Bedforms produced by three experiments
By Pacific Coastal and Marine Science Center
January 2005 (approx.)

Detailed Description
Bedforms produced by three experiments in a flume.
A, Linear ripples, see animation
B, 3-D bedforms, see animation
C, Irregular ripples, see animation
Sources/Usage
Public Domain.
Making Waves and Ripples in a Giant Flume in Japan
USGS Sound Waves Newsletter, April 2005