Concept
Partrac Voyager II Benthic Annular Flume
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1289/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Partrac Voyager II flume | ||
| Definition | A benthic flume designed for in-situ studies of sediment mobilisation and transport, based on the designs and dimensions of Amos et al. (1992b). It primarily measures transport parameters such as the critical erosion threshold. It consists of an aluminium channel 0.3 m high and 0.15 m wide, with a total diameter of 2.2 m. Eight equidistantly spaced paddles induce a current via drive train, driven by a 0.6 hp, 24 V DC submarine motor and gearbox. This casues water to be re-circulated over, and oscillatory stress to be imposed upon, exposed bottom sediments. On-board optical backscatter sensors (Seapoint OBS) measure turbidity to determine suspended particulate matter concentrations at 3 different heights. An on-board Nortek Vectrino Velocimeter measures velocity in the along-channel (u), across-channel (v) and vertical (w) directions 0.15 m above the nominal bed level. An on-board 12 × 50 ml syringe sampling system collects water samples of the flume waters and a submarine video records vertical photographic profiles of the erosion processes in the upper 0.05 m. Sediment cores can also be collected concurrent with deployment. The Voyager II is depth-rated to 200 m and can impose maximum shear stresses up to ~3 Pa on bottom sediments. | ||
| Date | 2018-10-15T15:10:34 | ||
| Identifier | SDN:L22::TOOL1289 | ||
| Note | accepted | ||
| Is Version Of | TOOL1289 | ||
| version | 1 | ||
| Broader | L19:SDNKG17 |
sensor_model | |
| L05 SeaDataNet device categories - (5) | |||
| Related | B75:ORG00093 |
Partrac Limited | |
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