Vulcan: High-Resolution Annual Fossil Fuel CO2 Emissions in USA, 2010-2022

The Vulcan FFCO2 version 4.0 model was used to generate emissions using a bottom-up/engineering approach, which is best described as a fusion of data and modeling components. The native spatial resolution of the Vulcan FFCO2 emissions data product is a combination of points, lines, and polygons dictated primarily by the underlying data sources.

The FFCO2 emissions are placed into a regularized continuous gridded 1-km x 1-km landscape for ease of analysis and incorporation into atmospheric transport modeling efforts. Referred to as FFCO2, the emissions are categorized into 10 source sectors including residential, commercial, industrial, electricity production, on-road, nonroad, commercial marine vessel, airport, rail, and cement. Total emissions from all source sectors combined are included.