Endeavour North Current Meter Deployed 2018-06-28

The Nortek Aquadopp Current Meter A2L2492 AQD2761 was deployed on 2018-06-28 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A2L2492、AQD2761的Nortek Aquadopp海流计（Current Meter）于2018年6月28日部署于恩德华北（Endeavour North）站位。恩德华热液喷口的北部片区设有两套锚系监测站，用于区域环流观测。该设备属于海流计范畴，声学海流计（Acoustic Current Meters, ACM）依托多普勒效应测量水流流速与流向。Aquadopp海流计的传感器探头内置3个声学换能器、倾斜传感器、温度传感器与压力传感器。仪器先发射短脉冲声波，随后接收回波以检测音调（或频率）的变化，通过该变化可推算水流速度。本次部署将设备搭载于固定平台之上。此次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 3.0数字基础设施对外开放共享，其质量管控与衍生数据产品均遵循既定行业规范。