Wind tunnel modeling of echo and climbing dunes.

Presents data concerning the formation of echo and climbing dunes gathered during wind tunnel tests made on several simulated cliffs with different inclinations. Three types of measurement were taken: 1) modeling of echo and climbing dunes in front of simulated cliffs; 2) tracing of eddies and wind turbulence in front of the simulated cliffs and over the echo dune models, through a bubble generator; and 3) measurements of wind velocity in front of the simulated cliffs and over the echo dune models, with a hot-wire anemometer.-from Author