Underwater video footage from the Vlaming Sub-basin (GA334)

The Vlaming Basin survey (GA survey # 334) was conducted under the Nation CO2 Infrastructure Plan (NCIP) on the MV Southern Supporter between the 12th to the 21st April 2012, with technical support provided from Fugro. The survey obtained geological (sedimentological, geochemical, geophysical) and biological data to support assessments of offshore acerage release areas for potential CO2 storage, and investigate the relationships between the physical environment and associated biota for biodiversity prediction. The purpose of the survey was to contribute to the assessment of the Vlaming Sub-basin for containment risk, as well as complement and validate interpretation of seismic data in the same area. Underwater footage was collected from 12 stations, although quality varies between sites and among transect lines. Video folders are named according to station number, followed by gear code (CAM=Ray Tech Underwater system), then the deployment number, and followed by region. For example, 12CAM02_D1 represents a video transect from station 12 that was the 2nd video transect of the survey and located in area region D1. Multiple files within transect folders indicate location metadata (Start of line location). In addition, USBL (Ultra-short baseline) text files located in the same folder provide continuous navigational information on location, time (UTC) and depth of each video transect line.Vlaming海盆勘测（GA勘测编号#334）依据国家二氧化碳基础设施计划（NCIP），于2012年4月12日至21日期间在MV Southern Supporter号作业船上开展，由Fugro提供技术支持。本次勘测采集了地质（沉积学、地球化学、地球物理）与生物学数据，用于支撑潜在二氧化碳封存海域租赁出让区块的评估工作，并探究物理环境与相关生物群落之间的关联，以辅助生物多样性预测。本次勘测旨在为Vlaming次盆的二氧化碳封存密封性风险评估提供支撑，同时补充并验证同一区域的地震数据解译成果。本次勘测共在12个测站采集水下影像，但各测站及测线间的影像质量存在差异。视频文件夹以测站编号命名，其后依次为设备代码（CAM=Ray Tech水下成像系统）、布设序号以及区域信息。例如，"12CAM02_D1"代表来自测站12的视频测段：该测段为本次勘测的第2条视频测线，位于D1区域。测段文件夹内的多个文件包含位置元数据（测线起始位置信息）。此外，位于同一文件夹内的超短基线（Ultra-short baseline, USBL）文本文件，可提供每条视频测段的位置、协调世界时（UTC）时间以及水深的连续导航信息。