Assessment of Rainfall Intensity Equations Enlisted in the Egyptian Code for Designing Potable Water and Sewage Networks

Table 3

Comparison of ratios between SCS type II and TRMM.

Station name	TRMM ratios			SCS ratios			Percentage difference%
	Max. 3 hr	Max. 6 hr	Max. 12 hr	Max. 3 hr	Max. 6 hr	Max. 12 hr	Max. 3 hr	Max. 6 hr	Max. 12 hr
Alexandria	0.61	0.76	0.94	0.60	0.71	0.84	1.67	7.04	11.90
Marsa Matrouh	0.74	0.89	0.97				23.33	25.35	15.48
Salloum	0.56	0.71	0.92					0.00	9.52
Port Said	0.63	0.77	0.91				5.00	8.45	8.33
Cairo	0.75	0.79	0.91				25.00	11.27	8.33
Suez	0.70	0.80	0.90				16.67	12.68	7.14
Ismailia	0.71	0.83	0.94				18.33	16.90	11.90
Hurghada	0.73	0.85	0.91				21.67	19.72	8.33
Ras Binas	0.91	0.94	0.95				51.67	32.39	13.10
Kusseir	0.51	0.70	0.90						7.14
Siwa	0.64	0.77	0.90				6.67	8.45	7.14
Farafra	0.85	0.93	0.93				41.67	30.99	10.71
Dakhla	0.69	0.73	0.91				15.00	2.82	8.33
Beni Suef	0.76	0.85	0.91				26.67	19.72	8.33
Minia	0.65	0.78	0.85				8.33	9.86	1.19
Assiut	0.57	0.75	0.92					5.63	9.52
Sohag	0.65	0.75	0.90				8.33	5.63	7.14
Luxor	0.56	0.70	0.84						0.00
Aswan	0.72	0.85	0.97				20.00	19.72	15.48