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|<p><font color="#FFFFFF" size="+3">'''GEOS&#150;Chem Wiki'''</font></p>
<th colspan="2" height="80" valign="middle"><p><font color="#FFFFFF" size="+3">GEOS&#150;Chem Wiki</font></p></th>
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<blockquote><p align="justify">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://www.as.harvard.edu 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.]</p></blockquote>
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<blockquote><p align="justify">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.</p></blockquote>
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<blockquote><p align="justify">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!</p></blockquote>
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----
<!-- ===== GENERAL INFO ABOUT GEOS-CHEM                ===== -->
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<p>&nbsp;</p>
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<table width="100%" border="1" bordercolor="#000000" cellspacing="0" cellpadding="5" align="center">
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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>
<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">General information about GEOS&#150;Chem</font></p></th>
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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].
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Introduction and overview</big></th>
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<th width="50%"scope="col"><big>Steering Committee And Working Groups</big></th>
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</tr>
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<tr>
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{|border="1" width="925px" bordercolor="#000000" cellspacing="0" cellpadding="5"
  
<!-- Introduction & Overview: Links -->
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<td width="50%" valign="top">
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|colspan="3" align="center" bgcolor="#CCCCCC"|'''<font size="+2">[[GEOS-Chem overview]]</font>'''
* [[Features of the GEOS-Chem public wiki]]
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* [[GEOS-Chem welcome letter for new users]]
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|width="225px" align="center"|<font size="+2">[[GEOS-Chem versions|Past releases]]</font>
* [http://acmg.seas.harvard.edu/geos/geos_overview.html GEOS-Chem Overview]
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|width="450px" align="center" bgcolor="#CCFFFF"|<font size="+2">[[GEOS-Chem 13.3.4|'''Current release: GEOS-Chem 13.3.4''']]</font>
* [http://acmg.seas.harvard.edu/geos/geos_people.html GEOS-Chem People & Projects]
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|width="225px" align="center"|<font size="+2">[[GEOS-Chem model development_priorities|Future releases]]</font>
* [http://acmg.seas.harvard.edu/geos/word_pdf_docs/resources_guidelines_tips.pdf User Resources, Code Development Guidelines, and Debugging Tips]
+
* [[GEOS-Chem programming staff]]
+
* [[GEOS-Chem newsletters]]
+
</td>
+
  
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|}
<td width="50%" valign="top">
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* [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee]
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** [[GEOS-Chem model development priorities]]
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* [http://acmg.seas.harvard.edu/geos/geos_working_groups.html GEOS-Chem Working Groups]
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** [[GEOS-Chem Adjoint|Adjoint Model and Data Assimilation Working Group]]
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** [[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
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** [[Carbon Gases and Organics Working Group]]
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** [[Emissions Working Group]]
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** [[Chemistry Issues|Oxidants and Chemistry Working Group]]
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** [[Regional Air Quality Working Group]]
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</td>
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</tr>
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== News ==
 +
*'''07 Dec 2021:''' [[GEOS-Chem 13.3.4]] is now available!
 +
*'''19 Sep 2021:''' Read the [[Media:GEOS-Chem_Newsletter_Winter_2021.pdf|GEOS-Chem Newsletter, Winter 2021]]
 +
*'''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]].
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== Documentation ==
<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Getting Started With GEOS-Chem</big></th>
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<th width="50%"scope="col"><big>General Technical Information</big></th>
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</tr>
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<tr>
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=== GEOS-Chem manuals and tutorials ===
  
<!-- Getting Started With GEOS-Chem: Links -->
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The table below lists the various manual pages for GEOS-Chem and its related software packages.  
<td width="50%" valign="top">
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* [[Minimum system requirements for GEOS-Chem]]
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* [[GEOS-Chem supported platforms and compilers]]
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* [[Downloading GEOS-Chem source code and data]]
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* [[GEOS-Chem code development cycle]]
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* [[GEOS-Chem programming resources]] (e.g. tutorials, user guides, etc.)
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* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_7.html GEOS-Chem Programming Style Guide]
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* [[Running GEOS-Chem with TESTRUN]]
+
</td>
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<!-- General Technical Information: Links -->
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{| border=1 cellpadding=5 cellspacing=0
<td width="50%" valign="top">
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* [[Initial conditions for GEOS-Chem]]
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* [[GEOS-Chem Debugging Tips|Tips on how to debug GEOS-Chem effectively]]
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* [[Reporting GEOS-Chem bugs]]
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* [[Parallelizing GEOS-Chem]] with the OpenMP directives
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* [[Common GEOS-Chem error messages]]
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* [http://acmg.seas.harvard.edu/geos/geos_search.html GEOS-Chem Search Engines]
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</td>
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</tr>
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|-valign="top"
</table>
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!width="200px" bgcolor="#CCCCCC"|Item
 +
!width="360px" bgcolor="#CCCCCC"|Link
 +
!width="375px" bgcolor="#CCCCCC"|Description
  
