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|<p><font color="#FFFFFF" size="+3">'''GEOS&#150;Chem Wiki'''</font></p>
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<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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<tr bgcolor="#00AAAA">
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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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</tr>
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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.]
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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="1000px" bordercolor="#000000" cellspacing="0" cellpadding="5"
  
<!-- Introduction & Overview: Links -->
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<td width="50%" valign="top">
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|width="225px" align="center"|<font size="+2">[[GEOS-Chem versions|Past releases]]</font>
* [[GEOS-Chem welcome letter for new users]]
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|width="450px" align="center" bgcolor="#CCFFFF"|<font size="+2">[[GEOS-Chem 12#12.8.2|'''Current release: GEOS-Chem 12.8.2''']]</font>'''''
* [[Features of the GEOS-Chem public wiki]]
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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/geos_overview.html GEOS-Chem Overview]
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* [http://acmg.seas.harvard.edu/geos/geos_people.html GEOS-Chem People & Projects]
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* [http://acmg.seas.harvard.edu/geos/word_pdf_docs/resources_guidelines_tips.pdf User Resources, Code Development Guidelines, and Debugging Tips]
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* [[GEOS-Chem programming staff]]
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* [[GEOS-Chem newsletters]]
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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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|}
<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 ==
 +
*'''30 May 2020''' Read the [[Media:GEOS-Chem_Newsletter_Spring_2020.pdf|GEOS-Chem Newsletter, Spring 2020 Edition]]!
 +
*'''27 May 2020:''' [[GEOS-Chem_12#12.8.2|GEOS-Chem 12.8.2]] is now available!
 +
*'''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!
 +
*'''14 Jun 2019:''' We have overhauled the GEOS-Chem wiki to make content easier to understand. If you miss the old front page, it can still be viewed [[Main_Page_(June_2017)|HERE]].
  
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For access to all past GEOS-Chem newsletters, visit [[GEOS-Chem newsletters|this page]].
<!-- ===== GENERAL INFO : SECOND ROW                    ===== -->
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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 welcome letter for new users]]
 +
*[[GEOS-Chem overview]]
 +
*[[GEOS-Chem basics]]
 +
*[[Getting Started with GEOS-Chem]]
 +
*[[Getting Started with GCHP]]
 +
*[http://cloud.geos-chem.org Running GEOS-Chem on AWS cloud ('''''cloud.geos-chem.org''''')]
 +
*[[GEOS-Chem overview#GEOS-Chem Guides|GEOS-Chem Guides]]
 +
*[[GEOS-Chem_Benchmarks|GEOS-Chem Benchmarks]]
 +
*[[Guide to species in GEOS-Chem|GEOS-Chem species]]
  
