DocumentCode :
3444651
Title :
Understanding the enhanced backscatter of coastal forest plantation in L-band synthetic aperture radar images
Author :
Ling, Feilong ; Dai, Yufang
Author_Institution :
Spatial Inf. Res. Center, Fuzhou Univ., Fuzhou, China
fYear :
2012
fDate :
2-4 Aug. 2012
Firstpage :
1
Lastpage :
4
Abstract :
Forests usually present medium radar backscatter in SAR images; however, they can have extremely high backscatter if ground-trunk dihedral reflection cannot be neglected. In this paper, we demonstrated the extremely enhanced backscatter in L-band ALOS PALSAR image of a coastal forest plantation in Zhangpu, China. With the revised water cloud model and field measurements, we explained the mechanisms for the enhance backscatter. It is due to the ground-trunk corner reflector because of the internal structure of the forest and strong penetration of the L-band microwaves, and the high wetness of the forest understory. The understanding presented in this paper is useful for choosing the models and information retrieval methods to monitor this kind of forest.
Keywords :
radar imaging; synthetic aperture radar; vegetation; China; L-band ALOS PALSAR image; L-band SAR images; L-band microwaves; Zhangpu; coastal forest plantation; forest internal structure; forest understory; ground-trunk corner reflector; ground-trunk dihedral reflection; radar backscatter; synthetic aperture radar; water cloud model; Backscatter; L-band; Scattering; Sea measurements; Synthetic aperture radar; L-band; SAR; forest plantation; scattering mechanism;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Agro-Geoinformatics (Agro-Geoinformatics), 2012 First International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-2495-3
Electronic_ISBN :
978-1-4673-2494-6
Type :
conf
DOI :
10.1109/Agro-Geoinformatics.2012.6311619
Filename :
6311619
Link To Document :
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