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|<p><font color="#FFFFFF" size="+3">'''GEOS&#150;Chem Wiki'''</font></p>
 
|<p><font color="#FFFFFF" size="+3">'''GEOS&#150;Chem Wiki'''</font></p>
  
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----
  
 
<p align="center"><big>'''GEOS-Chem Community Mission: to advance understanding of human and natural influences on the environment<br>through a comprehensive, state-of-the-science, readily accessible global model of atmospheric composition.'''</big></p>
 
<p align="center"><big>'''GEOS-Chem Community Mission: to advance understanding of human and natural influences on the environment<br>through a comprehensive, state-of-the-science, readily accessible global model of atmospheric composition.'''</big></p>
  
The [http://acmg.seas.harvard.edu/geos/ GEOS–Chem model] is a global 3-D model of atmospheric composition driven by assimilated meteorological observations from the Goddard Earth Observing System (GEOS) of the [http://gmao.gsfc.nasa.gov/ NASA Global Modeling and Assimilation Office]. It is applied by [http://acmg.seas.harvard.edu/geos/geos_people.html research groups around the world] to a wide range of atmospheric composition problems, Central management and support of the model is provided by the [http://acmg.seas.harvard.edu/index.html Atmospheric Chemistry Modeling Group at Harvard University.]
+
The [http://acmg.seas.harvard.edu/geos/ GEOS–Chem model] is a global 3-D model of atmospheric composition driven by assimilated meteorological observations from the Goddard Earth Observing System (GEOS) of the [http://gmao.gsfc.nasa.gov/ NASA Global Modeling and Assimilation Office]. It is applied by [http://acmg.seas.harvard.edu/geos/geos_people.html research groups around the world] to a wide range of atmospheric composition problems. Central management and support of the model is provided by the [http://acmg.seas.harvard.edu/index.html Atmospheric Chemistry Modeling Group at Harvard University] and by the [https://sites.wustl.edu/acag/ Atmospheric Composition Analysis Group at Washington University].
 
+
This wiki is meant to facilitate communication between GEOS-Chem users and developers. If this is '''your first time here''', check out [[Features of the GEOS-Chem public wiki|the features page]]. If you would like to contribute to the wiki, please register as a user by clicking ''create account'' at the top right corner of this page.
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New information is continually being added to the wiki, so please check back here often, or even better, [[Features_of_the_GEOS-Chem_public_wiki#Let_the_GEOS-Chem_wiki_inform_you_of_recent_changes.21|subscribe to the recent changes' RSS feed]]: you will not miss a discussion!
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|}
  
 
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{|border="1" width="1000px" bordercolor="#000000" cellspacing="0" cellpadding="5"
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|width="334px"|'''Getting started w/ GEOS-Chem:'''
 
|width="333px"|'''[[GEOS-Chem welcome letter for new users|Welcome letter for new users]]'''
 
|width="333px"|'''[[GEOS-Chem basics]]'''
 
  
|-valign="top" bgcolor="#CCFFFF" align="center"
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|-valign="top"
|'''Current public release:'''
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|colspan="3" align="center" bgcolor="#CCCCCC"|'''<font size="+2">[[GEOS-Chem overview]]</font>'''
|'''[[GEOS-Chem v10-01]]'''
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|-valign="top"
|'''[[GEOS-Chem v10-01 benchmark history|v10-01 benchmark history]]'''
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|width="225px" align="center"|<font size="+2">[[GEOS-Chem versions|Past releases]]</font>
 +
|width="450px" align="center" bgcolor="#CCFFFF"|<font size="+2">[[GEOS-Chem 13.2.1|'''Current release: GEOS-Chem 13.2.1''']]</font>
 +
|width="225px" align="center"|<font size="+2">[[GEOS-Chem model development_priorities|Future releases]]</font>
  
|-valign="top" align="center"
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|}
|'''Version in development:'''
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|'''[[GEOS-Chem v11-01]]'''
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|'''[[GEOS-Chem v11-01 benchmark history|v11-01 benchmark history]]'''
+
  
