Flood Detection and Susceptibility Mapping Using Sentinel-1 Time Series, Alternating Decision Trees, and Bag-ADTree Models
Table 1
The floods-affecting parameters, source, classes, and scale.
Layers
Source
Number of classes
Scale (m)
Slope
DEM
0°–5.8°, 5.9°–13°, 14°–21°, 22°–30°, and 31°–71°.
30 30
Elevation
DEM
522–778, 778.1–910, 910.1–1080, 1081–1313, and 1314–1936.
30 30
Aspect
DEM
Flat (−1), north (0–22.5 and 337.5–360), northeast (22.5–67.5), east (67.5–112.5), southeast (112.5–157.5), south (157.5–202.5), southwest (202.5–247.5), west (247.5–292.5), and northwest (292.5–337.5).
30 30
Curvature
DEM
Concave, flat, and convex.
30 30
SPI
DEM
0–600, 600.1–2000, 2001–4000, 4001–8000, and >8000.