README -- Describes contents of HEMCO/QFED/v2018-07
19 Jul 2018
GEOS-Chem Support Team
geos-chem-support@g.harvard.edu


Overview:
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Contains data files from QFED (Quick Fire Emissions Database)

From the GMAO website:

 The Quick Fire Emissions Dataset (QFED) was developed to enable biomass-burning
 emissions of atmospheric constituents to be included in the NASA Goddard Earth
 Observing System (GEOS) modeling and data assimilation systems. The QFED
 emissions are based on the fire radiative power (FRP) approach and draw on the
 cloud correction method developed in the Global Fire Assimilation System
 (GFAS), QFED however employs more sophisticated treatment of non-observed
 (e.g., obscured by clouds) land areas. Location and FRP of fires are obtained
 from the Moderate Resolution Imaging Spectroradiometer (MODIS) Level 2 fire
 products (MOD14 and MYD14) and the MODIS Geolocation products (MOD03 and
 MYD03). Major advantages of QFED are the high spatial and temporal resolutions,
 and near-real time availability. Currently, QFED provides daily-mean emissions
 of black carbon, organic carbon, sulfur dioxide, carbon monoxide, carbon
 dioxide, PM2.5, ammonia, nitrogen oxides, methyl ethyl ketone, propylene,
 ethane, propane, n- and i-butane, acetaldehyde, formaldehyde, acetone and
 methane.

 QFED emissions at 0.1x0.1 degrees horizontal resolution were used in the 7-km
 GEOS-5 Nature Run experiment (NR-c1440) to provide global fire emissions for
 the interactive aerosol chemistry simulated with an online implementation of
 the Goddard Chemistry, Aerosol, Radiation, and Transport model (GOCART). An
 example of instantaneous aerosol optical thickness (AOT) in September 2005
 shows that the global mesoscale simulation benefited from the high resolution
 QFED emissions and was able to produce realistic individual fire plumes as well
 as large scale features from fires in Africa and the Americas.

Christoph Keller wrote:

   The QFED files that are on the Harvard server (in folder HEMCO/QFED/v2014-09/
   are version v2.4r6. These files are available at 0.1 x 0.1 degrees until the
   end of October 2016, and at 0.25° x 0.25° until end of 2016. 

   For emissions beyond 2016 we need to update to v2.5r1. For consistency
   reasons we should then use that version for all years (2000-forward).

The data in this folder (HEMCO/QFED/v2018-07) contain the QFED v2.5r1 data
for years since 2000. Data downloads from /discover/nobackup/projects/gmao/share/dao_ops/fvInput_nc3/PIESA/sfc/QFED/v2.5r1/0.1/ are ongoing.

References:
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Darmenov, A., and da Silva, A. M.: The Quick Fire Emissions Dataset (QFED) - 
Documentation of versions 2.1, 2.2 and 2.4, NASA TM-2013-104606, Vol. 32, 
(http://gmao.gsfc.nasa.gov/pubs/tm/), 183 pp, 2013.

See: http://www.mpic.de/fileadmin/user_upload/images_presse/Projects/IBBI/pdfs/Zhang_2014xyz_2.pdf

See: https://gmao.gsfc.nasa.gov/research/science_snapshots/global_fire_emissions.php