1. summary:  Global sulfur emissions at 0m and 100m, from 1850-2000 +2001 
     at 1x1.25 (2001 is a copy of 2000)

2. created by: Dani Bundy Coleman, bundy@ucar.edu

3. date and time: 29 Aug 2005

4. platform: sabaki.cgd.ucar.edu

5. dateset format: netCDF

6. endian: N/A

7. archival copy location:

8. creation details:

   Conservative rebinning from 180x360 to 1x1.25.
   Also add 2001 data (copy of 2000) so model can run through end of 2000.

   Yorick script, called by
   
   % cd /datalocal/aux0/data/sulfur/historical
   % yorick -i cv.i 1x1.25

   input : SOx_emissions_180x360_L2_1850-2000_c040129.nc
   output: SOx_emissions_1x1.25_L2_1850-2000_c050829.nc



   The following is a copy of
/fs/cgd/csm/inputdata/atm/cam/scyc/SOx_emissions_128x256_L2_1850-2000_c040321.readme,
which explains how Gary Strand made
SOx_emissions_180x360_L2_1850-2000_c040129.nc.

1.  summary: Global sulfur emissions at 0m and 100m, from 1850-2000.

2.  created by: Gary Strand, strandwg@ucar.edu
 
3.  date and time: 

    SOx_emissions_128x256_L2_1850-2000_c040130.nc : 30 Jan 2004[*]
      [*] - Added 2001 data, replica of 2000 data, on 20 Feb 2004

    SOx_emissions_32x64_L2_1850-2000_c040123.nc   : 23 Jan 2004
    SOx_emissions_64x128_L2_1850-2000_c040129.nc  : 29 Jan 2004

4.  platform: mineral.cgd.ucar.edu
 
5.  dataset format: netCDF
 
6.  endian: N/A
 
7.  archival copy location: 
     /CCSM/inputdata/atm/cam2/scyc/SOx_emissions_128x256_L2_1850-2000_c040321.nc
     /CCSM/inputdata/atm/cam2/scyc/SOx_emissions_128x256_L2_1850-2000_c040321.readme
 
8.  creation details:

    Converted to from ASCII to netCDF by Perl script:

    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/so22nc.pl

    Reversed latitudes and swapped longitudes 180 degrees, and converted to
    S fluxes by Yorick script:

    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2flux.i

    Interpolated to Gaussian grids by Yorick scripts:

    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T21.i
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T42.i
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T85.i
 
9.  derived from:
    Original historical sulfate ASCII data files are currently unavailable due 
    to technical problems. Contact Steve Smith at 'ssmith@pnl.gov' for the 
    latest location. 

    An article about the data is available at

    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/SO2_Emissions_1850-2000.pdf

    Notes on original data:

    These files contain gridded SO2 emissions from 1850 - 2000 with annual 
    resolution. The gridded emissions estimate is provided for each year, 
    with emissions divided into four seasons and high and low for each season.
    The gridded emissions were derived from a historical reconstruction in 
    17 world regions. The emissions were gridded by region, height, season, 
    and source category -- based on the EDGAR SO2 emissions grids. The source 
    categories are: Coal, Oil, Nat Gas, Metal Smelting, Other Ind Proc, Trad 
    Bio, Land-Use, Other.

    Further details, and the reference for this data, can be found in:
    Smith, et al. (2003) 'Historical Sulfur Dioxide Emissions 1850-2000', PNNL 
    report (to be submitted for publication). 
 
    These are updated and extended versions of emissions from: 
    Smith, Steven J., et al. (2001) Historic and Regional Anthropogenic Sulfur 
    Dioxide Emissions. Global and Planetary Change 29/1-2, pp 99-119. 

10. code, scripts, namelists, etc, used to create this file:
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/so22nc.pl
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2flux.i
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T21.i
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T42.i
    http://www.cgd.ucar.edu/ccr/strandwg/ccsm/datasets/sulfur/cv2T85.i