Spatial implementation of frequency ratio, statistical index and index of entropy models for landslide susceptibility mapping in Al-Balouta river basin, Tartous Governorate, Syria

Abdo, Hazem Ghassan; Almohamad, Hussein; Al Dughairi, Ahmed Abdullah; Ali, Sk Ajim; Parvin, Farhana; Elbeltagi, Ahmed; Costache, Romulus; Mohammed, Safwan; Al-Mutiry, Motrih; Alsafadi, Karam

doi:10.1186/s40562-022-00256-5

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 4 Important factors for landslide susceptibility assessment in the study area with lower IoE value

From: Spatial implementation of frequency ratio, statistical index and index of entropy models for landslide susceptibility mapping in Al-Balouta river basin, Tartous Governorate, Syria

	Parameter	Class	% of landslide	% of domain	\(P_{rs}\)	(\(P_{rs}\))	\(E_s\)	\(E_{smax}\)	\(I_s\)	\(W_f\)
1	Slope (Degree)	0–5	3.59	5.86	0.61	0.11	0.34	2.58	0.02	0.02
		5–10	12.28	16.10	0.76	0.13	0.38
		10–15	21.26	21.93	0.97	0.17	0.43
		15–20	21.26	23.62	0.90	0.16	0.42
		20–25	21.26	16.28	1.31	0.22	0.48
		25<	20.36	16.22	1.26	0.22	0.48
2	Slope aspect	Flat	0.00	0.18	0.00	0.00	0.00	3.32	0.08	0.07
		North	2.69	7.10	0.38	0.05	0.20
		Northeast	3.89	7.57	0.51	0.06	0.25
		East	6.59	6.06	1.09	0.13	0.38
		Southeast	22.46	13.39	1.68	0.20	0.47
		South	25.15	18.34	1.37	0.17	0.43
		Southwest	12.28	13.21	0.93	0.11	0.35
		West	10.48	12.40	0.84	0.10	0.34
		Northwest	11.38	14.79	0.77	0.09	0.32
		North	5.09	6.97	0.73	0.09	0.31
3	Curvature	Concave	33.53	37.69	0.89	0.30	0.52	1.58	0.004	0.004
		Flat	23.65	24.10	0.98	0.33	0.53
		Convex	42.81	38.22	1.12	0.37	0.53
4	Plan curvature	Concave	26.65	31.58	0.84	0.28	0.51	1.58	0.01	0.01
		Flat	33.23	35.51	0.94	0.31	0.52
		Convex	40.12	32.92	1.22	0.41	0.53
5	Profile curvature	Concave	36.53	33.30	1.10	0.37	0.53	1.58	0.01	0.04
		Flat	35.33	33.64	1.05	0.35	0.53
		Convex	28.14	33.06	0.85	0.28	0.52
6	Elevation	<200	0.90	1.17	0.77	0.18	0.44	2.32	0.04	0.04
		200–400	4.79	11.49	0.42	0.10	0.33
		400–600	16.47	23.87	0.69	0.16	0.42
		600–800	31.74	26.00	1.22	0.28	0.52
		>800	46.11	37.47	1.23	0.28	0.52
7	NDVI	<0.1	0.30	0.59	0.51	0.16	0.43	2.00	0.08	0.06
		0.1–0.3	6.29	17.86	0.35	0.11	0.36
		0.3–0.6	60.18	50.37	1.19	0.38	0.53
		>0.6	33.23	31.17	1.07	0.34	0.53
8	Proximity to faults	<100	13.17	13.68	0.96	0.20	0.46	2.31	1.31	1.26
		100–200	14.07	13.12	1.07	0.22	0.48
		200–300	11.68	12.09	0.97	0.20	0.46
		300–400	8.38	10.89	0.77	0.16	0.42
		>400	52.69	50.22	1.05	0.22	0.48
9	Proximity to rivers	<100	38.92	35.05	1.11	0.27	0.51	2.20	1.20	0.99
		100–200	38.02	28.69	1.33	0.32	0.53
		200–300	15.57	21.70	0.72	0.17	0.44
		300–400	5.99	11.41	0.52	0.13	0.38
		>400	1.50	3.15	0.47	0.11	0.36
10	Proximity to roads	<100	12.57	28.27	0.44	0.09	0.31	2.17	1.17	1.19
		100–200	14.67	20.09	0.73	0.14	0.40
		200–300	11.68	14.08	0.83	0.16	0.43
		300–400	13.47	9.43	1.43	0.28	0.51
		>400	47.60	28.13	1.69	0.33	0.53
11	Rainfall	<1000	1.80	4.30	0.42	0.11	0.35	2.2	1.20	0.91
		1000–1100	6.89	10.51	0.66	0.17	0.44
		1100–1200	12.28	18.34	0.67	0.18	0.44
		1200–1300	13.17	19.00	0.69	0.18	0.45
		>1300	65.87	47.84	1.38	0.36	0.53
12	Lithology	C2-3	1.80	4.32	0.42	0.06	0.25	2.62	1.62	1.22
		J3	7.19	8.54	0.84	0.12	0.37
		C3	25.45	29.67	0.86	0.13	0.38
		Bc3	1.80	7.41	0.24	0.04	0.17
		BN2-b	0.30	2.87	0.10	0.02	0.09
		C4s	14.07	19.30	0.73	0.11	0.34
		C4b	0.00	0.58	0.00	0.00	0.00
		J2	43.71	24.19	1.81	0.27	0.51
		J1-2	5.69	3.13	1.82	0.27	0.51
13	TWI	<3	87.43	83.11	1.05	0.32	0.53	1.91	0.90	0.74
		3–6	10.48	13.65	0.77	0.23	0.49
		6–9	0.90	2.13	0.42	0.13	0.38
		>9	1.20	1.12	1.07	0.32	0.53

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