12.5.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.5.0|GEOS-Chem 12.5.0]] ([https://doi.org/10.5281/zeno !colspan="2" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
  71 KB (9,614 words) - 16:19, 26 August 2020
• GEOS-Chem v8-01-01
  ...ow conditions). Other minor bugs are only relevant to a particular type of offline simulation. In any case, most of these issues have simple fixes. ==== Fixes for the full-chemistry simulation ====
  13 KB (1,925 words) - 18:05, 20 June 2017
• GEOS-Chem Adjoint v34
  ...od.F_for_offline_simulations | Bug fix in streets_anthro_mod.F for offline simulations]] Note that the GEOS-Chem adjoint does not support Bromine chemistry yet.
  15 KB (2,094 words) - 21:27, 24 July 2013
• GEOS-Chem Newsletter September 2010
  #[[Chemistry Issues|Oxidants and Chemistry Working Group]] ....seas.harvard.edu/mailman/listinfo/geos-chem-oxidants GEOS-Chem Oxidants & Chemistry]
  14 KB (2,161 words) - 18:18, 8 December 2016
• Aerosol-only simulation
  ...try mechanisms|Previous]] | [[CH4 simulation|Next]] | [[Guide to GEOS-Chem simulations]]''''' #[[GEOS-Chem chemistry mechanisms|Simulations using KPP-built mechanisms]]
  5 KB (472 words) - 21:01, 20 September 2022
• Tagged CO simulation
  ...mulation|Previous]] | [[Tagged O3 simulation|Next]] | [[Guide to GEOS-Chem simulations]]''''' #[[GEOS-Chem chemistry mechanisms|Simulations using KPP-built mechanisms]]
  13 KB (1,970 words) - 17:33, 24 October 2023
• GEOS-Chem v11-01 HP Validation
  ...with all components on using default GCHP run directory settings. For all simulations, the following setup is used: | Heterogeneous Chemistry
  17 KB (2,711 words) - 18:58, 10 May 2019
• GEOS-Chem Adjoint
  ...005, the adjoint was expanded to include a tagged CO simulation and a full chemistry simulation; an adjoint of GEOS-Chem v7 was also developed in the following * KPP solver for gas-phase chemistry (as in GCv8-02-03)
  54 KB (8,455 words) - 16:52, 29 February 2024
• GEOS-Chem Newsletter May 2010
  # [[New isoprene scheme|Option to use Caltech isoprene chemistry]] ''(F. Paulot)'' ...of the GEOS-5 0.5 x 0.667 N. American and European [[GEOS-Chem nested grid simulations|Nested Grid]] simulation ''(A. van Donkelaar)''
  11 KB (1,703 words) - 15:44, 19 June 2019
• GEOS-Chem Newsletter Winter 2012
  ...eral GC development tasks (i.e. code merging, generating 1-month benchmark simulations, user support, documentation, etc.). ...CO3.2C_GLPAN_bug_in_standard_mechanism|Fix for GLCO3/GLPAN bug in standard chemistry mechanism]] (by Fabien Paulot). This fixes a typo in the chemical mechanis
  22 KB (3,410 words) - 18:27, 8 December 2016
• ISORROPIA II
  :Please see [http://acmg.seas.harvard.edu/geos/wiki_docs/chemistry/GCISO_Debug_Report.pdf this attached report] that documents my replication ...v8-03-01#Bug fix in ISORROPIA for offline aerosol|Bug fix in ISORROPIA for offline aerosol]]
  28 KB (4,263 words) - 17:37, 14 January 2020
• Leaf area indices in GEOS-Chem
  ...error when using the Yuan-processed MODIS LAI data in GEOS-Chem "Classic" simulations. HEMCO cannot locate the proper bounding timestamps for the interpolation. ...re/hcoio_read_std_mod.F90</tt>, which is only used for GEOS-Chem "Classic" simulations. The search algorithm was continuing to look for timestamps further back i
  33 KB (5,406 words) - 21:11, 20 November 2023
• Bugs and fixes in GEOS-Chem v7 and v8
  ...ix for GEOS-5 nested grid simulations|Transport fix for GEOS-5 nested grid simulations]] ...d at midpoint of chemistry timestep|Photolysis now computed at midpoint of chemistry timestep]]
  9 KB (1,581 words) - 20:46, 2 January 2019
• FlexGrid
  ...rology field or nested grid, users would have to process meteorology files offline and update several areas of the GEOS-Chem source code to recognize the new # GEOS-Chem boundary conditions for use in nested grid simulations
  21 KB (2,963 words) - 05:45, 8 October 2023
• GEOS-Chem Newsletter September 2009
