Boundary Pass Current Meter Deployed 2012-10-14

The Nortek Aquadopp Current Meter A2L5379 AQD8389 was deployed on 2012-10-14 at Boundary Pass. Boundary Pass is a strait located along the boundary between Washington State and British Columbia. It connects Haro Strait with the Strait of Georgia. 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.型号为A2L5379、AQD8389的Nortek Aquadopp海流计（Current Meter）于2012年10月14日部署于边界海峡（Boundary Pass）。该海峡地处华盛顿州与不列颠哥伦比亚省的交界地带，连接哈罗海峡（Haro Strait）与乔治亚海峡（Strait of Georgia）。本设备为海流计，声学海流计（Acoustic Current Meters, ACM）依托多普勒效应（Doppler Effect）测量海流的流速与流向。Aquadopp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并接收回波，测量音高或频率的变化，进而通过音高变化推算海流流速。本次部署采用固定式平台搭载该设备。本次采集的相关数据已完成归档，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，其数据质量管控与衍生数据产品均遵循既定行业规范。