DULAB

DULAB (Differential Uplift LAndscape evolution Box) is a tailored made experimental apparatus for studying the evolution of fluvial topography at the scale of a whole mountain range. DULAB is made of a 50 x 90 cm2 Plexiglas frame that encloses six prisms, attached to six electrical carjacks. The prisms are overlaid with a sheet of natural rubber. Each jack and prism can move up and down independently. Tiny water droplets rain down from a mist system mounted on top of the box, and erosion occurs by overland flow. Digital elevation models of the evolving topography are generated using a Structure from Motion algorithm. 

We use DULAB to study how the geometry and topology of drainage basins change and how water divides migrate when the uplift rate changes through space and time.