Flow was turned off during the photography. Camera parameters were acquired by self-calibration from about 30 targets within the flume surveyed by 3D intersection methods to precision of less than 1mm. Details of the photogrammetric processing are in Stojic et al. Seven DEMs were mosaiced to create a complete DEM of the model for each time period. DEM elevations were adjusted to a sloping datum equal to the flume slope.
Elevation is depicted as grey scale values with darker values representing lower elevation.
Elevation range is of the order of 50mm. Pixel size in the animation is about 40x40mm. The animation represents about 290 minutes of model time beginning with the onset of braiding 200 minutes into the experiment. The animation includes examples of migration of bars, lateral channel migration, development of confluence scour, channel cutoff and avulsion. Flow direction is from left to right.