<!-- Getting Started With GEOS-Chem: Links -->
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== Featured links ==
<td width="50%" valign="top">
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*[[Submitting GEOS-Chem support requests]]
* [[Minimum system requirements for GEOS-Chem]]
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*[[Bugs_and_fixes#Bugs_and_fixes_lists_have_now_been_migrated_to_Github|List of GEOS-Chem bugs and fixes by version]] (as posted on  [https://github.com/geoschem/geos-chem/issues/ our Github issue tracker])
* [[GEOS-Chem supported platforms and compilers]]
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*[[Submitting updates for inclusion in GEOS-Chem]]
* [[Downloading GEOS-Chem source code and data]]
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*[[GEOS-Chem HP|GCHP Main Page]]
* [[GEOS-Chem code development cycle]]
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*[[GEOS-Chem Adjoint]]
* [[GEOS-Chem programming resources]] (e.g. tutorials, user guides, etc.)
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*[http://wrf.geos-chem.org GEOS-Chem coupled with WRF ('''''wrf.geos-chem.org''''')]
* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_7.html GEOS-Chem Programming Style Guide]
+
*[http://youtube.com/c/geoschem GEOS-Chem YouTube Channel ('''''youtube.com/c/geoschem''''')&mdash;contains tutorial videos]
* [[Running GEOS-Chem with TESTRUN]]
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</td>
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<!-- General Technical Information: Links -->
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<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]]
+
</td>
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</tr>
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</table>
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<!-- ===== CODE DEVELOPER'S FORUMS: TITLE              ===== -->
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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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<tr bgcolor="#00AAAA">
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<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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</tr>
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<!-- ===== CODE DEVELOPER'S FORUMS : FIRST ROW          ===== -->
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<tr bgcolor="#cccccc">
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<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>
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<tr>
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<!-- Coding: Links -->
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<td width="50%" valign="top">
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* [[GEOS-Chem versions under development]]
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* [[Machine issues & portability]]
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* [[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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<td width="50%" valign="top">
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* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_5.html Overview of diagnostics characteristics]
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* [[Mass Flux (ND24/25/26)]]
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* [[Additional diagnostics]]
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</td>
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</tr>
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<!-- ===== CODE DEVELOPER'S FORUMS : SECOND ROW        ===== -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Emissions</big></th>
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<th width="50%"scope="col"><big>Chemistry</big></th>
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</tr>
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<tr>
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<!-- 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 Anthropogenic emissions in GEOS-Chem v8-02-03]
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** [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]
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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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* [[Volcanic SO2 emissions from Aerocom|Volcanic emissions]]
+
</td>
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<!-- Chemistry Links -->
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<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]]
+
* [[Mercury|Mercury simulation]]
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* [[Tagged CO simulation]]
+
* [[KPP solvers FAQ]]
+
* Isoprene chemistry
+
** [[Isoprene|List of recent papers about isoprene]]
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** [[New isoprene scheme|Updated isoprene chemistry scheme (v8-02-05)]]
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* [[Linoz stratospheric ozone chemistry]]
+
</tr>
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<!-- ======================================================== -->
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<!-- ===== CODE DEVELOPER'S FORUMS : THIRD ROW        ===== -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Dynamics</big></th>
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<th width="50%"scope="col"><big>Deposition</big></th>
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</tr>
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<tr>
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<!-- Dynamics: Links -->
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<td width="50%" valign="top">
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* [[Advection scheme TPCORE]]
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* [[Cloud convection]]
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</td>
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<!-- Deposition: Links -->
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<td width="50%" valign="top">
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* [[Dry deposition]]
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* [[Wet deposition]]
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</td>
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</tr>
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<!-- ======================================================== -->
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<!-- ===== CODE DEVELOPER'S FORUMS : FOURTH 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>Aerosols</big></th>
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<th width="50%"scope="col"><big>Met Fields</big></th>
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</tr>
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<tr>
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<!-- Aerosols: Links -->
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<td width="50%" valign="top">
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* [[Aerosols overview: projects and developments|Aerosols working group]]
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* [[Aerosol-only simulation]]
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* [[Aerosol thermodynamical equilibrium]]
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* [[Secondary organic aerosols]]
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* [[Sea salt aerosols]]
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* [[Sulfate aerosols]]
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* [[TOMAS aerosol microphysics]]
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</td>
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<!-- Met Fields: Links -->
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<td width="50%" valign="top">
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* [[GCAP]]
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* [[GMAO GEOS-4]]
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* GMAO GEOS-5
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** [[List of GEOS-5 met fields]]
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** [[GEOS-5 issues]]
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** [[GEOS-5 met field reprocessing]]
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* [http://acmg.seas.harvard.edu/geos/doc/man/appendix_4.html GEOS-Chem Met Fields (from website)]
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** [[Notes regarding GEOS vertical grids]]
+
</td>
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</tr>
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<!-- ======================================================== -->
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<!-- ===== CODE DEVELOPER'S FORUMS : FIFTH ROW          ===== -->
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<!-- ======================================================== -->
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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>
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<tr>
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<!-- Nested Grid Simulations: Links -->
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<td width="50%" valign="top">
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* [[GEOS-Chem nested grid simulations]]
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* [[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 -->
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<td width="50%" valign="top">
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* [[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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<!-- ======================================================== -->
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<!-- ===== CODE DEVELOPER'S FORUMS : SIXTH ROW          ===== -->
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<!-- ======================================================== -->
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<tr bgcolor="#cccccc">
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<th width="50%"scope="col"><big>Benchmarking and Evaluation</big></th>
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<th width="50%"scope="col"><big>Related Projects</big></th>
+
</tr>
+
 
+
<tr>
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+
<!-- Diagnostics: Links -->
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<td width="50%" valign="top">
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* [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]
+
</td>
+
 
+
<!-- Related Projects: Links -->
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<td width="50%" valign="top">
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* [[GEOS-Chem column code]]
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* [[GEOS-Chem Adjoint]]
+
* [[GEOS-Chem Near-Real-Time Simulations]]
+
</td>
+
 
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</tr>
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</table>
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<!-- ======================================================== -->
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<!-- ===== REFERENCE: TITLE                            ===== -->
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<!-- ======================================================== -->
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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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<tr bgcolor="#00AAAA">
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<th colspan="2" height="50" valign="middle"><p><font color="#FFFFFF" size="+2">Reference Section</font></p></th>
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</tr>
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<!-- ======================================================== -->
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<!-- ===== REFERENCE: FIRST ROW                        ===== -->
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<!-- ======================================================== -->
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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)]
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* [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]]
+
**[[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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<!-- ======================================================== -->
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<!-- ===== REFERENCE: SECOND ROW                        ===== -->
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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">
+
* [[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]
+
</td>
+
 
+
</tr>
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</table>
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Revision as of 13:49, 1 June 2020

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.

Past releases Current release: GEOS-Chem 12.8.2 Future releases

News

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

Documentation

Featured links