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The [http://www.as.harvard.edu/ctm/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://www.as.harvard.edu NASA Global Modeling and Assimilation Office]. It is applied by [http://www.as.harvard.edu/ctm/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://www.as.harvard.edu/ctm/ Atmospheric Chemistry Modeling Group] at Harvard University.
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|<p><font color="#FFFFFF" size="+3">'''GEOS-Chem Wiki'''</font></p>


This wiki is meant to facilitate communication between GEOS-Chem users and developers.  If you would like to contribute to the wiki, please register as a user by clicking the appropriate link above.
|}


<big><big>This site is under construction!  Not all links have been activated yet.  Please check back here frequently for the latest updates!</big></big>
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== General Information about GEOS-Chem ==
|-valign="top"
|


=== Overview ===
----
* [[GEOS-Chem programming staff]]
* [[Minimum system requirements for GEOS-Chem]]
* [[Downloading GEOS-Chem source code and data]]


=== Coding ===
<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>
* [[GEOS-Chem code development cycle]]
* [[Parallelizing GEOS-Chem]] with the OpenMP directives
* [[GEOS-Chem programming resources]] (e.g. tutorials, user guides, etc.)
* [[http://www.as.harvard.edu/chemistry/trop/geos/doc/style/ GEOS-Chem Programming Style Guide]]


=== Debugging ===
The [http://geos-chem.org 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 [https://geoschem.github.io/geos-chem-people-projects-map/ research groups around the world] to a wide range of atmospheric composition problems. Central management and support of the model is provided by the [https://acmg.seas.harvard.edu/ Atmospheric Chemistry Modeling Group at Harvard University] and by the [https://sites.wustl.edu/acag/ Atmospheric Composition Analysis Group at Washington University].
* [[GEOS-Chem Debugging Tips|Tips on how to debug GEOS-Chem effectively]]
* [[Reporting GEOS-Chem bugs]]
* [[Common GEOS-Chem error messages]]


== Code Developers' Forums ==
|}


These pages contain more specific information about coding issues, emissions, chemistry, met fields, and other aspects of GEOS-Chem.
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=== Coding ===
|-valign="top"
* [[GEOS-Chem versions under development]]
|colspan="3" align="center" bgcolor="#CCCCCC"|'''<font size="+2">[[GEOS-Chem overview]]</font>'''
* [[Machine issues & portability]]
|-valign="top"
* [[Bugs and fixes]]
|width="225px" align="center"|<font size="+2">[[GEOS-Chem versions|Past releases]]</font>
|width="450px" align="center" bgcolor="#CCFFFF"|<font size="+2">[[GEOS-Chem 14.5.0|'''Current release: GEOS-Chem 14.5.0''']]</font>
|width="225px" align="center"|<font size="+2">[[GEOS-Chem model development_priorities|Future releases]]</font>


=== Emissions ===
|}
* [[Anthropogenic emissions]]
* [[Biofuel emissions]]
* [[Biogenic emissions]]
* [[Biomass burning emissions]]
* [[Lightning NOx emissions]]


=== Chemistry ===
== News ==
* [[NOx-Ox-HC-aerosol|NOx-Ox-hydrocarbon-aerosol (aka "full-chemistry") simulation]]
*02 Feb 2024: Read the [https://drive.google.com/file/d/1lUsMZkO0prJGc2eAR1hSxAlYlRooDwK5/view?usp=sharing GEOS-Chem Newsletter 2024, Issue #1]
* [[Mercury|Mercury simulation]]
*13 Aug 2024: [[GEOS-Chem 14.4.3]] is now available!
*03 Jul 2024: We have started migrating older content to the [[GEOS-Chem Wiki archives]].
*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:rebekah.horner.20@ucl.ac.uk Bex Horner] with issues or questions.
*The GEOS-Chem Youtube Channel has 350+ subscribers and a new URL: <tt>'''https://www.youtube.com/~geoschem'''</tt>
*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


=== Met Fields ===
For access to all past GEOS-Chem newsletters, visit [[GEOS-Chem newsletters|this page]].
* [[GEOS-5 Issues]]
* [[http://www.as.harvard.edu:16080/chemistry/trop/geos/doc/man/gc_a4.html GEOS-Chem Met Fields (from website)]]


=== Related Projects ===
== Documentation ==
* [[GEOS-Chem Adjoint]]
* [http://coco.atmos.washington.edu/cgi-bin/ion-p?page=arctas.ion|GEOS-Chem Near-Real-Time Simulations]


== Wiki Documentation ==
=== Archives ===
* [http://meta.wikimedia.org/wiki/Help:Contents MediaWiki User's Guide]
 
* [http://www.mediawiki.org/wiki/Manual:Configuration_settings Configuration Settings list]
In order to prepare for a migration of the wiki platform, we have archived many of the oldest wiki pages to PDF format.  Please see our '''[[GEOS-Chem Wiki archives]]''' to view these pages.
* [http://www.mediawiki.org/wiki/Manual:FAQ MediaWiki FAQ]
 
