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On this page we list information about the various  
On this page we list information about the various anthropogenic emissions inventories available for use in GEOS-Chem.
[http://acmg.seas.harvard.edu/geos/word_pdf_docs/emissions_v8_02_03.pdf anthropogenic emissions inventories available for use w/ GEOS-Chem v8-02-03]. See [http://wiki.seas.harvard.edu/geos-chem/images/Anth_emiss_gc_v8-01-04.pdf here for the GEOS-Chem v8-01-04 version of that document].


== GLOBAL ANNUAL SCALE FACTOR ==
== Supported inventories ==
The " => Scale to (1985-2005)" option in input.geos will scale all anthropogenic emissions to the year that you select, unless data for that year exists. If you enter a negative number (recommended), emissions will be automatically scaled to the closest-to-simulation year and/or the best base year is selected when several are available in one inventory (like EMEP). It is recommended to set this field to -1 or 2006 for simulations after 2005, so that all inventories are scaled to 2005, and STREETS 2006 is used in SE ASIA.


Here is a brief explanation from van Donkelaar et al., ACPD, 8, 4017-4057, 2008:
Below are links to wiki pages describing anthropogenic emissions inventories that are currently supported in [[GEOS-Chem 13.4.0]] and later versions. Not all of these emissions are used by default, some are intended as research options.  See the [https://hemco.readthedocs.io/en/latest/hco-ref-guide/hemco-config.html HEMCO configuration file] for more information.


"We scale all regional and global inventories from their respective base year to 2003, the last year of available statistics, unless its base year is after 2003. Our approach follows Bey et al. (2001) and Park et al. (2004). Emissions are scaled according to estimates provided by individual countries, where available. These countries/regions include the United States, Canada, Japan and Europe. NOx emissions of remaining countries are scaled proportional to changes in total CO2 emissions. SOx emissions are similarly scaled to solid fuel CO2 emissions and CO emissions to liquid fuel CO2 emissions. CO2 emission data are obtained from the Carbon Dioxide Information Analysis Center (CDIAC).”
For a list of inventories by GEOS-Chem version, please see our [[HEMCO data directories]] wiki page.


Note that the scale factor have been updated since that paper to go up to 2005, and are based on REAS data now for South East Asia:
=== Global inventories ===


Relative changes in the REAS inventory (Ohara et al., ACP, [2007], http://www.jamstec.go.jp/frsgc/research/d4/reas_h_a.html) over East Asia
*[[Aircraft emissions#AEIC_2019_emissions_inventory|AEIC 2019 aircraft emissions]]
have been used. This should be a good improvement as REAS emissions are gridded, rather than national scale emissions, giving us much better spatial detail. Also, these scalars are now based on actual NOx, SOx and CO emission estimates, not strictly an assumed proportionality between total, solid and liquid CO2 emissions.
*[https://iopscience.iop.org/article/10.1088/1748-9326/aa65a4 AFCID anthropogenic dust]
*[https://onlinelibrary.wiley.com/doi/full/10.1002/2016JD025767 C2H6 2010]
*[[CEDS anthropogenic emissions]]
*[[EDGAR anthropogenic emissions]]
*[http://edgar.jrc.ec.europa.eu/htap_v2/index.php?SECURE=123 HTAP anthropogenic emissions]
*[[MASAGE NH3 inventory|MASAGE NH3]]
*[[RCP_future_emissions_scenarios|RCP future emissions]]
*[http://ftp.as.harvard.edu/gcgrid/data/ExtData/HEMCO/TrashEmis/v2015-03/Trash_emissions_readme.pdf Trash burning emissions]
*[http://acmg.seas.harvard.edu/publications/2007/xiao.2007b.pdf Xiao C3H8]


== BRAVO ==
=== Regional inventories ===


Big Bend Regional Aerosol and Visibility Observational (BRAVO) Study Emissions Inventory for Mexico and some neighboring U.S. states.
We recommend using regional inventories where possible to overwrite global emissions inventories in specific regions of the world.


