Low-Cost Solutions for Assessment of Flash Flood Impacts Using Sentinel-1/2 Data Fusion and Hydrologic/Hydraulic Modeling: Wadi El-Natrun Region, Egypt

Table 2

The hydrologic parameters and morphometric properties of the main basins and subbasins

Main basin	Area (km)	Peak flow	Time of peak (minutes)	Volume of water (m^3)	TLAG (h)	Tc (h)	CN	Rr	Dd	Rn	No. of subbasins	Peak flow of subbasin
1	1353.01	73.16	705	2374708.05	10.66	17.77	80.10	0.003	0.911	0.202	4	1 = 13.88, 2 = 13.55, 3 = 18.85, 4 = 8.50
2	26.77	27.01	345	368124.30	1.15	1.92	85	0.002	0.82	0.11	3	1 = 2.85, 2 = 4.38, 3 = 5.83, 4 = 5.6
3	31.67	29.85	360	428023.80	1.55	2.58	84.5	0.01	1.15	0.16	4	1 = 6.05, 2 = 1.66, 3 = 2.17, 4 = 3.24
4	71.49	44.15	360	891611.10	2.74	4.57	84.61	0.01	1.08	0.18	7	1 = 1.28, 2 = 0.99, 3 = 1.02, 4 = 1.31, 5 = 0.99, 6 = 1, 7 = 1.52
5	71.42	45.09	345	836328.60	2.88	4.80	83.4	0.008	0.97	0.19	10	1 = 1.05, 2 = 2.79, 3 = 1.72, 4 = 3.1, 5 = 2.28, 6 = 3.48, 7 = 1.00, 8 = 2.28, 9 = 1.6, 10 = 1.04
6	14.52	11.43	360	162930.60	1.73	2.88	84.23	0.012	0.861	0.162	1	1 = 4.49
7	43.90	12.34	405	223307.10	2.97	4.95	82.65	0.012	1.17	0.249	4	1 = 1.48, 2 = 0.70, 3 = 0.71, 4 = 2.22
8	16.24	3.72	450	70902.00	2.84	4.73	82.32	0.012	1.06	0.212	1	1 = 1.22
9	18.72	5.59	405	93768.30	2.89	4.82	82.45	0.013	0.927	0.172	1	1 = 2.17
10	12.99	6.04	405	102237.30	2.54	4.23	84.72	0.12	1.39	0.256	1	1 = 1.31
11	79.09	26.03	435	591705.05	3.99	6.65	81.37	.008	1.08	0.210	4	1 = 3.76, 2 = 2.45, 3 = 3.29, 4 = 2.28
12	13.30	6.51	390	90704.70	2.22	3.7	80.11	.009	1.051	0.147	1	1 = 2.97
13	392.3	56.85	825	3688081	9.34	15.57	78.84	.003	0.967	0.1365	—	—