The density of fires is reported as the count of fires per km2 occurring into pixels of 0.1 decimal degree (the pixel dimension varies from 20 km2 at the Poles to 122 km2 at the equator). Only location points described as "presumed vegetation fire" in the attributes are included in the frequency calculation.
This layer was produced by UNEP/GRID-Geneva.
The MODIS active fire product detects fires in 1-km pixels that are burning at the time of overpass under relatively cloud-free conditions using a contextual algorithm. Please see the MODIS Active Fire Product User's Guide for detailed information about the MODIS Active Fire product suite.
Licenses
UNEP/GRID-Geneva: The data can be redistributed freely upon mention of the metadata.
NASA: NASA promotes the full and open sharing of all data with the research and applications communities, private industry, academia, and the general public. Read NASA's Data and Information Policy. If you provide NASA's Land, Atmosphere Near real-time Capability for EOS (LANCE) / Fire Information for Resource Management System (FIRMS) data to a third party, we request you follow these guidelines and replicate or provide a link to the disclaimer
Reference:
Giglio, L., Schroeder, W., & Justice, C. O. (2016). The collection 6 MODIS active fire detection algorithm and fire products. Remote Sensing of Environment, 178, 31–41. https://doi.org/10.1016/j.rse.2016.02.054