Fraser River Delta Upper Slope Current Meter Deployed 2013-05-02

The Nortek Vector Current Meter 4895 was deployed on 2013-05-02 at Fraser River Delta Upper Slope. This site is located on the upper slope of the Fraser River delta, where depth is approximately 100 metres. 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Vector 4895型海流计（Nortek Vector Current Meter 4895）于2013年5月2日部署于弗雷泽河三角洲上斜坡站点。该站点地处弗雷泽河三角洲上斜坡区域，水深约100米。该设备属于海流计范畴，声学海流计（Acoustic Current Meters, ACM）借助多普勒效应测量水流速度与流向。Aquadopp型海流计的传感器探头集成3个声学换能器、倾斜传感器、温度传感器与压力传感器。该仪器通过发射短脉冲声波并接收回波，以测量音调或频率的变化，进而通过音调变化推算水流流速。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，相关数据严格遵循既定规范开展质量管控与衍生数据产品开发。