Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - Ecology / Seabed underwater video footage and still images

The Petrel Sub-basin Marine Survey GA-0335 (SOL5463) was acquired by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas.

Underwater video footage and still photographic images (12 megapixel resolution) from towed-video were acquired from 11 stations. The quality of imagery varies among transects and some still images were not of suitable quality for analysis. No still images are available for stations 2, 4 and 7 due to system malfunction. Video and still image files and associated parent folders are named by station number, gear code (CAM = underwater camera system) and then the deployment number. For example 'STN08CAM06' would represent a video transect from Station 08 that was the 6th video transect of the survey. Please note that the Ultra-short Baseline (USBL) acoustic tracking system used to track the towed-camera system failed early in the survey; hence geo-location of video transects and stills could only be linked to the R.V. Solander's ship navigation.

彼得尔次盆地海洋调查GA-0335（SOL5463）由“索兰德号”考察船（RV Solander）于2012年5月开展，是澳大利亚联邦政府国家低排放煤炭计划（National Low Emission Coal Initiative，NLECI）的一部分。该调查由澳大利亚海洋科学研究所（Australian Institute of Marine Science，AIMS）与GA合作实施，旨在获取彼得尔次盆地内两个目标区域浅海（水深小于100米）海底环境的地球物理和生物物理数据，为这些区域的二氧化碳封存潜力研究提供支持。

通过拖曳式视频设备在11个站位采集了水下视频片段和静态照片（1200万像素分辨率）。不同断面的影像质量存在差异，部分静态照片的质量不足以支撑分析。由于系统故障，站位2、4和7无静态照片可用。视频和静态照片文件及其所属父文件夹按站位编号、设备代码（CAM=水下摄像系统）和布放次数命名。例如，“STN08CAM06”代表来自站位08的视频断面，是本次调查的第6次视频断面布放。请注意，用于跟踪拖曳式摄像系统的超短基线（USBL）声学跟踪系统在调查初期发生故障，因此视频断面和静态照片的地理定位只能与“索兰德号”考察船的船舶导航数据关联。