|-valign="top" align="center"
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== News ==
|'''Version for HPC environments:'''
+
*'''13 Sep 2021:''' Read the [[Media:GEOS-Chem_Newsletter_Fall_2021.pdf|GEOS-Chem Newsletter, Fall 2021]]
|'''[[GEOS-Chem HP]]'''
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*'''10 Sep 2021:''' [[GEOS-Chem 13.2.1]] is now available!
|'''[[GEOS-Chem HP Dev Kit]]'''
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*'''11 Dec 2020:''' A [https://scholar.google.com/citations?user=ho-sNj4AAAAJ GEOS-Chem Google Scholar page] is now available
 +
:::::Click 'Follow' to be notified of new publications. Contact [mailto:gxl642@student.bham.ac.uk Gongda Lu] with issues or questions.
 +
*'''02 Apr 2020:''' The GEOS-Chem Youtube Channel has 100+ subscribers and a new URL: <tt>'''https://youtube.com/c/geoschem'''</tt>
 +
*'''03 Feb 2020:''' View our GEOS-Chem "dry-run" tutorial at our [http://youtube.geos-chem.org GEOS-Chem Youtube channel]
 +
*'''17 Sep 2019:''' NASA/GMAO is now producing [https://gmao.gsfc.nasa.gov/weather_prediction/GEOS-CF/ GEOS chemical forecasts (GEOS-CF)] using GEOS-Chem coupled to the NASA/GEOS ESM
  
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For access to all past GEOS-Chem newsletters, visit [[GEOS-Chem newsletters|this page]].
|'''List of publications:'''
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|'''[http://acmg.seas.harvard.edu/geos/geos_pub.html Refer to this page]'''
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|
+
  
|}
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== Documentation ==
  
<br>
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=== GEOS-Chem manuals and tutorials ===
  
{|border="1" width="1000px" bordercolor="#000000" cellspacing="0" cellpadding="5"
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The table below lists the various manual pages for GEOS-Chem and its related software packages.
  
|-height="50" bgcolor="#00AAAA" align="center"
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{| border=1 cellpadding=5 cellspacing=0
|colspan="2"|<p><font color="#FFFFFF" size="+2">'''General information about GEOS-Chem'''</font></p>
+
  
|-valign="top" bgcolor="#CCCCCC"
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|-valign="top"
!width="1000px" colspan="2"|<big>Introduction to GEOS-Chem and the International GEOS-Chem User Community</big>
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!width="200px" bgcolor="#CCCCCC"|Item
 +
!width="400px" bgcolor="#CCCCCC"|Link
 +
!width="400px" bgcolor="#CCCCCC"|Description
  
 
|-valign="top"
 
|-valign="top"
|width="500px"| <!-- Intro and overview -->
+
|'''GEOS-Chem Classic'''
* [http://acmg.seas.harvard.edu/geos/geos_overview.html Overview of GEOS-Chem and its user community]
+
|[[Getting Started with GEOS-Chem]] (wiki page)
** [http://acmg.seas.harvard.edu/geos/geos_people.html GEOS-Chem People & Projects]
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*NOTE: Will be ported to geos-chem.readthedocs.io soon
** [[GEOS-Chem Support Team]]
+
|GEOS-Chem single-node implementation<br>(using 1-64 computational cores)
** [[GEOS-Chem newsletters]]
+
** [http://acmg.seas.harvard.edu/geos/geos_new_developments.html Recommendations for offering co-authorships to GEOS-Chem developers]
+
** [http://acmg.seas.harvard.edu/geos/geos_dev_history.html GEOS-Chem code development history]
+
* [[GEOS-Chem basics|Basic information about getting set up with GEOS-Chem]]
+
** [[GEOS-Chem welcome letter for new users]]
+
** [http://acmg.seas.harvard.edu/geos/word_pdf_docs/resources_guidelines_tips.pdf User Resources, Code Development Guidelines, and Debugging Tips]
+
** [[Features of the GEOS-Chem public wiki]]
+
** [[Customizing your GEOS-Chem Wiki Settings]]
+
** [http://acmg.seas.harvard.edu/geos/geos_search.html GEOS-Chem Search Engines]
+
|width="500px"| <!-- Steering committee etc -->
+
* [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee]
+
** [[GEOS-Chem model development priorities]]
+
* [http://acmg.seas.harvard.edu/geos/geos_working_groups.html GEOS-Chem Working Groups]
+
** [[GEOS-Chem Adjoint|Adjoint Model and Data Assimilation Working Group]]
+
** [[Aerosols Working Group]]
+
** [[Carbon Cycle Working Group]]
+
** [[Chemistry-Climate Working Group]]
+
** [[GEOS-Chem High Performance Working Group]]
+
** [[Hg and POPs Working Group]]
+
** [[Organics Working Group]]
+
** [[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
** [[Nested Model Working Group]]
+
** [[Sources and Surface Uptake Working Group]]
+
** [[Transport Working Group]]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
|-valign="top"
!width="1000px" colspan="2"|<big>Getting started with GEOS-Chem</big>
+
|'''GCHP'''
 +
|[https://gchp.readthedocs.io gchp.readthedocs.io]
 +
|GEOS-Chem multi-node "high performance" implementation<br>(using 100's - 1000's of computational cores)
  
