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|<p><font color="#FFFFFF" size="+3">'''GEOS-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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<tr bgcolor="#00AAAA">
<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://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].
<!-- ===== GENERAL INFO : FIRST ROW                    ===== -->
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<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Introduction and overview</big></th>
<th width="50%"scope="col"><big>Steering Committee And Working Groups</big></th>
</tr>


<tr>
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<!-- Introduction & Overview: Links -->
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<td width="50%" valign="top">
|colspan="3" align="center" bgcolor="#CCCCCC"|'''<font size="+2">[[GEOS-Chem overview]]</font>'''
* [[GEOS-Chem welcome letter for new users]]
|-valign="top"
* [[Features of the GEOS-Chem public wiki]]
|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]
|width="450px" align="center" bgcolor="#CCFFFF"|<font size="+2">[[GEOS-Chem 14.5.0|'''Current release: GEOS-Chem 14.5.0''']]</font>
* [http://acmg.seas.harvard.edu/geos/geos_people.html GEOS-Chem People & Projects]
|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 Support Team]]
* [[GEOS-Chem newsletters]]
* [http://acmg.seas.harvard.edu/geos/geos_search.html GEOS-Chem Search Engines]
* [http://acmg.seas.harvard.edu/geos/geos_credit.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]


</td>
|}


<!-- Steering Committee and Working Groups: Links -->
== News ==
<td width="50%" valign="top">
*02 Feb 2024: Read the [https://drive.google.com/file/d/1lUsMZkO0prJGc2eAR1hSxAlYlRooDwK5/view?usp=sharing GEOS-Chem Newsletter 2024, Issue #1]
* [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html GEOS-Chem Steering Committee]
*13 Aug 2024: [[GEOS-Chem 14.4.3]] is now available!
** [[GEOS-Chem model development priorities]]
*03 Jul 2024: We have started migrating older content to the [[GEOS-Chem Wiki archives]].
* [http://acmg.seas.harvard.edu/geos/geos_working_groups.html GEOS-Chem Working Groups]
*A [https://scholar.google.com/citations?user=ho-sNj4AAAAJ GEOS-Chem Google Scholar page] is now available!
** [[GEOS-Chem Adjoint|Adjoint Model and Data Assimilation Working Group]]
**Click 'Follow' to be notified of new publications.
** [[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
**Contact [mailto:rebekah.horner.20@ucl.ac.uk Bex Horner] with issues or questions.
** [[Carbon Gases and Organics Working Group]]
*The GEOS-Chem Youtube Channel has 350+ subscribers and a new URL: <tt>'''https://www.youtube.com/~geoschem'''</tt>
** [[Chemistry-Climate Working Group]]
*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
** [[Hg and POPs Working Group]]
** [[Chemistry Issues|Oxidants and Chemistry Working Group]]
** [[Nested Model Working Group]]
** [[Sources and Sinks Working Group]]
</td>


</tr>
For access to all past GEOS-Chem newsletters, visit [[GEOS-Chem newsletters|this page]].


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== Documentation ==
<!-- ===== GENERAL INFO : SECOND ROW                    ===== -->
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=== Archives ===
<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Getting Started With GEOS-Chem</big></th>
<th width="50%"scope="col"><big>General Technical Information</big></th>
</tr>


<tr>
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.


<!-- Getting Started With GEOS-Chem: Links -->
=== GEOS-Chem manuals and guides ===
<td width="50%" valign="top">
* [[Frequently asked questions about GEOS-Chem]]
* [[Minimum system requirements for GEOS-Chem]]
* [[GEOS-Chem supported platforms and compilers]]
* [[Downloading GEOS-Chem source code and data]]
* [[GEOS-Chem code development cycle]]
* [[GEOS-Chem programming resources]] (e.g. tutorials, user guides, etc.)
* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_7.html GEOS-Chem Programming Style Guide]
* [[Running GEOS-Chem with TESTRUN]]
</td>


