RV Investigator Voyage IN2020_V08 EK80 Echosounder

This record describes scientific split-beam echosounder data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2020_V08, titled "SOLACE - Southern Ocean Large Areal Carbon Export: quantifying carbon sequestration in subpolar and polar waters." The voyage took place between December 5, 2020 and January 16, 2021 departing from Hobart (TAS) and arriving in Hobart (TAS).

The Simrad EK80 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m, at the three study locations and transit to and from Hobart . All frequencies were logged continuously for the extent of the voyage. Logging of "complex samples" occurred daily for one hour.

Data are stored in *.raw (6273 files 625 GB) and *.idx (6273 files 63.0 MB) formats at CSIRO.

No processing has been conducted on this data.

Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products may be available on request.

本记录描述的是采集自澳大利亚海洋国家设施（Marine National Facility, MNF）“调查者号（RV Investigator）”IN2020_V08航次的科学分裂波束回声测深仪（split-beam echosounder）数据，航次主题为“SOLACE——南大洋大面积碳输出：量化亚极地与极地水域的碳固存能力”。该航次于2020年12月5日至2021年1月16日执行，从塔斯马尼亚州霍巴特港起航并最终返回同一港口。

本航次使用Simrad EK80分裂波束回声测深仪（覆盖18、38、70、120、200及333 kHz频段）采集声学后向散射数据，最大探测深度可达1500米，数据采集覆盖3个研究站位以及往返霍巴特的航行航线。航次全程对所有频段的采集数据进行了连续记录。每日会开展1小时的“复采样（complex samples）”日志记录工作。

本数据集以*.raw（共6273个文件，总容量625 GB）与*.idx（共6273个文件，总容量63.0 MB）两种格式存储于澳大利亚联邦科学与工业研究组织（CSIRO）。

本数据集尚未经过任何处理。

有关该数据集的更多详细信息可查阅GSM数据采集与处理报告。如需获取额外数据产品，可提交申请。