Observations of variations in ERS-1 SAR image intensity associated with forest fires in Alaska

Author

Kasischke, Eric S. ; Bourgeau-Chavez, Laura L. ; French, Nancy H F

Author_Institution

Center for Earth Sci., Environ. Res. Inst. of Michigan, Ann Arbor, MI, USA

Volume

32

Issue

1

fYear

1994

fDate

1/1/1994 12:00:00 AM

Firstpage

206

Lastpage

210

Abstract

Investigations have shown that fires in boreal forests result in characteristic responses which are recorded on ERS-1 SAR imagery. Using one of the many fire signatures observed on ERS-1 SAR imagery, the analysis of the data revealed there is >10 dB in variation in image intensity within the burned areas on the SAR images. Possible explanations for this variation include increases in soil moisture, increased surface roughness exposed to the incoming microwave radiation, and damage to the vegetation canopy by the fire

Keywords

fires; forestry; geophysical techniques; remote sensing; remote sensing by radar; synthetic aperture radar; Alaska; ERS-1; SAR; SHF; USA; United States; backscatter intensity; boreal; burned area; fire signature; forest fire; forestry; geophysical measurement technique; image intensity; imagery; land surface remote sensing; microwave; radar cross section; soil moisture; surface roughness; synthetic aperture radar; vegetation; Data analysis; Dielectrics; Fires; Microwave radiometry; Microwave theory and techniques; Remote sensing; Soil moisture; State estimation; Surfaces; Vegetation mapping;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.285204

Filename

285204