<!-- General Technical Information: Links -->
* [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]
<td width="50%" valign="top">
*[https://geoschem.github.io/gcclassic-manpage-archive/ User manuals for GEOS-Chem 12 and prior versions]
* [[Initial conditions for GEOS-Chem]]
*Guide to running [[GEOS-Chem in CESM]]
* [[GEOS-Chem Debugging Tips|Tips on how to debug GEOS-Chem effectively]]
*[[Software_maintained_by_GEOS-Chem_community_members|List of software tools maintained by GEOS-Chem users]]
* [[Reporting GEOS-Chem bugs]]
* [[Parallelizing GEOS-Chem]] with the OpenMP directives
* [[Common GEOS-Chem error messages]]
</td>


</tr>
=== General information about GEOS-Chem ===
</table>


<!-- ======================================================== -->
The table below lists where you can find general information about GEOS-Chem.
<!-- ===== CODE DEVELOPER'S FORUMS: TITLE              ===== -->
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<p>&nbsp;</p>
<table width="100%" border="1" bordercolor="#000000" cellspacing="0" cellpadding="5" align="center">


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{| border=1 cellpadding=5 cellspacing=0
<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">GEOS&#150;Chem Code Developers' Forums</font></p></th>
</tr>


<!-- ======================================================== -->
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!width="200px" bgcolor="#CCCCCC"|Item
<!-- ======================================================== -->
!width="360px" bgcolor="#CCCCCC"|Link
<tr bgcolor="#cccccc">
!width="365px" bgcolor="#CCCCCC"|Description
<th width="50%"scope="col"><big>Coding</big></th>
<th width="50%"scope="col"><big>Diagnostics</big></th>
</tr>


<tr>
|-valign="top"
|'''GEOS-Chem website'''
|[http://www.geos-chem.org geos-chem.org]
|Website that links to GEOS-Chem information and resources


<!-- Coding: Links -->
|-valign="top"
<td width="50%" valign="top">
|'''Welcome Letter'''
* [[GEOS-Chem versions under development]]
|[http://geos-chem.org/welcome.html geos-chem.org/welcome.html]
* [[Bugs and fixes|List of GEOS-Chem bugs and in which version they were resolved]]
|A welcome letter for new users of GEOS-Chem
* [[Currently unresolved issues in GEOS-Chem]]
* [[Common GEOS-Chem error messages]]
* [[GEOS-Chem performance]]
* [[Machine issues & portability]]
* [[Floating point math issues]]
* [[Version control with Git]]
</td>


<!-- Diagnostics: Links -->
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<td width="50%" valign="top">
|'''GEOS-Chem Overview'''
* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_5.html Overview of diagnostics characteristics]
|[[GEOS-Chem overview]] (wiki page)
* [[Diagnostic time step]]
|A page with linking to many GEOS-Chem topics.
* [[Mass Flux (ND24/25/26)]]
* [[Additional diagnostics]]
</td>


</tr>
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|'''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)


<!-- ======================================================== -->
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|'''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


<!-- Header title -->
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<tr bgcolor="#cccccc">
|'''GEOS-Chem Steering Committee (GCSC)'''
<th width="50%"scope="col"><big>Emissions</big></th>
|[http://geos-chem.org/steering-committee.html geos-chem.org/steering-committee.html]
<th width="50%"scope="col"><big>Chemistry</big></th>
|A listing of current GCSC members and minutes from GCSC meetings
</tr>


<tr>
|-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


<!-- Emissions: Links -->
|-valign="top"
<td width="50%" valign="top">
|'''GEOS-Chem Versions'''
* [[Emissions overview]]
|[[GEOS-Chem versions]] (wiki page)
* [[Aerosol emissions]]
|A listing of GEOS-Chem versions (with links for more information)
* [[Aircraft emissions]]
* [[Anthropogenic emissions]]
** [http://acmg.seas.harvard.edu/geos/word_pdf_docs/emissions_v8_02_03.pdf Anthropogenic emissions in GEOS-Chem v8-02-03]  
** [http://wiki.seas.harvard.edu/geos-chem/images/Anth_emiss_gc_v8-01-04.pdf Anthropogenic emissions in GEOS-Chem v8-01-04]
** [http://acmg.seas.harvard.edu/geos/word_pdf_docs/INVENTORY_GC_public-pre_v8.pdf Anthropogenic emissions prior to v8-01-01]
** [[Scale factors for anthropogenic emissions]]
* [[Biofuel emissions]]
* [[Biogenic emissions]]
* [[Biomass burning emissions]]
* [[Lightning NOx emissions]]
* [[Ship emissions]]
* [[Soil NOx emissions]]
* [[Volcanic SO2 emissions from Aerocom|Volcanic emissions]]
</td>


