Concept
Duncan and Associates Shipek grab
| URI | http://vocab.nerc.ac.uk/collection/L22/current/TOOL1487/1/ | ||
|---|---|---|---|
| Within Vocab | SeaVoX Device Catalogue | ||
| Alternative Labels | Duncan Ass. Shipek | ||
| Definition | A center-pivot sampler designed to sample unconsolidated sediments from soft ooze to hard-packed silts from deep lakes and near offshore. The sampler scoops a sediment sample from the top 10cm of the seabed. It brings up virtually un- disturbed, unwashed samples to the surface from any depth. Its specialty is sampling benthic organisms living at or immediately below the water/bottom interface and sediment containing a significant population of non-sessile forms. When the grab touches the bottom, inertia from a self-contained weight releases a catch and helical springs rotate the inner half cylinder by 180 degrees. After turning, the scoop remains closed by the residual torque of the scoop spring. Because the rotation of the bucket is very rapid, its shear strength is far greater than the sediment strength, thus cutting cleanly, particularly in soft clays, muds, silts and sands. Manufactured in 316 stainless steel with a sampling area of 0.042m sq. There is the option of adding a landing table. | ||
| Date | 2020-06-30T08:47:51 | ||
| Identifier | SDN:L22::TOOL1487 | ||
| Note | accepted | ||
| Is Version Of | TOOL1487 | ||
| version | 1 | ||
| Broader | L05:50 |
sediment grabs | |
L19:SDNKG17 |
sensor_model | ||
| Related | B75:ORG01106 |
Duncan and Associates | |
L35:MAN0091 |
Duncan and Associates | ||
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