 
|-valign="top"
 
|-valign="top"
|
+
|'''GEOS-Chem on the cloud'''
* [[GEOS-Chem basics]] (e.g. tutorials, user guides, etc.)
+
|[http://cloud.geos-chem.org cloud.geos-chem.org]
* [[Frequently asked questions about GEOS-Chem]]
+
|Instructions for running GEOS-Chem on the Amazon Web Services EC2 cloud-computing platform
* [[Minimum system requirements for GEOS-Chem]]
+
* [[Downloading GEOS-Chem source code and data]]
+
* [[GEOS-Chem performance]]
+
* [[Creating GEOS-Chem run directories]]
+
* [[GEOS-Chem coding style guide]]
+
* GEOS-Chem [[GEOS-Chem horizontal grids|horizontal grids]] and [[GEOS-Chem vertical grids|vertical grids]]
+
|
+
* [[Initial conditions for GEOS-Chem]]
+
* [[Centralized chemistry time step]]
+
* [[GEOS-Chem coding and debugging#GEOS-Chem debugging tips|Tips on how to debug GEOS-Chem effectively]]
+
* [[Parallelizing GEOS-Chem]] with the OpenMP directives
+
* [[Common GEOS-Chem error messages]]
+
* [[Adding tracers to GEOS-Chem|Adding tracers to GEOS-Chem (v10-01 and prior)]]
+
* [[GEOS-Chem_species_database#Adding_new_species_to_the_GEOS-Chem_species_database|Adding species to GEOS-Chem (v11-01 and later)]]
+
* [[Adding passive species to GEOS-Chem]]
+
|}
+
  
<br>
+
|-valign="top"
 +
|'''WRF-GC'''
 +
|[http://wrf.geos-chem.org wrf.geos-chem.org]
 +
|GEOS-Chem coupled to the WRF GCM
  
{|border="1" width="1000px" bordercolor="#000000" cellspacing="0" cellpadding="5"
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|-valign="top"
 +
|'''HEMCO'''
 +
|[https://hemco.readthedocs.io hemco.readthedocs.io]
 +
|The Harmonized Emissions Component
  
|-height="50" bgcolor="#00AAAA" align="center"
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|-valign="top"
|colspan="2"|<p><font color="#FFFFFF" size="+2">'''GEOS-Chem Code Developers' Forums'''</font></p>
+
|'''GCPy'''
 +
|[https://gcpy.readthedocs.io gcpy.readthedocs.io]
 +
|The GEOS-Chem Python Toolkit
  
|-valign="top" bgcolor="#CCCCCC"
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|-valign="top"
!width="500px"|<big>Coding</big>
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|'''KPP-for-GEOS-Chem'''
!width="500px"|<big>Diagnostics</big>
+
|[https://kpp.readthedocs.io kpp.readthedocs.io]
 +
|The Kinetic PreProcessor (KPP), customized for GEOS-Chem
  
 
|-valign="top"
 
