OBSERVATIONS OF VARIATIONS IN ERS-1 SAR IMAGE INTENSITY ASSOCIATED WITH FOREST-FIRES IN ALASKA

Authors
KASISCHKE ES BOURGEAUCHAVEZ LL FRENCH NHF
Citation
Es. Kasischke et al., OBSERVATIONS OF VARIATIONS IN ERS-1 SAR IMAGE INTENSITY ASSOCIATED WITH FOREST-FIRES IN ALASKA, IEEE transactions on geoscience and remote sensing, 32(1), 1994, pp. 206-210
Citations number
15
Categorie Soggetti
Engineering, Eletrical & Electronic","Geosciences, Interdisciplinary","Remote Sensing
Journal title
IEEE transactions on geoscience and remote sensing → ACNP
ISSN journal
01962892
Volume
32
Issue
1
Year of publication
1994
Pages
206 - 210
Database
ISI
SICI code
0196-2892(1994)32:1<206:OOVIES>2.0.ZU;2-E
Abstract
Investigations have shown that fires in boreal forests result in chara cteristic responses which are recorded on ERS-1 SAR imagery. Using one many fire signatures observed on ERS-1 SAR imagery, the analysis of t he data revealed there is >10 dB in variation in image intensity withi n the burned areas on the SAR images. Possible explanations for this v ariation include increases in soil moisture, increased surface roughne ss exposed to the incoming microwave radiation, and damage to the vege tation canopy by the fire.