Hestia Fossil Fuel Carbon Dioxide (FFCO2) Data Product – NE corridor domain, Version 2.0, 1km grid

The Hestia NE (northeast) corridor version 2.0 (Hestia-NEcoor v2) FFCO2 emissions data product is an update to the previous version published by Gurney et al., (2023), and represents emissions from the combustion of fossil fuels and cement production in 12 counties in the state of Maryland (6 counties), Virginia (5 counties), and the District of Columbia from 2010 to 2022. The emissions are generated using a bottom-up/engineering approach and use the results generated by the Vulcan Project (version 4), an effort to quantify space/time-resolved FFCO2 emissions for the entire United States landscape (Gurney et al., 2025), as the starting point for the more detailed Hestia analysis. A large number of local data sources are combined to best estimate FFCO2 emissions at fine scales, such as air quality emissions data, traffic flow data, building information, sociodemographic information, and fuel statistics. The native spatial resolution of the Hestia data product is a combination of points, lines, and polygons dictated primarily by the underlying data sources and the Vulcan FFCO2 emissions outputs. The output made available here places this information into a regularized grid (1km x 1km) at hourly and annual temporal resolutions. The data are provided as GeoTIFF (annual) and NetCDF (hourly) format, and are compressed into a single file (annual files) or by year (hourly files). Each contains Hestia for all sectors as indicated in the filename. Please read the readme and method documents for the data/file format and methodological details.