Difference between revisions of "HEMCO"

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Welcome to the Harmonized Emissions Component (HEMCO) homepage!
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This content has been migrated to [https:/hemco.readthedocs.io <tt>hemco.readthedocs.io</tt>].
 
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HEMCO is a stand-alone software component for computing emissions in (global) atmospheric models. It provides a highly customizable interface to calculate and diagnose emissions from different sources, regions and species on a user-specified grid through automatic combination, overlay, and update of a set of data inventories and scale factors specified by the user.
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HEMCO has been implemented in GEOS-Chem, providing an ESMF-compatible interface for the emission inventories / extensions listed at the end of this page. Additional emission inventories and extensions can be readily added by individual users.
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Please contact [http://www.ckeller.ch Christoph Keller] if you have any questions or would like to couple HEMCO to another model and/or ESMF environment. [https://hemco.readthedocs.io/en/latest/coupling/intro.html A guide to couple HEMCO to other models] is also available.
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== Description of HEMCO ==
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=== Documentation ===
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* Description paper: [http://www.geosci-model-dev.net/7/1409/2014/gmd-7-1409-2014.html Keller et al. (2014)]
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* HEMCO 3.0.0+ description paper, with summary of previous HEMCO implementations and implementations into other models: [https://gmd.copernicus.org/articles/14/5487/2021/gmd-14-5487-2021.html Lin et al. (2021)]
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* Manual: '''[https://hemco.readthedocs.io hemco.readthedocs.io]'''
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== HEMCO in GEOS-Chem ==
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Please see the following wiki pages for more information about the implementation of HEMCO in the GEOS-Chem model:
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'''All GEOS-Chem users''' should read:
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#'''''[https://hemco.readthedocs.io hemco.readthedocs.io]'''''.  This is the official technical reference document for HEMCO.
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#'''''[https://gmd.copernicus.org/articles/14/5487/2021/gmd-14-5487-2021.html Lin et al. (2021)]''''', This article describes HEMCO 3.0.0.
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#'''''[http://www.geosci-model-dev.net/7/1409/2014/gmd-7-1409-2014.html Keller et al 2014, GMD]'''''.  This article, is the introductory reference paper for HEMCO.
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'''Advanced GEOS-Chem users and core HEMCO developers''' should also read:
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#'''''[https://hemco.readthedocs.io/en/latest/coupling/intro.html Coupling HEMCO to other models]'''''.  This chapter of '''hemco.readthedocs.io'' contains information about adding HEMCO to external models.
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#'''''[[Preparing data files for use with HEMCO]]'''''.  This wiki page contains information about
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#*Creating data files for emissions and other data sets that adhere to the [http://ferret.wrc.noaa.gov/noaa_coop/coop_cdf_profile.html COARDS netCDF standard].
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#*Converting data files from [http://acmg.seas.harvard.edu/gamap/doc/Chapter_6.html#6.2 binary punch format] to COARDS-compliant netCDF format.
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--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 18:40, 15 July 2022 (UTC)
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== HEMCO as a standalone component ==
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You can also run HEMCO independently of GEOS-Chem.  This is most often done to check if the scheduled emissions have been computed correctly before including them in a long GEOS-Chem simulation.  You can run HEMCO to compute emissions for several months or years in much less time than if you were to run a full GEOS-Chem simulation.
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In [[GEOS-Chem v11-02]] and newer versions, a HEMCO standalone run directory will be added to the [[GEOS-Chem Unit Tester]].  Furthermore, the standard GEOS-Chem benchmarking procedure will include a long HEMCO standalone simulation to validate the emissions.
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For more information, please see [[HEMCO_standalone|our ''HEMCO standalone'' wiki page]].
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--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 17:32, 22 May 2017 (UTC)
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== Currently available emission inventories and extensions ==
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Please see our [[HEMCO data directories|''HEMCO data directory'' wiki page]] for a complete list of all of the emissions inventories and other relevant data sets that can be used with HEMCO.  There you will also find [[HEMCO_data_directories#Downloading_the_HEMCO_data_directories|instructions for downloading these data to your local disk server]].
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--[[User:Bmy|Bob Y.]] 17:31, 13 February 2015 (EST)
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== Known issues ==
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Please see the [https://hemco.readthedocs.io/en/latest/reference/known-bugs.html Known bugs and issues] chapter of '''hemco.readthedocs.io''' for more information about unresolved bugs and/or technical issues.
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== References ==
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#C. A. Keller, M. S. Long, R. M. Yantosca, A. M. Da Silva, S. Pawson, and D. J. Jacob, ''HEMCO v1.0: A versatile, ESMF-compliant component for calculating emissions in atmospheric models'', <u>Geosci. Model Devel. </u>, '''7''', 1409-1417, 2014. [http://www.geosci-model-dev.net/7/1409/2014/gmd-7-1409-2014.html (Article)]
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#[[The HEMCO User's Guide]]
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--[[User:Christoph Keller|C. Keller]] 08:17, 14 July 2014 (EST)
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== Related wiki pages ==
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We invite you to visit the following related wiki pages:
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#[[GEOS-Chem HP]]
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#[[Programming techniques for HPC environments]]
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#[[Derived type objects used by GEOS-Chem]]
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#[[HEMCO data directories]]
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--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 22:09, 6 January 2017 (UTC)
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Revision as of 20:19, 4 August 2022

This content has been migrated to [https:/hemco.readthedocs.io hemco.readthedocs.io].