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|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS: TITLE              ===== -->
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|'''GEOS-Chem Classic'''
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|[[Getting Started with GEOS-Chem]] (wiki page)
<p>&nbsp;</p>
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*NOTE: Will be ported to geos-chem.readthedocs.io soon
<table width="100%" border="1" bordercolor="#000000" cellspacing="0" cellpadding="5" align="center">
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|GEOS-Chem single-node implementation<br>(using 1-64 computational cores)
  
<tr bgcolor="#00AAAA">
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|-valign="top"
<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">GEOS&#150;Chem Code Developers' Forums</font></p></th>
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|'''GCHP'''
</tr>
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|[https://gchp.readthedocs.io gchp.readthedocs.io]
 +
|GEOS-Chem multi-node "high performance" implementation<br>(using 100's - 1000's of computational cores)
  
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|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS : FIRST ROW          ===== -->
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|'''GEOS-Chem on the cloud'''
<!-- ======================================================== -->
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|[http://cloud.geos-chem.org cloud.geos-chem.org]
<tr bgcolor="#cccccc">
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|Instructions for running GEOS-Chem on the Amazon Web Services EC2 cloud-computing platform
<th width="50%"scope="col"><big>Coding</big></th>
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<th width="50%"scope="col"><big>Diagnostics</big></th>
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</tr>
+
  
<tr>
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|-valign="top"
 +
|'''WRF-GC'''
 +
|[http://wrf.geos-chem.org wrf.geos-chem.org]
 +
|GEOS-Chem coupled to the WRF GCM
  
<!-- Coding: Links -->
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|-valign="top"
<td width="50%" valign="top">
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|'''HEMCO'''
* [[GEOS-Chem versions under development]]
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|[https://hemco.readthedocs.io hemco.readthedocs.io]
* [[Machine issues & portability]]
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|The Harmonized Emissions Component
* [[Floating point math issues]]
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* [[Bugs and fixes|List of GEOS-Chem bugs and in which version they were resolved]]
+
</td>
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<!-- Diagnostics: Links -->
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|-valign="top"
<td width="50%" valign="top">
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|'''GCPy'''
* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_5.html Overview of diagnostics characteristics]
+
|[https://gcpy.readthedocs.io gcpy.readthedocs.io]
* [[Mass Flux (ND24/25/26)]]
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|The GEOS-Chem Python Toolkit
* [[Additional diagnostics]]
+
</td>
+
  
</tr>
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|-valign="top"
 +
|'''KPP-for-GEOS-Chem'''
 +
|[https://kpp.readthedocs.io kpp.readthedocs.io]
 +
|The Kinetic PreProcessor (KPP), customized for GEOS-Chem
  
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|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS : SECOND ROW        ===== -->
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|'''GEOS-Chem Adjoint'''
<!-- ======================================================== -->
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|[[GEOS-Chem Adjoint]] (wiki page)
 +
|The GEOS-Chem adjoint model<br> (NOTE: maintained separately from GEOS-Chem)
  
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|-valign="top"
<tr bgcolor="#cccccc">
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|'''GEOS-Chem Videos'''
<th width="50%"scope="col"><big>Emissions</big></th>
+
|[https://youtube.com/c/geos-chem youtube.com/c/geos-chem]
<th width="50%"scope="col"><big>Chemistry</big></th>
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|Tutorial videos for GEOS-Chem, GCHP, HEMCO, GCPy, etc., and recordings of GEOS-Chem meeting sessions
</tr>
+
  
<tr>
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|-valign="top"
 +
|'''GEOS-Chem Guides'''
 +
|[[GEOS-Chem overview#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.)
  