|-valign="top"
| <!-- Coding -->
+
|'''GEOS-Chem Adjoint'''
* Software development
+
|[[GEOS-Chem Adjoint]] (wiki page)
** [[GEOS-Chem versions under development]]
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|The GEOS-Chem adjoint model<br> (NOTE: maintained separately from GEOS-Chem)
** [[Version control with Git]]
+
* [[GEOS-Chem coding and debugging]]
+
** [[GEOS-Chem coding style guide]]
+
** [[Bugs and fixes|List of GEOS-Chem bugs and in which version they were resolved]]
+
** [[Currently unresolved issues in GEOS-Chem]]
+
** [[Known issues caused by compiler bugs|Known GEOS-Chem issues caused by compiler bugs]]
+
** [[Machine issues & portability|Machine issues and portability]]
+
** [[Debugging with the GEOS-Chem unit tester]]
+
** [[Common GEOS-Chem error messages]]
+
** [[GEOS-Chem_coding_and_debugging#Reporting_GEOS-Chem_bugs_to_the_GEOS-Chem_Support_Team|Reporting GEOS-Chem bugs to the GCST]]
+
* [[GEOS-Chem performance]]
+
** [[Profiling GEOS-Chem]]
+
** [[Passing array arguments efficiently in GEOS-Chem]]
+
** [[Floating point math issues]]
+
** [[GEOS-Chem performance#7-day time tests|Results from 7-day timing tests]]
+
| <!-- Diagnostics -->
+
* [[List of diagnostics for v11-01|List of current GEOS-Chem diagnostics]]
+
* [[The HEMCO User's Guide#Diagnostics|Archiving diagnostics from HEMCO to netCDF files]]
+
* [[Diagnostic time step]]
+
* [[Mass Flux (ND24/25/26)]]
+
* [[Additional diagnostics]]
+
  
|-valign="top" bgcolor="#CCCCCC"
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|-valign="top"
!width="500px"|<big>Emissions</big>
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|'''GEOS-Chem Videos'''
!width="500px"|<big>Chemistry</big>
+
|[https://youtube.com/c/geos-chem youtube.com/c/geos-chem]
 +
|Tutorial videos for GEOS-Chem, GCHP, HEMCO, GCPy, etc., and recordings of GEOS-Chem meeting sessions
  
 
|-valign="top"
 
|-valign="top"
|<!-- Emissions -->
+
|'''GEOS-Chem Guides'''
* [[HEMCO|HEMCO emissions component]]
+
|[[GEOS-Chem overview#GEOS-Chem Guides|GEOS-Chem Guides]] (wiki page)
** [[HEMCO data directories]]
+
|Short manuals giving a deeper dive into various GEOS-Chem topics (such as compilers, netCDF, diagnostics, etc.)
** [[The HEMCO User's Guide]]
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** [[Implementation of HEMCO in GEOS-Chem]]
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* Emissions categories
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** [[Aerosol emissions]]
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**( [[Aircraft emissions]]
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** [[Anthropogenic emissions]]
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** [[Scale factors for anthropogenic emissions]]
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** [[Biofuel emissions]]
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** [[Biogenic emissions]]
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** [[Biomass burning emissions]]
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** [[Lightning NOx emissions]]
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** [[Ship emissions]]
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** [[Soil NOx emissions]]
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** [[Volcanic SO2 emissions from Aerocom|Volcanic emissions]]
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** [[Historical and Future Emissions|Historical and future emissions]]
+
|<!-- Chemistry -->
+
* [[GEOS-Chem chemistry mechanisms]]
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** [[GEOS-Chem chemistry mechanisms#Stratospheric chemistry|Stratopsheric chemistry options]]
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** [[GEOS-Chem chemistry mechanisms#Specialty simulations|Specialty simulations (aka "offline simulations")]]
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** [[Photolysis mechanism|Photolysis mechanisms used in GEOS-Chem]]
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* [[Species in GEOS-Chem]]
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** [[GEOS-Chem species database]]
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** [[Physical properties of GEOS-Chem species]]
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** [[GEOS-Chem species units]]
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** [[Species indexing in GEOS-Chem]]
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* Other resources
+
** [[FlexChem]]
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** [[Chemistry Issues]]
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** [[Process Analysis Diagnostics]]
+
** [[Linking GEOS-Chem to CMAQ]]
+
** [[Coupling GEOS-Chem with RRTMG]]
+
** [[DSMACC chemical box model]]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
|}
!width="500px"|<big>Dynamics</big>
+
!width="500px"|<big>Deposition</big>
+
  
|-valign="top"
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=== General information about GEOS-Chem ===
| <!-- Dynamics -->
+
* [[Advection scheme TPCORE]]
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* [[Boundary layer mixing]]
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* [[Cloud convection]]
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* [[Dynamic tropopause]]
+
| <!-- Deposition -->
+
* [[Dry deposition]]
+
**[[Leaf area indices in GEOS-Chem]]
+
**[[Olson land map]]
+
* [[Wet deposition]]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
The table below lists where you can find general information about GEOS-Chem.
!width="500px"|<big>Aerosols</big>
+
 
