Fig. 3 – Photographic sequence of tidal bore propagation (from right to left) with 0.12 s between successive photographs (From left to right, top to bottom) – Flow conditions: Q = 0.061 m3/s, d1 = 0.155 m at x = 5.9 m, Fr1 = 1.39, Tainter gate opening after closure: h = 25 mm, shutter speed: 1/400 s