<!-- Emissions: Links -->
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|}
<td width="50%" valign="top">
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* [[Overview]]
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* [[Aircraft emissions]]
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* [[Anthropogenic emissions]]
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** [http://acmg.seas.harvard.edu/geos/word_pdf_docs/emissions_v8_02_03.pdf Description of anthropogenic emissions inventories in GEOS-Chem v8-02-03]
+
** [http://wiki.seas.harvard.edu/geos-chem/images/Anth_emiss_gc_v8-01-04.pdf Description of anthropogenic emissions inventories in GEOS-Chem v8-01-04]
+
** [http://acmg.seas.harvard.edu/geos/word_pdf_docs/INVENTORY_GC_public-pre_v8.pdf Table of available anthropogenic emissions inventories for use w/ GEOS-Chem (pre-v8)]
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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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</td>
+
  
<!-- Chemistry Links -->
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=== General information about GEOS-Chem ===
<td width="50%" valign="top">
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* [[Chemistry Issues]]
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* [[NOx-Ox-HC-aerosol|NOx-Ox-hydrocarbon-aerosol (aka "full-chemistry") simulation]]
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* [[Photolysis mechanism]]
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* [[Mercury|Mercury simulation]]
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* [[Tagged CO simulation]]
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* [[KPP solvers FAQ]]
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* [[Isoprene]]
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* [[Linoz stratospheric ozone chemistry]]
+
</td>
+
  
</tr>
+
The table below lists where you can find general information about GEOS-Chem.
  
<!-- ======================================================== -->
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{| border=1 cellpadding=5 cellspacing=0
<!-- ===== CODE DEVELOPER'S FORUMS : THIRD ROW          ===== -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Nested Grid Simulations</big></th>
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<th width="50%"scope="col"><big>Earth System Model Framework</big></th>
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</tr>
+
  
<tr>
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|-valign="top"
 +
!width="200px" bgcolor="#CCCCCC"|Item
 +
!width="360px" bgcolor="#CCCCCC"|Link
 +
!width="365px" bgcolor="#CCCCCC"|Description
  
<!-- Nested Grid Simulations: Links -->
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|-valign="top"
<td width="50%" valign="top">
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|'''GEOS-Chem website'''
* [[GEOS-Chem nested grid simulations]]
+
|[http://www.geos-chem.org geos-chem.org]
* [[Available met data for nested grid simulations]]
+
|Website that links to GEOS-Chem information and resources
** [http://acmg.seas.harvard.edu/geos/wiki_docs/nested_grids/geos_data_downloads.pdf Protocol for nested-grid data downloads]
+
</td>
+
  
<!-- Met Fields: Links -->
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|-valign="top"
<td width="50%" valign="top">
+
|'''Welcome Letter'''
* [[Installing ESMF and other required libraries]]
+
|[[GEOS-Chem welcome letter for new users]] (wiki page)
* [[Code development with the Earth System Model Framework]]
+
|A welcome letter for new users of GEOS-Chem
* [[Automatic documentation with protex|Generating automatic LaTeX documentation with protex]]
+
** [http://frodo.elon.edu/tutorial/tutorial/tutorial.html Web-based LaTeX tutorial]
+
</td>
+
  
</tr>
+
|-valign="top"
 +
|'''GEOS-Chem Overview'''
 +
|[[GEOS-Chem overview]] (wiki page)
 +
|A page with linking to many GEOS-Chem topics.
  
<!-- ======================================================== -->
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|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS : FOURTH ROW        ===== -->
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|'''GEOS-Chem Narrative'''
<!-- ======================================================== -->
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|[http://geos-chem.org/geos_chem_narrative.html geos-chem.org/geos_chem_narrative.html]
<tr bgcolor="#cccccc">
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|A narrative descrption of GEOS-Chem that you can include in scientific papers (plus instructions for citing GEOS-Chem)
<th width="50%"scope="col"><big>Related Projects</big></th>
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<th width="50%"scope="col"><big></big></th>
+
</tr>
+
  
<tr>
+
|-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
  
<!-- Related Projects: Links -->
+
|-valign="top"
<td width="50%" valign="top">
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|'''GEOS-Chem Steering Committee (GCSC)'''
* [[GEOS-Chem column code]]
+
|[http://www.geos-chem.org/geos_steering_cmte.html geos-chem.org/geos_steering_cmte.html]  
* [[GEOS-Chem Adjoint]]
+
|A listing of current GCSC members and minutes from GCSC meetings
* [[GEOS-Chem Near-Real-Time Simulations]]
+
</td>
+
  
<!-- Diagnostics: Links -->
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|-valign="top"
<td width="50%" valign="top">
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|'''GEOS-Chem Working Groups'''
 +
|[http://www.geos-chem.org/geos_working_groups.html geos-chem.org/geos_working_groups.html]
 +
|A listing of GEOS-Chem Working Groups and Working Group Co-Chairs
  