!width="500px"|<big>Met fields</big>
+
{| border=1 cellpadding=5 cellspacing=0
  
 
|-valign="top"
 
|-valign="top"
| <!-- Aerosols -->
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!width="200px" bgcolor="#CCCCCC"|Item
* [[Aerosol-only simulation]]
+
!width="400px" bgcolor="#CCCCCC"|Link
* [[Aerosol optical properties]]
+
!width="400px" bgcolor="#CCCCCC"|Description
* [[Aerosol thermodynamical equilibrium]]
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* [[Carbonaceous aerosols]]
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* [[Mineral dust aerosols]]
+
* [[Secondary organic aerosols]]
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* [[Sea salt aerosols]]
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* [[Sulfate aerosols]]
+
* Aerosol Microphysics
+
** [[APM aerosol microphysics|APM]]
+
** [[TOMAS aerosol microphysics|TOMAS]]
+
| <!-- Met fields -->
+
* [[Overview of GMAO met data products]]
+
** [[Version history of GMAO met data products]]
+
** [[Available met data for nested grid simulations]]
+
* [[List of reprocessed met fields]]
+
* [[MERRA-2|GMAO MERRA-2]]
+
** [[List of MERRA-2 met fields|List of MERRA-2 met fields used by GEOS-Chem]]
+
** [[MERRA-2 implementation details|Implementing MERRA-2 into GEOS-Chem]]
+
* [[GEOS-FP|GMAO GEOS-FP]]
+
** [[List of GEOS-FP met fields|List of GEOS-FP met fields used by GEOS-Chem]]
+
** [[GEOS-FP implementation details|Implementing GEOS-FP into GEOS-Chem]]
+
* [[MERRA|GMAO MERRA "reanalysis"]]
+
** [[List of MERRA met fields|List of MERRA met fields used by GEOS-Chem]]
+
** [[MERRA implementation details|Implementing MERRA into GEOS-Chem]]
+
* [[GEOS-5|GMAO GEOS-5.2.0]]
+
** [[List of GEOS-5 met fields|List of GEOS-5.2.0 met fields used by GEOS-Chem]]
+
** [[GEOS-5 issues|Issues with GEOS-5.2.0 met data]]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
|-valign="top"
!width="500px"|<big>Nested grid simulations</big>
+
|'''GEOS-Chem website'''
!width="500px"|<big>Earth System Modeling Framework</big>
+
|[http://www.geos-chem.org geos-chem.org]
 +
|Website that links to GEOS-Chem information and resources
  
 
|-valign="top"
 
|-valign="top"
| <!-- Nested grid -->
+
|'''Welcome Letter'''
* [[GEOS-Chem nested grid simulations]]
+
|[[GEOS-Chem welcome letter for new users]] (wiki page)
* [[Setting up GEOS-Chem nested grid simulations]]
+
|A welcome letter for new users of GEOS-Chem
* [[Available met data for nested grid simulations]]
+
* [http://acmg.seas.harvard.edu/geos/wiki_docs/nested_grids/geos_data_downloads.pdf Protocol for nested-grid data downloads]
+
* [[Steps to setup new nested domains]]
+
* [[GEOS-Chem nested model publications]]
+
| <!-- ESMF -->
+
* [[Installing ESMF and other required libraries]]
+
* [[Code development with the Earth System Model Framework]]
+
* [[Automatic documentation with protex|Generating automatic LaTeX documentation with protex]]
+
** [http://frodo.elon.edu/tutorial/tutorial/tutorial.html Web-based LaTeX tutorial]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
|-valign="top"
!width="500px"|<big>Benchmarking and Evaluation</big>
+
|'''GEOS-Chem Overview'''
!width="500px"|<big>Related projects</big>
+
|[[GEOS-Chem overview]] (wiki page)
 +
|A page with linking to many GEOS-Chem topics.
  
