Fraser River Delta Upper Slope Current Meter Deployed 2016-05-03

The Nortek Vector Current Meter 4899 was deployed on 2016-05-03 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.

Nortek Vector 4899型海流计于2016年5月3日布放于弗雷泽河三角洲上斜坡海域。该站位位于弗雷泽河三角洲上斜坡区域，水深约100米。该设备为海流计，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型海流计的传感器探头集成了3个声学换能器、1个倾斜传感器、1个温度传感器以及1个压力传感器。该仪器发射短脉冲声波，随后接收回波以测量声频变化，通过频率偏移量即可推算海流流速。该仪器搭载于固定式平台完成布放。本次布放获取的观测数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外共享；所有数据均遵循既定规范开展质量控制，并生成了衍生数据产品。