Fire Emission Factors and Emission Inventories

Users must submit their name and contact information before any of the files on this page may be downloaded. Please fill in your contact information here, select the file that you would like to download, and then submit your request at the bottom of this page. For any questions or comments about the downloads on this page, please contact Christine Wiedinmyer.

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Fire INventory from NCAR (FINN), version 2.5

You may download FINN version 2.5 at the NCAR Research Data Archive (RDA).

Fire INventory from NCAR (FINN), Version 1.5

January 3, 2018
FINNv1.5 emission files for 2016 have been updated/replaced to correct for a leap year error. Emissions for 2017 and 2018 (through December 25) are now available. Please see note below about the FINNv1.6 emission files.

April 30, 2018
Issues with the FINNv1.6 files (allowed for download from this site in December 2017) were discovered recently, and it is recommended that these files are NOT used. As of April 20, 2018, the FINNv1.5 files are available to download now.
We recommend that FINNv1.6 files are no longer used. Please contact with any questions.

May 30, 2021
FINNv1.5 is now available for 2020 (Jan 1 to Dec 30).
Wiedinmyer et al., Geoscientific Model Development, 2011

Please choose the time period and speciation desired:
FINNv1.5 with Year: Speciation:


  • Files are comma-delimited ASCII files. The format for the files are the same as the format of the version 1 files.
  • For more information on MOZART4 and SAPRC99, please download this README file and the January 2019 update.
  • For more information on GEOS-chem, please download this README file.

Please refer to the README files for more information. For any questions, please contact Christine Wiedinmyer.

Emissions from Open Waste Burning

The downloadable file is a NetCDF file that contains the annual emission estimates from open waste burning on a 0.1degree global grid. Please see the README for more information.

Wiedinmyer et al., (2014) Global Emissions of Trace Gases, Particulate Matter, and Hazardous Air Pollutants from Open Burning of Domestic WasteEnvironmental Science & Technology.

Global Biomass Burning Emission Factor Compilation

Updated September 2018
The compilation of emission factors from recent studies continues. Please see this list of recent articles with published emissions factors. For any questions, please contact Bob Yokelson.

Updated July 2017
The emission factor compilation updates continues, but will not be finalized for some time. Until then, please download this document for updates to emission factors used in the Akagi et al. supplemental tables.
For any questions, please contact Bob Yokelson.

Emission Factors

Updated February 2015

Stockwell et al. 2015
Stockwell et al. 2014
Akagi et al. 2013
Yokelson et al. 2013
Akagi et al. 2011

Updates to Savanna (Table S1) were made in February 2015. Click here for the Update Notes.
Supplementary Tables S1-S14 Update Feb 2015 

Updates to temperate and extratropical forest and chaparral were made in May 2014. Click here for the Update Notes.
Extratropical Update
Supplementary Tables S1-S14 Update

Original, published files from Akagi et al. (2011) generated April 27, 2011 can be downloaded here:
Summary of emission factors for 15 major fire types (Tables 1-5)
Supplementary Tables 1-14 (details of cited studies and calculations)

For more information, please contact Christine Wiedinmyer ( or Bob Yokelson (

Gridding program - updated June 2020

fire_emis fortran program to grid the FINN (v1.5 and v2) text files to netcdf files for use in WRF-Chem or global models.
vegetation data files used in creating WRF-Chem gridded emissions (not needed for global grids).

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