 
|-valign="top"
 
|-valign="top"
| <!-- Benchmarks -->
+
|'''GEOS-Chem Narrative'''
* [http://acmg.seas.harvard.edu/geos/geos_benchmark.html General info about GEOS-Chem benchmark simulations]
+
|[http://geos-chem.org/geos_chem_narrative.html geos-chem.org/geos_chem_narrative.html]
* [http://acmg.seas.harvard.edu/geos/geos_1yr_plots.html List of GEOS-Chem 1-year benchmark simulations]
+
|A narrative descrption of GEOS-Chem that you can include in scientific papers (plus instructions for citing GEOS-Chem)
* [[Mean OH concentration]]
+
* [ftp://ftp.as.harvard.edu/gcgrid/geos-chem/1yr_benchmarks/ FTP site with output from 1-year GEOS-Chem benchmark simulations]
+
* [[GEOS-Chem participation in community intercomparisons]]
+
* [[Satellite_Specifications_Table|Satellite Instrument Specifications Table]]
+
| <!-- Projects -->
+
* [[GEOS-Chem HP]]
+
* [[GEOS-Chem Adjoint]]
+
* [[GEOS-Chem Near-Real-Time Simulations]]
+
* [[FlexAOD]]
+
|}
+
  
<br>
+
|-valign="top"
 +
|'''GEOS-Chem New Developments'''
 +
|[http://geos-chem.org/geos_new_developments.html geos-chem.org/geos_new_developments.html]
 +
|A list of significant GEOS-Chem updates and the developers who worked on them
  
{|border="1" width="1000px" bordercolor="#000000" cellspacing="0" cellpadding="5"
+
|-valign="top"
 +
|'''GEOS-Chem Steering Committee (GCSC)'''
 +
|[http://www.geos-chem.org/geos_steering_cmte.html geos-chem.org/geos_steering_cmte.html]
 +
|A listing of current GCSC members and minutes from GCSC meetings
  
|-height="50" bgcolor="#00AAAA" align="center"
+
|-valign="top"
|colspan="2"|<p><font color="#FFFFFF" size="+2">'''Reference Section'''</font></p>
+
|'''GEOS-Chem Working Groups'''
 
+
|[http://www.geos-chem.org/geos_working_groups.html geos-chem.org/geos_working_groups.html]
|-valign="top" bgcolor="#CCCCCC"
+
|A listing of GEOS-Chem Working Groups and Working Group Co-Chairs
!width="500px"|<big>IDL</big>
+
!width="500px"|<big>GAMAP</big>
+
  
 
|-valign="top"
 
|-valign="top"
| <!-- IDL -->
+
|'''GEOS-Chem Versions'''
* [http://www.harrisgeospatial.com/docs/using_idl_home.html Using IDL (Harris Geospatial Solutions site)]
+
|[[GEOS-Chem versions]] (wiki page)
* [http://idlastro.gsfc.nasa.gov/idl_html_help/Structures.html Structures in IDL]
+
|A listing of GEOS-Chem versions (with links for more information)
* [http://idlastro.gsfc.nasa.gov/idl_html_help/Pointers.html Pointers in IDL]
+
* [http://idlastro.gsfc.nasa.gov/idl_html_help/Overview_of_Mathematics_in_IDL.html Overview of Mathematics in IDL]
+
* [http://idlastro.gsfc.nasa.gov/homepage.html IDL Astronomy User's Library]
+
* [http://fermi.jhuapl.edu/s1r/idl/idl.html JHU/APL/S1R IDL routines page]
+
* [http://cow.physics.wisc.edu/~craigm/idl/idl.html Craig Markwardt's IDL library]
+
* [[Reading binary files in IDL]]
+
| <!-- GAMAP -->
+
* [http://acmg.seas.harvard.edu/gamap/ GAMAP web page]
+
* [http://acmg.seas.harvard.edu/gamap/doc/ GAMAP on-line users' guide]
+
* [[GAMAP bugs and fixes]]
+
* [[GAMAP tips and tricks]]
+
**[[General GAMAP usage]]
+
**[[TVMAP cheat sheet]]
+
**[[File I/O with GAMAP]]
+
***[http://acmg.seas.harvard.edu/gamap/doc/timeseries_brief_tutorial.pdf Working with timeseries output in GAMAP]
+
**[[Color and graphics with GAMAP]]
+
*** [http://acmg.seas.harvard.edu/geos/wiki_docs/gamap/gamap_color_table_file.pdf Loading Color Tables in GAMAP v2.12]
+
*** [http://acmg.seas.harvard.edu/forum_files/cdh_ColorInIDL.pdf Working with color in IDL by Chris Holmes]
+
**[[Regridding with GAMAP]]
+
**[[Date and time computations with GAMAP]]
+
**[[Text manipulation with GAMAP]]
+
  
