Fig. 4: Time-lapse evolution of sections of the submarine channel profile.
From: Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution
a-c Detailed time-lapse changes in profiles across knickpoint-zones 1, 2 and 3, whose locations are indicated in Fig. 3a. 20x vertical exaggeration. Slope was generated using the survey from October 2016.Arrows indicate the position of the frontal frontal-knickpoint in each survey. d Profile along the shallow-water pro-delta channel, as indicated in Fig. 2a, where crescentic shape bedforms dominate and no knickpoints are present. 5x vertical exaggeration. Note the relatively small amount of bathymetric change, when compared to the three knickpoint zones.
