The spatial resolution for UAVSAR and TerraSAR
imagery are 5.5m and 1m respectively. This research focuses
on analyzing the ability of each polarization channel in
identifying the landslides with different frequency bands of
synthetic aperture radar imagery. The UAVSAR multi
polarized, multi-look radar image acquired on 25 January,
2010 and the TerraSAR-X dual polarized high resolution
spotlight imagery acquired on 15 September, 2010 were used
in the analysis. In this study, the HH and VV backscattering
behavior of X-band and L-band radar backscatter from the
landslide has been investigated.
A. Study Area
The study area is a stretch of 230 km of levees along the
lower Mississippi River along the western boundary of the
state of Mississippi. At the time of image acquisition there was
one active landslide (latitude 32.5685, longitude -91.0393)
north of Vicksburg, Mississippi. A subset of 0.7 km length
containing this active landslide was chosen as the area of
analysis. The geo-referenced layers used in the analyses have
been masked by a 40 meter buffer from the crown of the levee
on the river side (where the landslides primarily occur). The
ground truth data was collected by the US Army Corp. of
Engineers (USACE) and the landslide polygons were drawn
using a GPS instrument during field data collection trips. This
data contains the location and timing of landslide appearance,
dimensions of the landslides, and their repair status.