Barkley Canyon Hydrates Imaging Rotary Sonar Deployed 2018-08-01

The Kongsberg Mesotech Rotary Sonar 1171 (1206085) was deployed on 2018-08-01 at Barkley Canyon Hydrates. Barkley Canyon Hydrates denotes a gas hydrate field within Barkley Canyon. This device is a Imaging Rotary Sonar. Imaging Rotary Sonars (IRS) are devices used in underwater mapping: imaging and profiling. An IRS transmits either conical or fan-shaped beam, and its range and resolution depends on the frequency and configuration of the device. Reflected signals, or echoes, are recorded and analyzed in order to develop an image of scanned area that includes information on the range between the sonar and the scanned object. It was deployed on a fixed platform. Data from this deployment were archived and made available through Ocean Networks Canada's Oceans 2.0 digital infrastructure, with quality assurance and derived data products following established practices.康斯伯格梅索泰克（Kongsberg Mesotech）旋转声呐1171（编号1206085）于2018年8月1日部署于巴克利峡谷水合物区（Barkley Canyon Hydrates）。巴克利峡谷水合物区指巴克利峡谷（Barkley Canyon）内的天然气水合物气田。该设备为成像旋转声呐（Imaging Rotary Sonar，IRS），用于水下测绘领域，可实现成像与剖面测量作业。成像旋转声呐可发射锥形或扇形波束，其作用距离与分辨率取决于设备的工作频率及配置参数。设备会记录并分析反射信号（即回波），以生成包含声呐与扫描目标间距信息的扫描区域成像结果。本次部署采用固定式平台搭载该设备。本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 2.0数字基础设施对外共享，所有数据均按照既定规范开展质量管控并生成衍生数据产品。