<!-- Chemistry Links -->
|-valign="top"
<td width="50%" valign="top">
|'''GEOS-Chem Species List'''
* Standard chemistry mechanisms in GEOS-Chem
|[https://geos-chem.readthedocs.io/en/latest/geos-chem-shared-docs/supplemental-guides/species-guide.html View GEOS-Chem Species properties] (ReadTheDocs page)
** [[Updating standard chemistry with JPL 10-6]]
|A listing of the species used in the GEOS-Chem chemistry mechanisms
** [[NOx-Ox-HC-aerosol|NOx-Ox-hydrocarbon-aerosol (aka "full-chemistry") simulation]]
** [[KPP solvers FAQ|KPP chemical solver]]
** [[Linoz stratospheric ozone chemistry]]
** [[Stratospheric chemistry]]
** [[Photolysis mechanism|FAST-J photolysis mechanism]]
* Optional chemistry mechanisms in GEOS-Chem
** [[Dicarbonyls simulation]]
** [[New isoprene scheme|Caltech isoprene chemistry scheme (v8-03-01+)]]
** [[Bromine chemistry mechanism]]
* [[Offline chemistry simulations]] in GEOS-Chem
* Other resources
** [[Chemistry Issues]]
** [[Development of Fast-JX in GEOS-Chem]]
** [[DSMACC chemical box model]]
** [[Isoprene|List of recent papers about isoprene]]
** [[Linking GEOS-Chem to CMAQ]]
</tr>


<!-- ======================================================== -->
|-valign="top"
<!-- ===== CODE DEVELOPER'S FORUMS : THIRD ROW        ===== -->
|'''GEOS-Chem Guides'''
<!-- ======================================================== -->
|[[GEOS-Chem_overview#GEOS-Chem_Guides|GEOS-Chem Guides (wiki page)]]
|List of several user guides explaining topics in-depth


<!-- Header title -->
|-valign="top"
<tr bgcolor="#cccccc">
|'''Requesting Support'''
<th width="50%"scope="col"><big>Dynamics</big></th>
|[https://geos-chem.readthedocs.io/en/latest/help-and-reference/SUPPORT.html GEOS-Chem support guidelines]
<th width="50%"scope="col"><big>Deposition</big></th>
|ReadTheDocs page with instructions for creating GEOS-Chem support requests using the Github issue trackers
</tr>


<tr>
|-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.


<!-- Dynamics: Links -->
|}
<td width="50%" valign="top">
* [[Advection scheme TPCORE]]
* [[Boundary layer mixing]]
* [[Cloud convection]]
* [[Dynamic tropopause]]
</td>
 
<!-- Deposition: Links -->
<td width="50%" valign="top">
* [[Dry deposition]]
**[[Leaf area indices in GEOS-Chem]]
* [[Wet deposition]]
</td>
 
</tr>
 
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<!-- ===== CODE DEVELOPER'S FORUMS : FOURTH ROW        ===== -->
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<!-- Header title -->
<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Aerosols</big></th>
<th width="50%"scope="col"><big>Met Fields</big></th>
</tr>
 
<tr>
 
<!-- Aerosols: Links -->
<td width="50%" valign="top">
* [[Aerosols overview: projects and developments|Aerosols working group]]
* [[Aerosol-only simulation]]
* [[Aerosol optical properties]]
* [[Aerosol thermodynamical equilibrium]]
* [[Carbonaceous aerosols]]
* [[Mineral dust aerosols]]
* [[Secondary organic aerosols]]
* [[Sea salt aerosols]]
* [[Sulfate aerosols]]
* Aerosol Microphysics
** [[APM aerosol microphysics|APM]]
** [[TOMAS aerosol microphysics|TOMAS]]
</td>
 
