Title :
A comparative study of coherence information by L-band and C-band SAR for detecting deforestation in tropical rain forest
Author :
Takeuchi, Shoji ; Suga, Yuzo ; Yoshimura, Motohide
Author_Institution :
Hiroshima Inst. of Technol., Japan
Abstract :
The author studied the applicability of coherence information by C-band SAR from ERS-1 and 2 together with by L-band SAR from JERS-1 for the purpose of monitoring the changes of tropical rain forest due to deforestation. The test site was a southern part of Sumatra Island with 50 by 50 kilometers coverage. The results of this study indicated that the coherence obtained from a repeat-pass pair by C-band SAR was almost useless due to its extremely poor quality. On the other hand, the coherence obtained from a repeat-pass pair by L-band SAR was proved to be useful for identifying the deforested areas together with the coherence obtained from a tandem pair by ERS-1/2. This result suggests the usefulness and the importance of repeat-pass interferometry by L-band SAR like ALOS/PALSAR for the purpose of monitoring tropical rain forest changes
Keywords :
forestry; geophysical techniques; remote sensing by radar; spaceborne radar; synthetic aperture radar; vegetation mapping; C-band; ERS-1; ERS-2; InSAR; JERS-1; L-band; SAR; SAR interferometry; SHF; Sumatra; UHF; change; coherence; deforestation; deforested area; forest loss; geophysical measurement technique; radar remote sensing; rainforest; repeat-pass pair; spaceborne radar; synthetic aperture radar; tandem pair; tropical forest; vegetation mapping; L-band; Monitoring; Rain; Synthetic aperture radar interferometry; Testing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.977968
