Variable

Classes

Variable description

N. of total pixel

N. of pixel with landslide

N. of pixel without landslide

Landslide distribution

0/1

Absence/presence phenomenon

1,520,450 (100.0%)

9840 (0.6%)

1,510,610 (99.4%)

Lithology

1

Quaternary deposits

239,216 (100.0%)

645 (0.3%)

238,571 (99.7%)

2

Quaternary cemented deposits

19,328 (100.0%)

248 (1.3%)

19,080 (98.7%)

3

Flysch deposits

370,870 (100.0%)

3272 (0.9%)

367,598 (99.1%)

4

Marly limestones

200,747 (100.0%)

2998 (1.5%)

197,749 (98.5%)

5

Marls and clay marls

15,808 (100.0%)

529 (3.3%)

15,279 (96.7%)

6

Limestones, marls and clays alternations

105,007 (100.0%)

1360 (1.3%)

103,647 (98.7%)

7

Stratified limestone

544,635 (100.0%)

1630 (0.3%)

543,005 (99.7%)

8

Dolostones

24,839 (100.0%)

523 (2.1%)

24,316 (97.9%)

Seismic acceleration (g*100)

1

22 - 23

26,619 (100.0%)

256 (1.0%)

26,363 (99.0%)

2

24

164,621 (100.0%)

1951 (1.2%)

162,670 (98.8%)

3

25

969,836 (100.0%)

6106 (0.6%)

963,730 (99.4%)

4

26

359,374 (100.0%)

2892 (0.8%)

356,482 (99.2%)

DTM (m a.s.l.)

1

449-700

60,107 (100.0%)

1333 (2.2%)

58,774 (97.8%)

2

700-900

355,118 (100.0%)

3147 (0.9%)

351,971 (99.1%)

3

900-1,100

473416 (100.0%)

4488 (0.9%)

468928 (99.1%)

4

1,100-1,300

315,147 (100.0%)

1395 (0.4%)

313,752 (99.6%)

5

1,300-1,500

201,476 (100.0%)

561 (0.3%)

200,915 (99.7%)

6

1,500-2,150

115,186 (100.0%)

281 (0.2%)

114,905 (99.8%)

Slope (˚)

1

0 - 5

268,839 (100.0%)

229 (0.1%)

268,610 (99.9%)

2

5 - 10

182,601 (100.0%)

855 (0.5%)

181,746 (99.5%)

3

10 - 20

439,473 (100.0%)

4782 (1.1%)

434,691 (98.9%)

4

20 - 30

400377 (100.0%)

3152 (0.8%)

397225 (99.2%)

5

30 - 40

185,410 (100.0%)

1605 (0.9%)

183,805 (99.1%)

6

40 - 50

38,752 (100.0%)

551 (1.4%)

38,201 (98.6%)

7

50 - 75

4998 (100.0%)

31 (0.6%)

4967 (99.4%)

Aspect (˚)

1

0 - 90

445,836 (100.0%)

3656 (0.8%)

442,180 (99.2%)

2

90 - 180

350,739 (100.0%)

2243 (0.6%)

348,496 (99.4%)

3

180 - 270

419353 (100.0%)

2033 (0.5%)

417,320 (99.5%)

4

270 - 360

304,522 (100.0%)

3273 (1.1%)

301,249 (98.9%)

Terrain curvature

1

−81/−1.50 (concave)

143,594 (100.0%)

1482 (1.0%)

142,112 (99.0%)

2

−1.50/1.50 (flat)

1,228,190 (100.0%)

8614 (0.7%)

1,219,576 (99.3%)

3

1.50/66 (convex)

148,666 (100.0%)

1109 (0.7%)

147,557 (99.3%)

Pluviometry (mm)

1

93 - 102

117,924 (100.0%)

948 (0.8%)

116,976 (99.2%)

2

102 - 115

496,469 (100.0%)

3730 (0.8%)

492,739 (99.3%)

3

115 - 128

310,874 (100.0%)

2427 (0.8%)

308,447 (99.2%)

4

128 - 157

595,183 (100.0%)

4100 (0.7%)

591,083 (99.3%

Land use

1

Artificial surfaces

12,986 (100.0%)

148 (1.1%)

12,838 (98.9%)

2

Permanent crops

189,538 (100.0%)

332 (0.2%)

189,206 (99.8%)

3

Agricoltural areas

118,367 (100.0%)

1037 (0.9%)

117,330 (99.1%)

4

Forests

797,509 (100.0%)

6129 (0.8%)

791,380 (99.2%)