Emission factors used in the RAVE product are averaged from reported emission factor values for North American fires compiled in two recent emission factor datasets (Akagi et al. 2011; Andreae. 2019). Note that the global average value from Andreae (2019) was used directly if the number of studies for North America fires was less than three for a given species.
The RAVE product provides a 3 km land cover map that is aggregated from the 500 m MODIS land cover product in 2019. It consists of five main land cover types:
Forest (evergreen needleleaf and broadleaf, deciduous needleleaf and broadleaf, and mixed forests)
Shrubland (closed and open shrublands)
Savannas (savannas and woody savannas)
Grassland (grasslands and permanent wetlands)
Cropland (croplands and cropland-natural vegetation mosaics)
The 3-km ecoregion map is generated from the Level I North America ecoregions developed by the United States Environmental Protection Agency (EPA).
