Scale factors for anthropogenic emissions

NOTE: Page under construction!

Overview

From van Donkelaar et al., ACPD, 8, 4017-4057, 2008:

"We scale all regional and global inventories from their respective base year to 2003, the last year of available statistics, unless its base year is after 2003. Our approach follows Bey et al. (2001) and Park et al. (2004). Emissions are scaled according to estimates provided by individual countries, where available. These countries/regions include the United States, Canada, Japan and Europe. NOx emissions of remaining countries are scaled proportional to changes in total CO2 emissions. SOx emissions are similarly scaled to solid fuel CO2 emissions and CO emissions to liquid fuel CO2 emissions. CO2 emission data are obtained from the Carbon Dioxide Information Analysis Center (CDIAC).” Note that the scale factor have been updated since that paper to go up to 2005, and are based on REAS data now for South East Asia: Relative changes in the REAS inventory (Ohara et al., ACP, [2007], http://www.jamstec.go.jp/frsgc/research/d4/reas_h_a.html) over East Asia have been used. This should be a good improvement as REAS emissions are gridded, rather than national scale emissions, giving us much better spatial detail. Also, these scalars are now based on actual NOx, SOx and CO emission estimates, not strictly an assumed proportionality between total, solid and liquid CO2 emissions.

References

1. Anthropogenic emissions inventories in GEOS-Chem v8-02-03 (and higher versions)
2. Anthropogenic emissions inventories used in GEOS-Chem v8-01-04 thru v8-02-02
3. Anthropogenic emissions inventories prior to GEOS-Chem v8-01-01