Determining event bedload volumes for evaluation of potential degradation sites due to gravel extraction, N.S.W., Australia

The technique is based on the continuity equation for bedload. It requires only pre and post flow measurements of river-bed scour and fill and tracer distances of movement. The proposed technique is relatively cheap, personel specialisation is not required, it may be applied to small and medium sized rivers and it can be used concomittantly at a number of sites. It is applicable to ephemeral and intermittent rivers as well as to perennial ones with shallow (<0.2 m) baseflow. -from Authors