Subsiding floor is made from a honeycomb of hexagonal funnels, three of which can be seen on board to right. PAGE Oblique diagrammatic view of prototype basin.
Sediment feed is from disk to the right, and water-level controller is disk seen to the left.
Yellow represents emerged part of basin fill and blue is water. Two map views of prototype basin. Their position is measured as distance, in mm, to the right of the center line as seen facing downstream. On right is same view, but shows approximate area where relative base level is always rising due to high subsidence rates, even during the slow absolute base-level fall.