Endeavour South Current Meter Deployed 2019-09-20

The Nortek Aquadopp Current Meter A2L2499 was deployed on 2019-09-20 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 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.

诺泰克（Nortek）Aquadopp海流计（Current Meter）A2L2499于2019年9月20日部署在恩德华文特南部海域（Endeavour South）。恩德华文特热液喷口的南部区域设有两套锚系装置，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 Meter, ACM）依托多普勒效应（Doppler Effect）测量水流速度与流向。Aquadopp系列海流计的传感器探头集成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。该仪器先发射短脉冲声波，随后监听回波以检测音调（频率）的变化，通过该频率变化即可推算洋流流速。本次部署将设备固定于固定式平台之上。本批次部署产生的数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外共享，其质量保证流程与衍生数据产品均遵循行业既定规范。