README -- Contents of pub/geos-chem/data/GEOS_4x5/carbon_200909/
12 Mar 2010
Bob Yantosca and Claire Carouge
geos-chem-support@g.harvard.edu


Files:
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BCOC_TBond_biofuel.2000.geos.4x5 -- Bond et al 2007 biofuel emissions 
                                    of EC and OC on the GEOS 4 x 5 grid.
                                    File is in bpch format.
                                    Units of data are kg C/month.
 
BCOC_TBond_fossil.2000.geos.4x5  -- Bond et al 2007 fossil fuel emissions 
                                    of EC and OC on the GEOS 4 x 5 grid.
                                    File is in bpch format.
                                    Units of data are kg C/month.



NOTES:
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(1) The carbon_200909 directory replaces the data in the carbon_200905 
directory.  The carbon_200905 data were generated with buggy code and
generated bogus files.  The files in 200905 SHOULD NOT be used. 

In addition, my previous statements that the Cooke overwrites over the US 
led to a high bias in BC and OC was WRONG. I think Cooke should still be 
the default (meaning in input.geos, the use Cooke line should be defaulted as 
T, rather than F).

  -- Eric Leibensperger (eml@seas.harvard.edu)

(2) The GEOS_4x5/carbon_200905 data directory has been deleted.  A symbolic 
link has been set up so that older codes that still refer to the carbon_200905
data files will point the the "good" files in carbon_200909.

  -- GEOS-Chem Support Team (geos-chem-support@g.harvard.edu)



Original README follows:
===============================================================================

Tami Bond's BC/OC Emissions from:

   Bond, T.C. et al.: Historical emissions of black and organic carbon aerosol 
    from energy-related combustion, 1850-2000, Global Biogeochem. Cycles, 
    21 GB2018, doi: 10.1029/2006GB002840, 2007.

The diffrence between these emissions and Bond 2004 is small. The major 
difference implemented is the removal of the overwrite of emissions from Cooke
over the United States (phs: Cooke is kept as an option now, as GC v8-02-02).

A seasonal cycle has been implemented over the U.S. following 
Park et al. (2003). This method uses the heating-day approach and 
is applied to residential emissions of BC and OC.