Abstract
Ttransmission coefficients at the entrance of an estuary were calculated for lateral incidence of periodic waves along a coast. At particular values of kd=(n+1)π or (n+1/2)π(k, wave number; d, half width of a channel and n, non-negative integers), there exists a relation ζ(m)c=δm, n+1 or ζ(m)B=-i. δm, n, where m=0, 1, 2, etc., ζ(m)c (ζ(m)s) denotes symmetric (anti-symmetric) mode in channel and δm, n is Kronecker delta. Using the calculated transmission coefficients, the transmitted energy into a channel is estimated. Am-Plitude and phase distribution in the vicinity of an estuary entrance were calculated. These results show the concentration of energy along the leeward bank of a channel. Using an approximate method, we obtained a simple and convenient relation between the transmission coefficient for lateral incidence and that for incidence with arbitrary angle.
