A marine Piezometer is an instrument that measures pore fluid pressures in shallow marine sediments. Two piezometers have been installed within the VENUS and NEPTUNE observatories. A vibrating wire (VW) piezometer is deployed in the Strait of Georgia for monitoring slope-sediment dynamics. An IFREMER-developed piezometer extends four metres into the sediments at the Cascadia Basin site. Its needle-like probe is six centimetres in diameter and is equipped with four pore pressure and four temperature sensors.
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