Extended Fire Severity : Aggregated fire severity for an ongoing multiple, long-lasting, or expansive fire situation within an operational planning horizon (e.g. one month)
The Canadian Interagency Forest Fire Centre (CIFFC), Glossary of Forest Fire Management Terms, Manitoba, Canada 2003. http://bcwildfire.ca/mediaroom/Backgrounders/2003_ Fire_Glossary.pdf, (For Fr - Canad) {474}