Fraser River Delta Lower Slope Current Meter Deployed 2016-05-01

The Nortek Vector Current Meter 4906 was deployed on 2016-05-01 at Fraser River Delta Lower Slope. This site is located on the lower slope of the Fraser River delta, where depth is approximately 150 metres. This device is a Current Meter. Acoustic Current Meters (ACM) measure current speed and direction, using the Doppler Effect. Aquadopp current metres 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 2.0 digital infrastructure, with quality assurance and derived data products following established practices.

Nortek Vector 4906型海流计（Nortek Vector Current Meter 4906）于2016年5月1日部署于弗雷泽河三角洲下斜坡站位。该站位地处弗雷泽河三角洲下斜坡区域，水深约150米。本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海流的流速与流向。Aquadopp海流计的传感器探头集成3个声学换能器、1个倾斜传感器、1个温度传感器及1个压力传感器。该仪器通过发射短声脉冲并接收回波，测量音调或频率的变化量，以此推算海流流速。本次部署采用固定式平台实施。本批次部署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 2.0数字基础设施对外共享，所有数据均遵循既定规范开展质量控制，并生成配套衍生数据产品。