Reference: ''Big Bend Regional Aerosol and Visibility Observational (BRAVO) Study Emissions Inventory'', H. Kuhns, M. Green, and V. Etyemezian, 2003. 
*[[DICE-Africa anthropogenic emissions inventory]]
*[https://github.com/geoschem/geos-chem/issues/547 EPA/NEI2016 North American emissions]
*[[MIX Asian anthropogenic emissions]]


(Click [http://acmg.seas.harvard.edu/geos/wiki_docs/emissions/BRAVOEI_Report_d2.pdf HERE] to view a PDF file of this document.)
== Scale factors ==


== David Streets ==
*[[Scale factors for anthropogenic emissions]]
 
Reference for Streets 2001, used to update under-estimated China CO in the Streets 2000:
Streets, D.G, Q. Zhang, L. Wang, K. He, J. Hao, Y. Wu, Y. Tang, and G.C. Carmichael, "Revisiting China's CO emissions after the Transport and Chemical Evolution over the Pacific (TRACE-P) mission: Synthesis of inventories, atmospheric modeling, and observations", J. Geophys. Res, 111, D14306, doi:10.1029/2006JD007118, 2006.
 
Streets 2000 inventory:
Streets, D.G., T.C. Bond, G.R. Carmichael, S.D. Fernandes, Q. Fu, Z. Klimont, S.M. Nelson, N.Y. Tsai, M.Q. Wang, J-H. Woo, and K.F. Yarber, "An inventory of gaseous and primary aerosol emissions in Asia in the year 2000", J. Geophys. Res, 108, D21, doi:10.1029/2002JD003093, 2003.     
 
Streets 2006 inventory
INTEX-B, http://mic.greenresource.cn/intex-b2006; or http://www.cgrer.uiowa.edu/EMISSION_DATA_new/index_16.html
 
Zhang, Q., Streets, D. G., Carmichael, G. R., He, K. B., Huo, H., Kannari, A., Klimont, Z., Park, I. S., Reddy, S., Fu, J. S., Chen, D., Duan, L., Lei, Y., Wang, L. T., and Yao, Z. L.: Asian emissions in 2006 for the NASA INTEX-B mission, Atmos. Chem. Phys., 9, 5131-5153, 2009.
 
== EDGAR ==
 
Emissions Database for Global Atmospheric Research (EDGAR) inventory.
 
Reference: Olivier, J. G. J. and J. J. M. Berdowski (2001), Global emissions sources and sinks. In: Berdowski, J., Guicherit, R. and B.J. Heij (eds.) "The Climate System", pp. 33-78. A. A. Balkema Publishers/Swets & Zeitlinger Publishers, Lisse, The Netherlands.
 
A related document can be found here: [http://wiki.seas.harvard.edu/geos-chem/images/EDGAR_emis.pdf EDGAR description (pdf)]
 
Aaron van Donkelaar has created a [http://acmg.seas.harvard.edu/geos/wiki_docs/emissions/Summary_of_EDGAR_Effects.pdf PDF document] that shows some of the effects of using the EDGAR emissions.
 
--[[User:Bmy|Bmy]] 17:52, 2 May 2008 (EDT)
 
== EMEP ==
The Co-operative Programme for Monitoring and Evaluation of the Long-range Transmission of Air Pollutants in Europe (EMEP) inventory for Europe.
 
Reference: Vestreng, V., and H. Klein (2002), Emission data reported to UNECE/EMEP: Quality assurance and trend analysis & Presentation of WebDab, MSC-W Status Report 2002, Norwegian Meteorological Institute, Oslo Norway, July 2002.
 
== EPA/NEI99 ==
 
=== 23-Apr-2008 ===
 
Modified NEI-99 emission files that incorporate the California transport fix and Rynda Hudman's recommended scalings for CO and NOx are posted [http://www.atmoschem.umn.edu/pub here] (click on epa_nei_mod). These are now available as ICARTT option in input.geos.
:--[[User:Dbm|Dbm]] 11:09, 24 April 2008 (EDT)
 
=== 04-Jan-2008 ===
 
The EPA/NEI99 anthropogenic emissions files have been reprocessed from scratch in order to fix the lack of emissions from the transport sector in California.  This was a bug in the original EPA dataset.
 
The new files are located in the EPA_NEI_200708 directory.  Only the anthropogenic files were reprocessed. 
 
These new EPA/NEI99 anthropogenic emissions have not been implemented into the standard code yet.  They are slated to be added shortly after [[wiki:geos-chem:dev_forum|v8-01-01]], the next public release.
 
Here is the README file by Philippe Le Sager that describes the procedure.
 
:'''MODIFICATION TO EPA-NEI99 emissions'''
:'''10 Aug 2007'''
:'''Philippe Le Sager'''
:'''phs@io.as.harvard.edu'''
 
:Filenames are the same as the previous NEI99 anthropogenic emissions files.
 
:The new emissions have been updated to account for transport emissions in California, which were  missing from the 1999 EPA inventory.
 