</td>
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|-valign="top"
 +
|'''GEOS-Chem Versions'''
 +
|[[GEOS-Chem versions]] (wiki page)
 +
|A listing of GEOS-Chem versions (with links for more information)
  
</tr>
+
|-valign="top"
</table>
+
|'''GEOS-Chem Species List'''
 +
|[[Guide to species in GEOS-Chem]] (wiki page)
 +
|A listing of the species used in the GEOS-Chem chemistry mechanisms
  
<!-- ======================================================== -->
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|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS: TITLE              ===== -->
+
|'''Requesting Support'''
<!-- ======================================================== -->
+
|[[Submitting GEOS-Chem support requests]] (wiki page)
<p>&nbsp;</p>
+
|Instructions for creating GEOS-Chem support requests using the Github issue trackers
<table width="100%" border="1" bordercolor="#000000" cellspacing="0" cellpadding="5" align="center">
+
  
<tr bgcolor="#00AAAA">
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|-valign="top"
<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">Reference Section</font></p></th>
+
|'''Submitting code or data'''
</tr>
+
|[[Submitting updates for inclusion in GEOS-Chem]] (wiki page)
 +
|Instructions for submitting new source code or data updates to be included into GEOS-Chem.
  
<!-- ======================================================== -->
+
|}
<!-- ===== VISUALIZATION : FIRST ROW                    ===== -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>IDL</big></th>
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<th width="50%"scope="col"><big>GAMAP</big></th>
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</tr>
+
 
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<tr>
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+
<!-- IDL: Links -->
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<td width="50%" valign="top">
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* [http://www.ittvis.com/ ITT Visualization (vendor)]
+
* [http://idlastro.gsfc.nasa.gov/idl_html_help/Structures.html Structures in IDL]
+
* [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://www.dfanning.com/ Coyote's Guide to IDL Programming (David Fanning's Web Site)] - Lots of tips on how to accomplish programming tasks
+
* [http://www.mpimet.mpg.de/en/misc/software/idl IDL Page at Max Planck Institute for Meteorology]
+
* [http://www.mpimet.mpg.de/en/misc/software/idl/doc/mgs_script.pdf Martin Schultz's IDL Tutorial (PDF Format)]
+
* [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]
+
* [http://cimss.ssec.wisc.edu/~gumley/doc/idltips.pdf The Underground Guide to IDL by Liam Gumley (PDF)]
+
* [[Reading binary files in IDL]]
+
</td>
+
 
+
<!-- Diagnostics: Links -->
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<td width="50%" valign="top">
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* [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]]
+
**[[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]]
+
</td>
+
 
+
</tr>
+
 
+
<!-- ======================================================== -->
+
<!-- ===== VISUALIZATION: SECOND ROW                    ===== -->
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<!-- ======================================================== -->
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<!-- Header title -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Fortran</big></th>
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<th width="50%"scope="col"><big>Wiki Documentation</big></th>
+
</tr>
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<tr>
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+
<!-- Fortran: Links -->
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<td width="50%" valign="top">
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* [http://www.intel.com/cd/software/products/asmo-na/eng/compilers/flin/282048.htm Intel Fortran Compiler for Linux]
+
* [http://www.pgroup.com/products/ PGI Fortran]
+
* [http://www-01.ibm.com/software/awdtools/fortran/xlfortran/ IBM XL Fortran]
+
* [http://docs.sun.com/app/docs/doc/819-3686 Sun Studio 11 Fortran Compiler]
+
* [http://www.liv.ac.uk/HPC/HTMLF90Course/HTMLF90CourseSlides.html Modular Programming w/ Fortran 90 (U. Liverpool)]
+
* [http://www.liv.ac.uk/HPC/F90page.html Other University of Liverpool F90 tutorials and courses]
+
* [http://sunsite.unc.edu/pub/languages/fortran/ User Notes on FORTRAN Programming]
+
* [http://www.nsc.liu.se/~boein/f77to90/f77to90.html Fortran 90 for the FORTRAN 77 Programmer]
+
* [http://www.kcl.ac.uk/kis/support/cc/fortran/f90home.html#1.0 Fortran 90 Home Page at King's College, London]
+
* [http://www.cs.rpi.edu/~szymansk/oof90.html Object Oriented Fortran 90 Programming]
+
</td>
+
 
+
<!-- Wiki Documentation: Links -->
+
<td width="50%" valign="top">
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* [[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]
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* [http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
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Latest revision as of 15:19, 4 January 2022

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 13.3.4 Future releases

News

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.