Official Journal of the Asia Oceania Geosciences Society (AOGS)
Parameter | Class | No. of landslide | % of landslide | No. of pixels in domain | % of domain | FR | SI | |
---|---|---|---|---|---|---|---|---|
1 | Slope (Degree) | 0–5 | 12 | 3.59 | 43,627 | 5.86 | 0.61 | − 0.49 |
5–10 | 41 | 12.28 | 119,918 | 16.10 | 0.76 | − 0.27 | ||
10–15 | 71 | 21.26 | 163,382 | 21.93 | 0.97 | − 0.03 | ||
15–20 | 71 | 21.26 | 175,950 | 23.62 | 0.90 | − 0.11 | ||
20–25 | 71 | 21.26 | 121,309 | 16.28 | 1.31 | 0.27 | ||
25< | 68 | 20.36 | 120,811 | 16.22 | 1.26 | 0.23 | ||
2 | Slope aspect | Flat | 0 | 0.00 | 1308 | 0.18 | 0.00 | None |
North | 9 | 2.69 | 52,881 | 7.10 | 0.38 | − 0.97 | ||
Northeast | 13 | 3.89 | 56,363 | 7.57 | 0.51 | − 0.66 | ||
East | 22 | 6.59 | 45,126 | 6.06 | 1.09 | 0.08 | ||
Southeast | 75 | 22.46 | 99,730 | 13.39 | 1.68 | 0.52 | ||
South | 84 | 25.15 | 136,654 | 18.34 | 1.37 | 0.32 | ||
Southwest | 41 | 12.28 | 98,417 | 13.21 | 0.93 | − 0.07 | ||
West | 35 | 10.48 | 92,398 | 12.40 | 0.84 | − 0.17 | ||
Northwest | 38 | 11.38 | 110,164 | 14.79 | 0.77 | − 0.26 | ||
North | 17 | 5.09 | 51,956 | 6.97 | 0.73 | − 0.31 | ||
3 | Curvatuer | Concave | 112 | 33.53 | 280,770 | 37.69 | 0.89 | − 0.12 |
Flat | 79 | 23.65 | 179,517 | 24.10 | 0.98 | − 0.02 | ||
Convex | 143 | 42.81 | 284,710 | 38.22 | 1.12 | 0.11 | ||
4 | Plan curvature | Concave | 89 | 26.65 | 235,248 | 31.58 | 0.84 | − 0.17 |
Flat | 111 | 33.23 | 264,520 | 35.51 | 0.94 | − 0.07 | ||
Convex | 134 | 40.12 | 245,229 | 32.92 | 1.22 | 0.20 | ||
5 | Profile curvature | Concave | 122 | 36.52 | 248,078 | 33.30 | 1.10 | 0.09 |
Flat | 118 | 35.32 | 250,650 | 33.64 | 1.05 | 0.05 | ||
Convex | 94 | 28.14 | 246,269 | 33.06 | 0.85 | − 0.16 | ||
6 | Elevation | <200 | 3 | 0.89 | 8707 | 1.17 | 0.77 | − 0.26 |
200–400 | 16 | 4.79 | 85,598 | 11.49 | 0.42 | − 0.87 | ||
400–600 | 55 | 16.46 | 177,848 | 23.87 | 0.69 | − 0.37 | ||
600–800 | 106 | 31.73 | 193,667 | 26.00 | 1.22 | 0.20 | ||
>800 | 154 | 46.10 | 279,177 | 37.47 | 1.23 | 0.21 | ||
7 | NDVI | <0.1 | 1 | 0.299 | 4402 | 0.59 | 0.51 | − 0.68 |
0.1–0.3 | 21 | 6.28 | 133,083 | 17.86 | 0.35 | − 1.04 | ||
0.3–0.6 | 201 | 60.18 | 375,287 | 50.37 | 1.19 | 0.18 | ||
>0.6 | 111 | 33.23 | 232,225 | 31.17 | 1.07 | 0.06 | ||
8 | Proximity to faults | <100 | 44 | 13.17 | 101,919 | 13.68 | 0.96 | − 0.04 |
100–200 | 47 | 14.07 | 97,725 | 13.12 | 1.07 | 0.07 | ||
200–300 | 39 | 11.67 | 90,056 | 12.09 | 0.97 | − 0.03 | ||
300–400 | 28 | 8.38 | 81,158 | 10.89 | 0.77 | − 0.26 | ||
>400 | 176 | 52.69 | 374,139 | 50.22 | 1.05 | 0.05 | ||
9 | Proximity to rivers | <100 | 130 | 38.92 | 261,091 | 35.05 | 1.11 | 0.10 |
100–200 | 127 | 38.02 | 213,740 | 28.69 | 1.33 | 0.28 | ||
200–300 | 52 | 15.56 | 161,657 | 21.70 | 0.72 | − 0.33 | ||
300–400 | 20 | 5.98 | 85,007 | 11.41 | 0.52 | − 0.64 | ||
>400 | 5 | 1.49 | 23,502 | 3.15 | 0.47 | − 0.75 | ||
10 | Proximity to roads | <100 | 42 | 12.57 | 210,599 | 28.27 | 0.44 | − 0.81 |
100–200 | 49 | 14.67 | 149,672 | 20.09 | 0.73 | − 0.31 | ||
200–300 | 39 | 11.67 | 104,913 | 14.08 | 0.83 | − 0.19 | ||
300–400 | 45 | 13.47 | 70,282 | 9.43 | 1.43 | 0.36 | ||
>400 | 159 | 47.60 | 209,531 | 28.13 | 1.69 | 0.53 | ||
11 | Rainfall | <1000 | 6 | 1.796 | 32,050 | 4.30 | 0.42 | − 0.87 |
1000–1100 | 23 | 6.88 | 78,308 | 10.51 | 0.66 | − 0.42 | ||
1100–1200 | 41 | 12.27 | 136,634 | 18.34 | 0.67 | − 0.40 | ||
1200–1300 | 44 | 13.17 | 141,577 | 19.00 | 0.69 | − 0.37 | ||
>1300 | 220 | 65.86 | 356,428 | 47.84 | 1.38 | 0.32 | ||
12 | Lithology | C2-3 | 6 | 1.7 | 32,186 | 4.32 | 0.42 | − 0.88 |
J3 | 24 | 7.18 | 63,649 | 8.54 | 0.84 | − 0.17 | ||
C3 | 85 | 25.44 | 221,036 | 29.67 | 0.86 | − 0.15 | ||
Bc3 | 6 | 1.79 | 55,183 | 7.41 | 0.24 | − 1.42 | ||
BN2-b | 1 | 0.29 | 21,363 | 2.87 | 0.10 | − 2.26 | ||
C4s | 47 | 14.07 | 143,762 | 19.30 | 0.73 | − 0.32 | ||
C4b | 0 | 0 | 4313 | 0.58 | 0.00 | None | ||
J2 | 146 | 43.71 | 180,214 | 24.19 | 1.81 | 0.59 | ||
J1-2 | 19 | 5.68 | 23,291 | 3.13 | 1.82 | 0.60 | ||
13 | TWI | <3 | 292 | 87.42 | 619,173 | 83.11 | 1.05 | 0.05 |
3–6 | 35 | 10.47 | 101,664 | 13.65 | 0.77 | − 0.26 | ||
6–9 | 3 | 0.89 | 15,841 | 2.13 | 0.42 | − 0.86 | ||
>9 | 4 | 1.19 | 8319 | 1.12 | 1.07 | 0.07 |