- About CDIAC
- Observing Programs
Monthly Fossil-Fuel CO2 Emissions: Isomass of Emissions Gridded by One Degree Latitude by One Degree Longitude
Note: Versions V2010 and V2009 were the versions used in the IPCC WGI AR5.
R.J. Andres and T.A. Boden
Carbon Dioxide Information Analysis Center
Environmental Sciences Division
Oak Ridge National Laboratory
Oak Ridge, Tennessee 37830-6290 U.S.A.
Research Institute for Environment, Energy and Economics
Appalachian State University
Boone, North Carolina 28608 U.S.A.
The monthly, isotopic (δ 13C) fossil-fuel CO2 emissions estimates from 1950-2010 provided in this database are derived from time series of global, regional, and national fossil-fuel CO2 emissions (Boden et al. 2013), the references therein, and the methodology described in Andres et al. (2011). The data accessible here take these tabular, national, mass-emissions data, multiply them by stable carbon isotopic signatures (δ 13C) as described in Andres et al. (2000), and distribute them spatially on a one degree latitude by one degree longitude grid. The within-country spatial distribution is achieved through a fixed population distribution as reported in Andres et al. (1996). Note that the mass-emissions data used here are based on fossil-fuel consumption estimates as these are more representative of within country emissions than fossil-fuel production estimates (see http://cdiac.ornl.gov/faq.html#Q10 for a description why emission totals based upon consumption differ from those based upon production).