|-valign="top" bgcolor="#CCCCCC"
+
|-valign="top"
!width="500px"|<big>Fortran</big>
+
|'''GEOS-Chem Species List'''
!width="500px"|<big>Perl</big>
+
|[[Guide to species in GEOS-Chem]] (wiki page)
 +
|A listing of the species used in the GEOS-Chem chemistry mechanisms
  
 
|-valign="top"
 
|-valign="top"
|<!-- Fortran -->
+
|'''Requesting Support'''
* [[Intel Fortran Compiler]]
+
|[[Submitting GEOS-Chem support requests]] (wiki page)
** [http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/main_for_lin_v11.pdf Version 11.1]
+
|Instructions for creating GEOS-Chem support requests using the Github issue trackers
** [http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/main_for_lin_v12.pdf Version 12.1]
+
** [https://nf.nci.org.au/facilities/software/intel-ct/13.2.146/Documentation/en_US/compiler_f/main_for/index.htm#GUID-81DC012F-20D6-46B1-A524-BFAC4B6F7747.htm#GUID-81DC012F-20D6-46B1-A524-BFAC4B6F7747 Version XE 13.1]
+
** [https://software.intel.com/en-us/compiler_15.0_ug_f Version 15.0]
+
* [[PGI Fortran compiler]]
+
**[http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/pgiug.pdf User Guide]
+
**[http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/pgifortref.pdf Reference Guide]
+
* [[GNU Fortran compiler]]
+
*[[GEOS-Chem basics#Fortran resources|Fortran tutorials]]
+
|<!-- Perl -->
+
* [http://www.perl.com Perl.com]
+
* [http://www.perl.org/books/beginning-perl/ ''Beginning Perl'' by Simon Cozens (free online book)]
+
* [http://backpan.perl.org/authors/id/Q/QU/QUONG/perlin20.html Perl in 20 pages]
+
* [http://www.enginsite.com/Library-Robert%27s-Perl-Tutorial.htm MediaWiki User's Guide]
+
* [http://www.cpan.org/ Comprehensive Perl Archive Network (CPAN.org)]
+
 
+
|-valign="top" bgcolor="#CCCCCC"
+
!width="500px"|<big>R</big>
+
!width="500px"|<big>Python</big>
+
  
 
|-valign="top"
 
|-valign="top"
|<!-- R -->
+
|'''Submitting code or data'''
*[http://www.r-project.org/ The R project for statistical computing]
+
|[[Submitting updates for inclusion in GEOS-Chem]] (wiki page)
*[http://journal.r-project.org/ The R journal]
+
|Instructions for submitting new source code or data updates to be included into GEOS-Chem.
*[http://www.mayin.org/ajayshah/KB/R/index.html R by example]
+
*[[Using R to analyze GEOS-Chem data]]
+
|<!-- Python -->
+
*[[Python code for GEOS-Chem]]
+
*[http://www.python.org Python.org]: Main site for all things Python
+
*[http://docs.python.org/2/tutorial/ Python.org Tutorial]
+
*[http://wiki.python.org/moin/BeginnersGuide/Programmers PythonWiki.org: List of tutorials and resources]
+
*[https://developers.google.com/edu/python/ Google's Python tutorial]
+
  
|-valign="top" bgcolor="#CCCCCC"
 
!width="500px"|<big>NCAR Command Language (NCL)</big>
 
!width="500px"|<big>Wiki documentation</big>
 
 
|-valign="top"
 
|<!-- NCL -->
 
* [http://www.ncl.ucar.edu/ NCL main page]
 
* [http://www.ncl.ucar.edu/Applications/ NCL applications]
 
* [http://www.ncl.ucar.edu/Document/ NCL documentation]
 
* [http://www.ncl.ucar.edu/Support/email_lists.shtml Sign up for NCL-Talk email list]
 
* [[NCL_tools_for_GEOS-Chem|NCL4GC: NCL tools for GEOS-Chem]]
 
|<!-- Wiki doc -->
 
* [[Sandbox]]
 
* [http://www.mediawiki.org/wiki/Manual:FAQ MediaWiki FAQ]
 
* [http://meta.wikimedia.org/wiki/Help:Contents MediaWiki User's Guide]
 
* [http://meta.wikimedia.org/wiki/Help:Wikitext Examples of Wiki markup text]
 
* [http://meta.wikimedia.org/wiki/Help:Reference_card One-page editing reference card]
 
* [http://www.mediawiki.org/wiki/Manual:Configuration_settings Configuration Settings list]
 
* [http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
 
 
|}
 
|}

Revision as of 21:42, 13 September 2021

GEOS–Chem Wiki


GEOS-Chem Community Mission: to advance understanding of human and natural influences on the environment
through a comprehensive, state-of-the-science, readily accessible global model of atmospheric composition.

