Experimental Study on Calculation Method of Drainage Capacity of Drainage Facilities Affected by Overtopping on Artificial Island

Table 1

Test wave elements.

Retum period water level	H 1% (m)	H 5% (m)	H s (m)	H (m)	T (s)	L (m)
E.H.W.L 3.61 m (300a)	3.50	2.99	2.59	1.75	7.1	45.1
E.H.W.L 3.34 m (100a)	3.26	2.77	2.40	1.62	6.7	39.4