Fraser River Delta Upper Slope Current Meter Deployed 2015-09-14

The Nortek Vector Current Meter 4896 was deployed on 2015-09-14 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 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 Current Meter 4896型海流计于2015年9月14日部署在弗雷泽河三角洲上斜坡（Fraser River Delta Upper Slope）。该站位位于弗雷泽河三角洲上斜坡区域，水深约100米。本设备为海流计，声学海流计（Acoustic Current Meters，ACM）借助多普勒效应（Doppler Effect）测量海流的流速与流向。Aquadopp型海流计的传感器探头内置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。该仪器通过发射短脉冲声波，随后接收回波以检测音高或频率的变化，基于音高变化即可推算海流流速。该设备搭载于固定平台之上。本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，其质量控制流程与衍生数据产品均遵循既定行业规范。