Barkley Canyon Axis Acoustic Doppler Current Profiler 55 kHz Deployed 2018-06-22

The Nortek Signature55 Current Profiler 200066 was deployed on 2018-06-22 at Barkley Canyon Axis. Barkley Canyon Axis is located within Barkley Canyon, where benthic processes, biodiversity, sediment dynamics are observed. This device is a Acoustic Doppler Current Profiler 55 kHz. Acoustic Doppler Current Profilers are hydroacoustic instruments, similar to sonars. ADCPs measure current speed and direction at multiple predetermined depths simultaneously. ADCPs use the Doppler effect of sound waves that are scattered by particles in seawater over a depth range. 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 Signature55型声学多普勒海流剖面仪（Acoustic Doppler Current Profiler，ADCP）序列号200066，于2018年6月22日部署于巴克利峡谷轴区（Barkley Canyon Axis）。巴克利峡谷轴区坐落于巴克利峡谷海域，该区域为底栖过程、生物多样性及沉积物动力学的观测研究区域。本设备为55kHz声学多普勒海流剖面仪，声学多普勒海流剖面仪是一类类似声呐的水声探测仪器，可同时在多个预设深度处同步测量海流的流速与流向。其工作原理为利用声波的多普勒效应，通过海水中颗粒物对声波的散射，获取特定深度范围内的海流数据。本次部署采用固定式平台搭载。本批次部署所获取的相关数据已完成归档，并通过加拿大海洋网络（Ocean Networks Canada）的Oceans 3.0数字基础设施对外公开提供，所有数据均遵循既定规范完成质量管控，并生成了符合标准的衍生数据产品。