volume scattering difference between bare/sparsely vegetated
land and water. As surface roughness is a relative concept
depending on
SAR
wavelength (Park
et al.
2009), the same sur-
face can be relatively rougher for the C-band
SAR
than for the
L-band
SAR
. Therefore, the C-band image was more sensitive
to the difference in volume scattering between bare/sparsely
vegetated land and water than the L-band data, and the com-
bination of C- and L-band images outperformed the sole use
of L-band data in distinguishing bare/sparsely vegetated land
and water (Figure 6a).
Figure 5. Land cover classification results obtained using the (a)
TerraSAR-X
,
RADARSAT-2
, and
PALSAR
images; (b)
RADARSAT-2
and
PALSAR
images; (c)
TerraSAR-X
and
PALSAR
images; (d)
TerraSAR-X
and
RADARSAT-2
images; (e)
TerraSAR-X
image; (f)
RADARSAT-2
image; and (g)
PALSAR
image.
PHOTOGRAMMETRIC ENGINEERING & REMOTE SENSING
November 2019
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