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TitleOn the Use of Radarsat and JERS-1 Satellite SARs for Trail and Road Detection in Tropical Rainforests
DownloadDownloads (Preprint)
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorTouzi, R; Sasitiwarih, A
SourceIGARSS'98, Seatle, Washington, July 6-10; 1998 p. 4, Open Access logo Open Access
Alt SeriesEarth Sciences Sector, Contribution Series 20042558
Mediapaper; on-line; digital
File formatpdf
Released1998 01 01
AbstractThe basic imaging geometry of the SAR is considered for the study of trail and road detectability in imagery of rainforests with no significant topographic relief, as a function of the SAR parameters and trail (or road) widths and their orientation relative to the SAR viewing direction. The results are confirmed experimentally on a dense forest site in the south of Sumatra, Indonesia, using the multi-resolution capability of Radarsat. The best trail detectability was obtained with the fine modes at the highest incidence angle. The use of both ascending and descending fine modes permits even the detection of 5 to 6 m wide trails under particular conditions. The same trails could not be detected using JERS-1 satellite SAR of coarser resolution. The resolution dominates trail detectability and the use of a longer wavelength (L-band for HERS-1) does not allow the resolution of narrow trails.

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