Title :
Backscatter signatures of wind-thrown forest in satellite SAR images
Author :
Eriksson, Leif E B ; Fransson, Johan E S ; Soja, Maciej J. ; Santoro, Maurizio
Author_Institution :
Dept. of Earth & Space Sci., Chalmers Univ. of Technol., Gothenburg, Sweden
Abstract :
Two field experiments have been conducted in Sweden to allow an evaluation of the backscatter signatures of wind-thrown forest from L-band, C-band and X-band Synthetic Aperture Radar. When the trees are felled the backscattered signal from TerraSAR-X (X-band) increase with about 1.5 dB, while for ALOS PALSAR (L-band) a decrease with the same amount is observed. Radar images with fine spatial resolution also show shadowing effects that should be possible to use for identification of storm felled forest.
Keywords :
geophysical image processing; geophysical techniques; radar imaging; remote sensing by radar; vegetation; ALOS PALSAR; C-band synthetic aperture radar; L-band synthetic aperture radar; Sweden; TerraSAR-X; X-band synthetic aperture radar; backscatter signatures; radar images; satellite SAR images; storm felled forest identification; wind-thrown forest; Backscatter; Satellites; Shadow mapping; Spaceborne radar; Storms; Synthetic aperture radar; Vegetation; Synthetic Aperture Radar; clear-cut; forestry; storm damage; wind-throw;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6352732
