Contribution form remote sensing
in updating bathymetric chart
Table 1 Calibration results for the data sets
SPOT
TM
Calibration
R
0.59
0.57
RMS (m)
4.7
4.6
Table 2 Validation results for the data sets
SPOT
TM
Validation
R
0.31
0.54
RMS (m)
6.5
5.12
(a)
(b)
Figure 1 Intensity versus depth for (a) TM and (b) SPOT data (solid circles for band 1, circle for band 2 and solid triangle for band 3)
(a)
(b)
(c)
Figure 2 Bathymetic maps (a) using measured depth sounding points, (b) TM, and (c) SPOT data (colour code: blue 0-5m, green 5-10m, yellow 10-15m and orange>15m)
