README -- Describes contents of HEMCO/CO2/v2015-04/BIOFUEL
22 Apr 2015
GEOS-Chem Support Team
geos-chem-support@g.harvard.edu

Overview:
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This directory contains biofuel emission data archived from derived from the 
Yevich and Logan (2003) biofuel inventory.  

Original data files were supplied by Ray Nassar.  
Bob Yantosca edited the files for better COARDS compliance.
 

Files:
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biofuel_CO2.geos.1x1-1995.nc

 -- Biofuel emissions of CO2 from Ray Nassar (see original README below).

    Resolution  : GENERIC 1 x 1 grid
    Units       : kg/2ms/
    Timestamps  : 1995/01/01
    Compression : Level 1 (e.g. nccopy -d1)

References:
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Yevich, R. and J.A. Logan, An assessment of biofuel use and burning of
agricultural waste in the developing world, Global Biogeochemical Cycles, 
17(4), 1095, doi:10.1029/2002GB00152 (2003).

Also see our wiki page: http://wiki.geos-chem.org/CO2_simulation

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The biofuel bpch files were created by Ray Nassar 2010 March 11.

It was based on the following ASCII data (developing world only - Table 13 
in Yevich and Logan):

* The woodfuels file is called WDF.1x1 and total of all 1x1 boxes is 1323.17 Tg
* The residue/dung biofuels file is CMB.1x1 and total is              732.82 Tg 

The following component was not included since this is now better represented 
by GFED.

* The burning-in-fields file   is BIF.1x1 and totals                  406.36 Tg

Emission Factors (CO2 g/kg) used for CO2 were:

Woodfuel            1467 / 0.45  (Table 22)
Burn-in-fields      1132 / 0.40  (Table 24)
Residue             1192 / 0.40  (Table 22)
Dung                1010 / 0.35  (Table 22)
Residue and Dung    1161.5 / 0.3916 based on weighting in Table 13 
(Residue 239 Tg + Dung 48 Tg)

Note: The above includes the factor for conversion of g DM to g C (Appendix B)

Scaling the 1985 values to 1995 values was done for 3 separate regions 
based on Table 16.

180-30W Latin America
30W-60E Africa (including Middle East)
60-180E Asia

REFERENCES

Yevich, R. and J.A. Logan, An assessment of biofuel use and burning of
agricultural waste in the developing world, Global Biogeochemical Cycles, 
17(4), 1095, doi:10.1029/2002GB00152 (2003).