Endeavour North Current Meter Deployed 2021-08-27

The Nortek Aquadopp Current Meter A3L4912 AQD2935 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 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A3L4912、AQD2935的Nortek Aquadopp型海流计于2021年8月27日部署于恩德华北（Endeavour North）海域。恩德华热液喷口区的北部区域配备两套锚系观测装置，用于监测区域环流状况。该设备属于海流计类仪器，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内置3个声学换能器、一个倾斜传感器、一个温度传感器及一个压力传感器。该仪器先发射短脉冲声波，随后接收回波以检测音高或频率的变化，通过该音高变化即可推算海流流速。本次部署将该设备搭载于固定平台之上。此次部署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，其质量保障流程与衍生数据产品均遵循既定操作规范。