:The monthly_average_2001_ai_mb.us36b.*.ncf files are anthropogenic emissions due to transport from 2001 inventory. They are 1x1 data set over USA. Details are in the netCDF attributes.
 
:wk*_avg_an.1999*.geos.1x1 are the original anthropogenic emissions files used in GEOS-Chem (see original README hereafter).
 
:'''Procedure to update the emissions includes'''
:# A mask was created to keep only the California transport emissions from the 2001 inventory.
:# The speciation of PARaffin, a 2001 category that is separated into C2H6, C3H8, ALK4+, and ACET in the 1999 inventory has been estimated from the original NEI99 inventory for consistency.
:# Data have been regridded to conform with GEOS-Chem 1x1 grid.
:# Units conversion (2001 inventory is in moles/s/box).
:# Once masked and separated into their corresponding 1999 species, the 2001 mobile emissions are added to the original NEI99 data.
:# Further regridding is done to get 4x5 and 2x2.5 data.
:# Finally, emissions are cut to get 1x1 North American grid data.
 
:IDL routines to process 2001 emissions and add them to the original files can be found in ~phs/IDL/dvpt/EPA.
:
:'''Results'''
:* The following emissions in California are increased: NOx, CO, ALK4, PRPE, C3H8, C2H6, SO2, SO4, and NH3
 
 
==== 01 Nov 2004 ====
 
Here is the original README file by Rynda Hudman that describes the creation of the EPA/NEI99 emissions files (both anthropogenic and biofuel) that are stored in the EPA_NEI_200411 directory:
 
:'''NEI99 Emission Inventory README (rch 11/1/04)'''
 
:# These files were created from NEI99 regridded emissions originally at .25X.25 resolution. These files can be found /data/epa_data.  Please see README file in this directory for original file info.
 
::The following emission types are included in the NEI99 inventory.
 
:'''Anthropogenic'''
::cow/                 
::household_solvents/ 
::power/
::aircraft/           
::fertilizer/         
::industrial/           
::fowl/               
::industrial_solvents/ 
::residential_fossil/           
::hogs/               
::other/               
::transport/
 
:'''Biofuel'''
::residential_biomass/
 
:'''Not updated but available in inventory'''
::biogenic/           
::biomass/ 
 
:Procedures Document for Emission Inventory can be found in the group library
 
:# The files are large and as such were preprocessed into hourly files using extract_epa.pro of the format: e.g., temp_cow_average.1999jul.wkend_avg.24.gz.  These files can be found at  /data/epa_data/EPA_TEMP/
:# These files were then summed over a day, summed over each source type and converted into molec/cm2/s --> to get anthropogenic and biofuel emissions for each month and regridded to 1X1 using read_regrid_epa.pro.
:# These files were then scaled. All emissions were kept as is except for the following anthropogenice emissions (not biofuel)<br>Propane(19), Ethane(21), and Acetone(9) are scaled by X6.4, X2.5, and X3 respectively to match prior emissions<br>if tracerin(i) eq 19 then scalefactor =  6.4d0<br>if tracerin(i) eq 21 then scalefactor =  2.5d0<br>if tracerin(i) eq 9  then scalefactor =  3.0d0<br>It is well-known that this inventory likely underestimates many VOCs.<br>This scaling was done using scale_to_geos_anthro.pro and scale_to_geos_bf_new.pro
:# These emissions were then regridded using regrid_biofuel.pro and regrid_anthro.pro to create the files in 2X25 and 4X5
:# A mask over the U.S.(1=in U.S. and 0=not in U.S.)  is used to implement these emissions since we do not have original global emission files. NEI99 is used in boxes exclusively U.S., those boxes which have Canadian and Mexican emissions are left as previous 1998 emissions.
:# NEI99 includes both weekend and weekday emissions and those are implemented here.  Diurnal scaling is done as before in GEOS-CHEM.
 
===== Scale Factors =====

Latest revision as of 20:52, 5 September 2023

On this page we list information about the various anthropogenic emissions inventories available for use in GEOS-Chem.

Supported inventories

Below are links to wiki pages describing anthropogenic emissions inventories that are currently supported in GEOS-Chem 13.4.0 and later versions. Not all of these emissions are used by default, some are intended as research options. See the HEMCO configuration file for more information.

For a list of inventories by GEOS-Chem version, please see our HEMCO data directories wiki page.

Global inventories

Regional inventories

We recommend using regional inventories where possible to overwrite global emissions inventories in specific regions of the world.

Scale factors

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