* [http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
=== GEOS-Chem manuals and guides ===
 
* [https://geos-chem.readthedocs.io/en/latest/geos-chem-shared-docs/supplemental-guides/related-docs.html User manuals for GEOS-Chem starting in version 13]
*[https://geoschem.github.io/gcclassic-manpage-archive/ User manuals for GEOS-Chem 12 and prior versions]
*Guide to running [[GEOS-Chem in CESM]]
*[[Software_maintained_by_GEOS-Chem_community_members|List of software tools maintained by GEOS-Chem users]]
 
=== General information about GEOS-Chem ===
 
The table below lists where you can find general information about GEOS-Chem.
 
{| border=1 cellpadding=5 cellspacing=0
 
|-valign="top"
!width="200px" bgcolor="#CCCCCC"|Item
!width="360px" bgcolor="#CCCCCC"|Link
!width="365px" bgcolor="#CCCCCC"|Description
 
|-valign="top"
|'''GEOS-Chem website'''
|[http://www.geos-chem.org geos-chem.org]
|Website that links to GEOS-Chem information and resources
 
|-valign="top"
|'''Welcome Letter'''
|[http://geos-chem.org/welcome.html geos-chem.org/welcome.html]
|A welcome letter for new users of GEOS-Chem
 
|-valign="top"
|'''GEOS-Chem Overview'''
|[[GEOS-Chem overview]] (wiki page)
|A page with linking to many GEOS-Chem topics.
 
|-valign="top"
|'''GEOS-Chem Narrative'''
|[http://geos-chem.org/narrative.html geos-chem.org/narrative.html]
|A narrative descrption of GEOS-Chem that you can include in scientific papers (plus instructions for citing GEOS-Chem)
 
|-valign="top"
|'''GEOS-Chem New Developments'''
|[http://geos-chem.org/new-developments.html geos-chem.org/new-developments.html]
|A list of significant GEOS-Chem updates and the developers who worked on them
 
|-valign="top"
|'''GEOS-Chem Steering Committee (GCSC)'''
|[http://geos-chem.org/steering-committee.html geos-chem.org/steering-committee.html]  
|A listing of current GCSC members and minutes from GCSC meetings
 
|-valign="top"
|'''GEOS-Chem Working Groups'''
|[http://geos-chem.org/working-groups geos-chem.org/working-groups.html]
|A listing of GEOS-Chem Working Groups and Working Group Co-Chairs
 
|-valign="top"
|'''GEOS-Chem Versions'''
|[[GEOS-Chem versions]] (wiki page)
|A listing of GEOS-Chem versions (with links for more information)
 
|-valign="top"
|'''GEOS-Chem Species List'''
|[https://geos-chem.readthedocs.io/en/latest/geos-chem-shared-docs/supplemental-guides/species-guide.html View GEOS-Chem Species properties] (ReadTheDocs page)
|A listing of the species used in the GEOS-Chem chemistry mechanisms
 
|-valign="top"
|'''GEOS-Chem Guides'''
|[[GEOS-Chem_overview#GEOS-Chem_Guides|GEOS-Chem Guides (wiki page)]]
|List of several user guides explaining topics in-depth
 
|-valign="top"
|'''Requesting Support'''
|[https://geos-chem.readthedocs.io/en/latest/help-and-reference/SUPPORT.html GEOS-Chem support guidelines]
|ReadTheDocs page with instructions for creating GEOS-Chem support requests using the Github issue trackers
 
|-valign="top"
|'''Submitting code or data'''
|[https://geos-chem.readthedocs.io/en/latest/help-and-reference/CONTRIBUTING.html GEOS-Chem contributing guidelines]
|ReadTheDocs page with instructions for submitting new source code or data updates to be included into GEOS-Chem.
 
|}

Latest revision as of 16:12, 12 November 2024

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 14.5.0 Future releases

News

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

Documentation

Archives

In order to prepare for a migration of the wiki platform, we have archived many of the oldest wiki pages to PDF format. Please see our GEOS-Chem Wiki archives to view these pages.

GEOS-Chem manuals and guides

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.org/welcome.html 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/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/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/steering-committee.html A listing of current GCSC members and minutes from GCSC meetings
GEOS-Chem Working Groups geos-chem.org/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 View GEOS-Chem Species properties (ReadTheDocs page) A listing of the species used in the GEOS-Chem chemistry mechanisms
GEOS-Chem Guides GEOS-Chem Guides (wiki page) List of several user guides explaining topics in-depth
Requesting Support GEOS-Chem support guidelines ReadTheDocs page with instructions for creating GEOS-Chem support requests using the Github issue trackers
Submitting code or data GEOS-Chem contributing guidelines ReadTheDocs page with instructions for submitting new source code or data updates to be included into GEOS-Chem.
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=Main_Page&oldid=54457"