Endeavour North Current Meter Deployed 2021-08-27

The Nortek Aquadopp Current Meter A2L2554 AQD2797 was deployed on 2021-08-27 at Endeavour North. This north section of the Endeavour Hydrothermal Vents includes two moorings to monitor the regional circulation. 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 3.0 digital infrastructure, with quality assurance and derived data products following established practices.型号为A2L2554、AQD2797的Nortek Aquadopp海流计于2021年8月27日部署于恩达旺北（Endeavour North）海域。恩达旺热液喷口区（Endeavour Hydrothermal Vents）的北部区域设有两套锚系设备，用于监测区域环流。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（Doppler Effect）测量海流的流速与流向。Aquadopp海流计的传感器探头集成了3个声学换能器、一个倾斜传感器、一个温度传感器以及一个压力传感器。该仪器会发射一段短脉冲声波，随后接收回波以测量音调或频率的变化，通过该声频变化量即可推算出海流的流速。本次部署搭载于固定平台之上。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，其质量保障与衍生数据产品均遵循既定行业规范。