6.3 Bottom and a Non-Uniform Current Influence on Waves
283
a)
-{
____ -:.,....
h - - - - : - - - · - 0.8
·-·t.O
2
4y
1.8
1.6
1.4
't
1.2
I
1.0
•I ,,
0.8
'I
~I
0.8
,,
•I
"
0.4
\\ h
0.2
o,
Fig. 6.14. Variations in mean wave element in increasing ('y > 1) and decreasing
('y < 1) countercurrent (a) and in shallow water countercurrent (b)