A new plate sediment trap: design and first experiences

Measurements of sedimentation in rivers and their marginal zones as well as in the moving water of estuaries and shallow lakes are rare and ineonsistent (KozERSKI 1994) beeause no suitable deviees are available. The goal of this paper is (i) to present a new boundary-layer sediment trap based on a eireular flat plate, (ii) to demonstrate the neeessity of sueh design, (iii) to demonstrate the reliability of the results obtained (measured trapping rates), and (iv) to show some first field results from the River Spree.