Discriminant functions for formative conditions of bedforms in open-channel flows

This study provides boundary surfaces of bedform phases defined as discriminant functions of dimensionless parameters. The following is the method for caluculating the functions.
First of all, we defined new bedform phase diagrams using three parameters in dimensionless form. 
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Bedform adjustment experiments

Recirculating flume experiments tracking evolution of sand bedforms through repeat 2d sonar scans.  Experiments track change in bedform geometries across abrupt and gradual discharge changes.