Detection of forest changes using ALOS PALSAR satellite images
Conference contribution, 2007

A controlled experiment has been performed to quantify the ability to detect clear-cuts using ALOS PALSAR data. The experiment consisted of 8 old spruce dominated stands with a size of about 1.5 ha, located at a test site in southern Sweden. Four of the stands were clear-felled and the remaining stands were left untreated for reference. A time series of PALSAR images were acquired prior to, during, and after treatment, including 7 Fine Beam Single polarization (FBS, look angle 34.3°, HH-polarization) SAR images. The results clearly show that the clear-felled stands could be separated from the reference stands. The drop in backscattering coefficient between the reference and the clear-felled stands was on average 2.1 dB. This implies that ALOS PALSAR data potentially can be used for large-scale mapping of changes in forest cover.

clear-cut

forest

SAR

wind-throw

change detection

ALOS

Author

J.E.S. Fransson

M. Magnusson

H. Olsson

Leif Eriksson

Chalmers, Department of Radio and Space Science, Radar Remote Sensing

Gustaf Sandberg

Chalmers, Department of Radio and Space Science, Radar Remote Sensing

Gary Smith Jonforsen

Chalmers, Department of Radio and Space Science, Radar Remote Sensing

Lars Ulander

Chalmers, Department of Radio and Space Science, Radar Remote Sensing

IEEE Geoscience and Remote Sensing Symposium (IGARSS 2007), Barcelona, Spain, July 23-27, 2007

Vol. DOI: 10.1109/IGARSS.2007.4423308 2330-2333

Subject Categories

Forest Science

More information

Created

10/7/2017