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

Volume

5

fYear

2001

fDate

2001

Firstpage

2259

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-7031-7

Type

conf

DOI

10.1109/IGARSS.2001.977968

Filename

977968