  * [[Chemistry Issues|Oxidants and Chemistry Working Group]] Mat Evans is going to set up a telecon to discuss isoprene chemistry in GEOS-Chem. The telecon will take place on September 28th, 2009 at 1200
  7 KB (1,046 words) - 18:16, 8 December 2016
• Benchmark/GEOS-Chem 12.3.2
  This page includes information about benchmark simulations for [[GEOS-Chem 12#12.3.2|GEOS-Chem 12.3.2]]. !colspan="2" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
  44 KB (6,246 words) - 13:27, 28 May 2019
• Coupling GEOS-Chem with RRTMG
  ...fect (DRE) output for both the longwave and shortwave. This alternative to offline coupling allows better temporal resolution in the RT calculations and provi |[http://atmoschem.mit.edu/ Atmospheric Chemistry, Massachusetts Institute of Technology]
  26 KB (3,839 words) - 13:33, 8 October 2020
• GEOS-Chem Adjoint v33
  ...BC_fix_to_support_offline_simulation_and_AOD_.28v33h.29| BC fix to support offline simulation and AOD]] ===== BC fix to support offline simulation and AOD (v33h) =====
  11 KB (1,672 words) - 23:06, 3 July 2013
• GEOS-Chem v8-02-01
  CHEMISTRY RELEASE date May 26, 2009. #Glyoxal chemistry ''(May Fu)'' ('''''NOTE: This is an option which is turned off by default''
  15 KB (2,286 words) - 17:40, 15 November 2017
• GEOS-Chem v8-01-04
  The following benchmark simulations have been done with a few different versions of GEOS-5 meteorology: ...tration from ~12 x 10⁵ to ~11 x 10⁵ molecules/cm3 in simulations that he had performed. '''''Therefore the "quick fix" is probably the majo
  23 KB (3,442 words) - 17:39, 15 November 2017
• Benchmark/GEOS-Chem 12.4.0
  This page includes information about all benchmark simulations for [[GEOS-Chem 12#12.4.0|GEOS-Chem 12.4.0]]. !colspan="2" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
  96 KB (13,416 words) - 13:11, 10 October 2019
• GEOS-Chem Newsletter Spring 2012
  #*Several minor bug fixes not affecting the full-chemistry simulation ''([[GEOS-Chem Support Team]], aka GCST)'' #*Bug fix in David Streets emissions for offline simulation ''(F. Paulot, Harvard)''
  20 KB (3,272 words) - 18:20, 20 May 2014
• GEOS-Chem Newsletter October 2009
  * [[Chemistry Issues|Oxidants and Chemistry Working Group]] * Updated CH4 offline simulation (K. Wecht, C. Pickett-Heaps)
  9 KB (1,417 words) - 15:20, 19 June 2019
• GEOS-Chem v8-02-03
  # Updated CH4 offline simulation (K. Wecht, C. Pickett-Heaps) ...constant. With time, this would propagate problems through out the whole chemistry.
  23 KB (3,379 words) - 17:43, 15 November 2017
• Steps to setup new nested domains
  * Third, make sure the input data for offline emissions and emission-related files are ready for HEMCO. My understanding ...re on this below), turn on emissions/chemistry/deposition to test the full chemistry runs.
  3 KB (559 words) - 22:19, 11 January 2019
• GEOS-Chem v7-04-13
  # Offline H2/HD simulation (cf. Lyatt Jaegle et al) ...correct? We didn't notice this until we were running multi-processor 2x2.5 simulations on different servers.
  6 KB (1,003 words) - 18:22, 20 June 2017
• GEOS-Chem v8-01-02
  ...: Module <tt>upbdflx_mod.F</tt> was removed from GEOS-Chem. Stratospheric chemistry is now done in <tt>strat_chem_mod.F90</tt>.'''''</span> :I was doing some GEOS-Chem simulations with a non-standard set of tracers, and I noticed that some of my emissions
  31 KB (4,189 words) - 15:54, 16 November 2017
• GEOS-Chem Adjoint v31
  ! - now add support for nested grid with offline CO (zhe, 02/04/11) ! - now emit biomass burning emissions for offline CO throughout
  5 KB (803 words) - 00:40, 7 January 2012
• GEOS-Chem Adjoint v35
  ...CAC, Natural NH3 (GEIA) and Volcano SO2 emissions are not yet supported. Offline CH4 is supported. Tagged CO requires revision of archived OH and O3 produc ...ly affect sensitivities with respect to emissions, particularly for longer simulations. The consequence was that NOx sensitivities in particular were being unde
  24 KB (3,507 words) - 16:06, 5 June 2022