Endeavour South Current Meter Deployed 2019-05-12

The Nortek Aquadopp Current Meter A2L2560 (AQD 2811) was deployed on 2019-05-12 at Endeavour South. This south 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.

Nortek Aquadopp海流计A2L2560（AQD 2811）于2019年5月12日部署在Endeavour南部。Endeavour热液喷口的南部区域设有两个锚系，用于监测区域环流。该设备为海流计。声学海流计（Acoustic Current Meters，ACM）利用多普勒效应测量海流的速度和方向。Aquadopp海流计的传感器头包含3个声学换能器、1个倾斜传感器、1个温度传感器和1个压力传感器。该仪器发射短声波脉冲，随后接收回波以测量音调或频率的变化，进而通过音调变化确定海流流速。该设备部署于固定平台上。此次部署的数据已归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施开放获取，其质量保证与衍生数据产品均遵循既定规范。