CGRG Bibliography of Canadian Geomorphology
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Author : Hargrave, B.; Siddall, G.; Steeves, G.; and Awalt, G.
Date : 1994
Title : A current-activated sediment trap.
Publication : Limnol. Oceanogr
Issue : 39(2):
Page(s) : 283-290
Abstract
A current-activated sediment trap is described that collects particles based on preselected current speed and direction criteria. The collector incorporates a steep-walled funnel, a motor-driven carousel with sample cups, an absolute optical shaft encoder, and an acoustic current meter. A field trial of the trap was carried out in a shallow marine embayment over 3 d where it correctly positioned cups in response to tidal changes in currents speed and direction. Particle organic content and sedimentation rates calculated over hourly intervals were similar to measurements with a standard sequential sampling trap over several hours when the two traps were deployed simultaneously.
Bibliography of Canadian Geomorphology