<!-- Met Fields: Links -->
<td width="50%" valign="top">
* [[GCAP]]
* [[Overview of GMAO met data products]]
* [[GMAO GEOS-4]]
* [[GEOS-5|GMAO GEOS-5]]
** [[List of GEOS-5 met fields|List of GEOS-5 met fields used by GEOS-Chem]]
** [[GEOS-5 issues]]
** [[GEOS-5 met field reprocessing]]
* [[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-5.7.2|GMAO GEOS-5.7.2]]
** [[List of GEOS-5.7.2 met fields|List of GEOS-5.7.2 met fields proposed for GEOS-Chem]]
* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_4.html GEOS-Chem Met Fields (from website)]
** [[Notes regarding GEOS vertical grids]]
</td>
 
</tr>
 
<!-- ======================================================== -->
<!-- ===== CODE DEVELOPER'S FORUMS : FIFTH ROW          ===== -->
<!-- ======================================================== -->
<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Nested Grid Simulations</big></th>
<th width="50%"scope="col"><big>Earth System Model Framework</big></th>
</tr>
 
<tr>
 
<!-- Nested Grid Simulations: Links -->
<td width="50%" valign="top">
* [[GEOS-Chem nested grid simulations]]
* [[Setting up GEOS-Chem nested grid simulations]]
* [[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]
</td>
 
<!-- Met Fields: Links -->
<td width="50%" valign="top">
* [[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]
</td>
 
</tr>
 
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<!-- ===== CODE DEVELOPER'S FORUMS : SIXTH ROW          ===== -->
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<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Benchmarking and Evaluation</big></th>
<th width="50%"scope="col"><big>Related Projects</big></th>
</tr>
 
<tr>
 
<!-- Diagnostics: Links -->
<td width="50%" valign="top">
* [http://acmg.seas.harvard.edu/geos/geos_benchmark.html General info about GEOS-Chem benchmark simulations]
* [http://acmg.seas.harvard.edu/geos/geos_1yr_plots.html List of GEOS-Chem 1-year benchmark simulations]
* [[Mean OH lifetime in GEOS-Chem]]
* [ftp://ftp.as.harvard.edu/pub/geos-chem/1yr_benchmarks/ FTP site with output from 1-year GEOS-Chem benchmark simulations]
* [[GEOS-Chem participation in community intercomparisons]]
</td>
 
<!-- Related Projects: Links -->
<td width="50%" valign="top">
* [[Grid-independent GEOS-Chem]]
* [[GEOS-Chem Adjoint]]
* [[GEOS-Chem Near-Real-Time Simulations]]
* [[FlexAOD]]
</td>
 
</tr>
</table>
 
<!-- ======================================================== -->
<!-- ===== REFERENCE: TITLE                            ===== -->
<!-- ======================================================== -->
<p>&nbsp;</p>
<table width="100%" border="1" bordercolor="#000000" cellspacing="0" cellpadding="5" align="center">
 
<tr bgcolor="#00AAAA">
<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">Reference Section</font></p></th>
</tr>
 
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<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>IDL</big></th>
<th width="50%"scope="col"><big>GAMAP</big></th>
</tr>
 
<tr>
 
<!-- IDL: Links -->
<td width="50%" valign="top">
* [http://www.exelisvis.com/ Exelis Visual Information Solutions (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 -->
<td width="50%" valign="top">
* [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]]
</td>
 
</tr>
 
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<!-- ===== REFERENCE: SECOND ROW                        ===== -->
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<!-- Header title -->
<tr bgcolor="#cccccc">
<th width="50%"scope="col"><big>Fortran</big></th>
<th width="50%"scope="col"><big>Perl</big></th>
</tr>
 
<tr>
 
<!-- Fortran: Links -->
<td width="50%" valign="top">
* Intel Fortran Compiler
** [http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/main_for_lin_v11.pdf Version 11.1]
** [http://acmg.seas.harvard.edu/geos/wiki_docs/compilers/main_for_lin_v12.pdf Version 12.1]
* [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>
 
<!-- Perl: Links  -->
<td width="50%" valign="top">
* [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)]
</td>
 
</tr>
 
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<th width="50%"scope="col"><big>Wiki Documentation</big></th>
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*[http://www.r-project.org/ The R project for statistical computing]
*[http://journal.r-project.org/ The R journal]
*[http://www.mayin.org/ajayshah/KB/R/index.html R by example]
*[[Using R to analyze GEOS-Chem data]]
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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]
* [http://lists.wikimedia.org/mailman/listinfo/mediawiki-announce MediaWiki release mailing list]
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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.
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