The GEOS–Chem model is a global 3-D model of atmospheric composition driven by assimilated meteorological observations from the Goddard Earth Observing System (GEOS) of the NASA Global Modeling and Assimilation Office. It is applied by research groups around the world to a wide range of atmospheric composition problems. Central management and support of the model is provided by the Atmospheric Chemistry Modeling Group at Harvard University and by the Atmospheric Composition Analysis Group at Washington University.

GEOS-Chem overview
Past releases Current release: GEOS-Chem 13.2.1 Future releases

News

Click 'Follow' to be notified of new publications. Contact Gongda Lu with issues or questions.

For access to all past GEOS-Chem newsletters, visit this page.

Documentation

GEOS-Chem manuals and tutorials

The table below lists the various manual pages for GEOS-Chem and its related software packages.

Item Link Description
GEOS-Chem Classic Getting Started with GEOS-Chem (wiki page)
  • NOTE: Will be ported to geos-chem.readthedocs.io soon
GEOS-Chem single-node implementation
(using 1-64 computational cores)
GCHP gchp.readthedocs.io GEOS-Chem multi-node "high performance" implementation
(using 100's - 1000's of computational cores)
GEOS-Chem on the cloud cloud.geos-chem.org Instructions for running GEOS-Chem on the Amazon Web Services EC2 cloud-computing platform
WRF-GC wrf.geos-chem.org GEOS-Chem coupled to the WRF GCM
HEMCO hemco.readthedocs.io The Harmonized Emissions Component
GCPy gcpy.readthedocs.io The GEOS-Chem Python Toolkit
KPP-for-GEOS-Chem kpp.readthedocs.io The Kinetic PreProcessor (KPP), customized for GEOS-Chem
GEOS-Chem Adjoint GEOS-Chem Adjoint (wiki page) The GEOS-Chem adjoint model
(NOTE: maintained separately from GEOS-Chem)
GEOS-Chem Videos youtube.com/c/geos-chem Tutorial videos for GEOS-Chem, GCHP, HEMCO, GCPy, etc., and recordings of GEOS-Chem meeting sessions
GEOS-Chem Guides GEOS-Chem Guides (wiki page) Short manuals giving a deeper dive into various GEOS-Chem topics (such as compilers, netCDF, diagnostics, etc.)

General information about GEOS-Chem

The table below lists where you can find general information about GEOS-Chem.

Item Link Description
GEOS-Chem website geos-chem.org Website that links to GEOS-Chem information and resources
Welcome Letter GEOS-Chem welcome letter for new users (wiki page) A welcome letter for new users of GEOS-Chem
GEOS-Chem Overview GEOS-Chem overview (wiki page) A page with linking to many GEOS-Chem topics.
GEOS-Chem Narrative geos-chem.org/geos_chem_narrative.html A narrative descrption of GEOS-Chem that you can include in scientific papers (plus instructions for citing GEOS-Chem)
GEOS-Chem New Developments geos-chem.org/geos_new_developments.html A list of significant GEOS-Chem updates and the developers who worked on them
GEOS-Chem Steering Committee (GCSC) geos-chem.org/geos_steering_cmte.html A listing of current GCSC members and minutes from GCSC meetings
GEOS-Chem Working Groups geos-chem.org/geos_working_groups.html A listing of GEOS-Chem Working Groups and Working Group Co-Chairs
GEOS-Chem Versions GEOS-Chem versions (wiki page) A listing of GEOS-Chem versions (with links for more information)
GEOS-Chem Species List Guide to species in GEOS-Chem (wiki page) A listing of the species used in the GEOS-Chem chemistry mechanisms
Requesting Support Submitting GEOS-Chem support requests (wiki page) Instructions for creating GEOS-Chem support requests using the Github issue trackers
Submitting code or data Submitting updates for inclusion in GEOS-Chem (wiki page) Instructions for submitting new source code or data updates to be included into GEOS-Chem.