Landscape Flammability

One of the challenges to managing fire in many parts of the world is that 'traditional' wildfire risk assessment tools  (eg. fire spread modeling software like Behave and FARSITE) often don't work due to the novel fuel types and different fire-climate thresholds.  To address this limitation, we use actual fire history to model fire probability as a function of vegetation type, climate variables, human activity and other predictors.  This approach is founded on the principles of pyrogeography - the geographic space in which the given combination of vegetation, climate, and ignition sources (the majority of which are people) determine fire occurrence.  But the model outcomes are highly applied.  We are currently using fire occurrence models in Hawaii to inform watershed protection and restoration planning.  There is great potential to apply this type of approach elsewhere where the applicability of more sophisticated fire spread models is limited.

2016 Nanakuli Fire
Vegetation affected by 2016 Nanakuli Fire
MODIS hotspots in Fiji 2002-2014
The satellite-borne Moderate-resolution Imaging spectroradiometer instrument (MODIS) provides a powerful tool to track, map and analyze fire occurrence and fire history, especially for parts of the world where fire records are difficult to obtain.
LANDSAT image of Makakilo Fire, Oahu
Hawaii's difficult terrain constrain the accuracy of ground and aerial based fire mapping. Remotely sensed imagery can improve fire mapping and impact assessment.
Show More