These grids are based on version 1.1 of the final SRES emissions scenarios. The
version 1.1. emissions are not completely identical to those in Appendix VII of
the SRES report as published by Cambridge University Press (2000). In a small
number of cases slight corrections were made after the publication of the
document to prevent negative emissions which occurred as a result of the
standardization procedure.

Grids have been produced for all six illustrative scenarios. These are:
	The four marker scenarios
		A1B-AIM
		A2-ASF
		B1-IMAGE
		B2-MESSAGE
	plus two additional illustrative scenarios from the A1 scenario family:
		A1G-MiniCAM (a.k.a. A1FI)
		A1T-MESSAGE

Grids are produced for each year from 1990 to 2100 (emissions in 1990 and 2000
are the same in all scenarios).

Emissions are in units of TgS. Emissions are in a block, with values tab
separated, 
scientific format, with each line terminated by a carriage return and linefeed 
(MS DOS style). Lines correspond to rows of constant latitude. The first point
is 
for the cell 180-179 W Lon, 89-90 N lat. 

The file:
	SO2 Values.csv
Contains regional values by year for each of these scenarios.


Please contact Steve Smith at ssmith@pnl.gov with technical questions about the
gridded sulfur data.