Barkley Canyon Head Current Meter Deployed 2017-06-15

The Nortek Aquadopp Current Meter A3L5380 AQD8375 was deployed on 2017-06-15 at Barkley Canyon Head. Barkley Canyon Head is located within Barkley Canyon, where benthic processes and sediment dynamics are observed. This device is a Current Meter. Acoustic Current Meters (ACM) measure current speed and direction, using the Doppler Effect. Aquadopp current meters have a sensor head that contains 3 acoustic transducers, a tilt sensor, a temperature sensor and a pressure sensor. The instrument transmits a short pulse of sound, and then listens to its echo to measure the change in pitch or frequency. The change in pitch can determine the velocity of the current. It was deployed on a fixed platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 3.0 digital infrastructure, with quality assurance and derived data products following established practices.

诺泰克（Nortek）Aquadopp型海流计A3L5380 AQD8375于2017年6月15日部署于巴克利峡谷海岭（Barkley Canyon Head）。巴克利峡谷海岭地处巴克利峡谷（Barkley Canyon）区域内，该区域长期开展底栖过程与沉积物动力学观测。本设备为海流计，声学海流计（Acoustic Current Meters, ACM）借助多普勒效应测量海流的流速与流向。Aquadopp海流计的传感器探头内置3个声学换能器、一个倾斜传感器、一个温度传感器与一个压力传感器。该仪器通过发射短脉冲声波并接收回波，以检测声波的频率变化；通过该频率偏移即可推算出海流流速。本次部署采用固定式观测平台。本次任务获取的数据集已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外共享；所有数据均遵循既定规范完成质量管控，并衍生了配套数据产品。