Barkley Canyon Head Current Meter Deployed 2016-05-16

The Nortek Aquadopp Current Meter A2L5379 AQD8389 was deployed on 2016-05-16 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.

本数据集涉及的Nortek Aquadopp海流计（型号A2L5379、AQD8389）于2016年5月16日部署于巴克利峡谷海岭（Barkley Canyon Head）。巴克利峡谷海岭坐落于巴克利峡谷（Barkley Canyon）区域内，该区域针对底栖过程与沉积物动力学开展观测研究。该设备属于海流计范畴，声学海流计（Acoustic Current Meters，ACM）依托多普勒效应测量水流速度与流向。Aquadopp系列海流计的传感器头部集成3个声学换能器、倾斜传感器、温度传感器及压力传感器。仪器通过发射短脉冲声波并接收回波，检测音调（或频率）的变化，进而推算水流流速。本次部署采用固定式平台搭载该仪器。本次部署所采集的数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外开放共享；相关数据已遵循既定规范完成质量管控，并生成配套衍生数据产品。