Table 1 Landslide indicators and the types they belong to.
From: Prediction of landslide susceptibility through ANN models optimized by evolutionary algorithms
Factor | Classes | GIS Data Type | Scale | Classification Method |
|---|---|---|---|---|
Profile | -38.300 - -1380 | GRID | 30 m × 30 m | Natural breaks |
-1.370–770 | ||||
771–4010 | ||||
Plane | Convex | GRID | 30 m × 30 m | Natural breaks |
Flat | ||||
Concave | ||||
SPI | 0-86.790 | GRID | 30 m × 30 m | Manual |
86.800-433.900 | ||||
434.000-1.1146000 | ||||
11147.000-2343.000 | ||||
2344.000-4426000 | ||||
TWI (Topographic Wetness Index) | -7.621 - -4.053 | GRID | 30 m × 30 m | Natural breaks |
-4.052 - -1.675 | ||||
-1.674–1.892 | ||||
1.8935–14.04 | ||||
Distance to River | 200 | Line | 30 m × 30 m | Natural breaks |
400 | ||||
600 | ||||
800 | ||||
> 800 | ||||
Rainfall | 400 | GRID | 30 m × 30 m | Natural breaks |
500 | ||||
600 | ||||
700 | ||||
800 | ||||
NDVI | -3.391 - -0.0832 | GRID | 30 m × 30 m | Natural breaks |
-0.031 - -0.0222 | ||||
-0.0221 - -0.026 | ||||
0.026–0.0549 | ||||
0.055–0.427 | ||||
Slope | < 4.05 | GRID | 30 m × 30 m | Manual |
9.291 | ||||
15.49 | ||||
23.11 | ||||
> 60 | ||||
Aspect | 1-Flat, 2- North, 3- Northeast, 4- East, 5- Southeast, 6- South, 7- Southwest, 8- West, 9- Northwest, 10- North | GRID | 30 m × 30 m | Azimuth |
Land use | 1- DF (Dry farming), 2- R3 (Low density pasture), 3- IF (Irrigation and gardens), 4- BL (No vegetation), 5- R2 (Semi-dense pasture), 6- F3 (Low density forest), 7- R1 (Dense pasture), 8- RB (River bed), 9- L (Wet and juicy surface), 10- URB (Urban residential areas), 11- F1 (Density forest), 12- F2 (Semi-dense forest), 13- PF (Artificial forest), 14- SH (Shrubland), 15- RE (Canebrake) | Polygon | 1:25,000 | Natural breaks |
Geology | LX | Polygon | 1: 100,100 | Natural breaks |
VII | ||||
VI | ||||
V | ||||
IV | ||||
II | ||||
VIII | ||||
Lake | ||||
TRI (Terrain Ruggedness Index) | 0.111–0.41 | GRID | 30 m × 30 m | Natural breaks |
0.4101–0.4924 | ||||
0.4925–0.5747 | ||||
0.5748–0.8889 | ||||
STI (Sediment transport index) | 6–363.1 | GRID | 30 m × 30 m | Natural breaks |
363.2–1.670 | ||||
1.671–4.576 | ||||
4.577–9.950 | ||||
9.951–18.520 | ||||
Distance from Road | 100 | Line | 1:25,000 | Manual |
200 | ||||
300 | ||||
400 | ||||
> 500 | ||||
Distance from Fault | 100 | Line | 1: 100,100 | Manual |
200 | ||||
300 | ||||
400 | ||||
> 500 | ||||
Elevation | < 1000 | GRID | 30 m × 30 m | Natural breaks |
960 − 148 | ||||
1876 | ||||
2336 | ||||
> 3000 |
