Climate, lightning, and wildfire in the national forests of the southeastern United States : 1989-1998

Auteurs :
MITCHENER, L.J.
PARKER, A.J.

Description :
The AA. compiled the record of wildfires from each national forest unit in the southeastern United States for the period 1989 to 1998, then regressed annual fire numbers against lightning flash densities and measures of climatic drought (seasonal precipitation and Palmer Drought Severity Index, PDSI, values). Lightning-caused fires were most common in Florida, where seasonally-dry winters and high lightning-flash density elevate fire risk. Overall regression models consistently identified fire season PDSI as the most influential explanatory variable in accounting for the spatial and temporal pattern of fires.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 2005, vol. 26, n°. 2, p. 147-162, nombre de pages : 16, Collation : Illustration, Références bibliographiques : 30 ref.

Date :
2005

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis