Mapping of wind-thrown forests using satellite SAR images
Conference contribution, 2010

The study focuses on investigation and evaluation of wind- thrown forest mapping using satellite remotely sensed data from three synthetic aperture radar (SAR) sensors. The study is carried out at Remningstorp, a test site in the south of Sweden dominated by coniferous forest, where trees were manual felled to simulate wind-thrown forest. The satellite data consisted of time series of HH polarized SAR images acquired by the Advanced Land Observing Satellite (ALOS) Phased Array type L-band Synthetic Aperture Radar (PALSAR), Radarsat-2 (C-band) and TerraSAR-X (X- band). The results from visual interpretation of SAR images acquired before and after the simulated wind-throw together with corresponding ratio images show that ALOS PALSAR HH polarized intensity images are not able to detect wind- thrown forest, probably due to too coarse spatial resolution. In contrast, the wind-thrown forest is clearly visible in the Radarsat-2 and TerraSAR-X HH polarized images, implying that it may be possible to develop a new application using these SAR data for mapping of wind-thrown forests.

Synthetic aperture radar

forest

storm damage

change detection

Author

J.E.S. Fransson

Swedish University of Agricultural Sciences (SLU)

Andreas Pantze

Swedish University of Agricultural Sciences (SLU)

Leif Eriksson

Chalmers, Earth and Space Sciences, Radar Remote Sensing

Maciej Soja

Chalmers, Earth and Space Sciences, Radar Remote Sensing

M. Santoro

Proceedings of IGARSS 2010 Symposium, Remote Sensing: Global Vision for Local Action, Honolulu, Hawaii, USA, 25-30 July, 2010

1242-1245 5654183
978-1-4244-9564-1 (ISBN)

Driving Forces

Sustainable development

Subject Categories

Aerospace Engineering

Agricultural Science

Roots

Basic sciences

DOI

10.1109/IGARSS.2010.5654183

ISBN

978-1-4244-9564-1

More information

Latest update

4/11/2018