Landslide Assessment & Prevention of Future Risks
Monts BAMBOUTOS, CAMEROON
A radar view of the great Bamboutos caldera
RADARSAT-1, November 2003
The RADARSAT-1 Synthetic Aperture Radar (SAR) image shown below has been
acquired on November 11, 2003 (standart beam S7). The processing applied to the
original SAR image is as follows:
The subset of the processed RADARSAT-1 image that is shown below covers a 22.5 x 22.5 kilometers wide area. It shows the great caldera of the Monts Bamboutos. It is shown here at a spatial resolution of 30 meters x 30 meters, to enable the comparison with the LANDSAT-7 ETM+ processed image.
The information content of the two images is dramatically different, and complementary :
In the RADARSAT-1 image, the perception of relief (mountains and slopes) is
In the present context (landslide events), this represents an important information that complements obviously the thematic information contained in the LANDSAT-7 ETM+ processed image (shown below the RADARSAT-1 image), for the identification of future potential threats. Another remarkable feature with respect to the LANDSAT-7 ETM+ optical image, is the insensitivity of the RADARSAT-1 radar image to the eventual presence of cloud cover.
Produced by PARBLEU TECHNOLOGIES Inc.
Operational partners of PARBLEU TECHNOLOGIES Inc. :
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Copyright (C) PARBLEU Technologies Inc., 2004