RV Investigator Voyage IN2020_V06 EK80 Echosounder

This record describes scientific high-precision wide-band echosounder data collected on the RV Investigator voyage IN2020_V06, titled "Probing the Australian-Pacific Plate Boundary: Macquarie Ridge in 3-D." The voyage took place between October 8 and November 3, 2020 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 1,500 m, around Macquarie Island and from Hobart transit. All frequencies were logged for the extent of the voyage, except where required to turn off for operational requirements. The frequencies were set to active for the whole period of the voyage.Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 818 files totalling 78.1 GB of raw data in this dataset.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.

本数据集记录了"调查者号"科考船（RV Investigator）在航次IN2020_V06（标题为"探索澳-太平洋板块边界：三维麦夸里海岭"，Probing the Australian-Pacific Plate Boundary: Macquarie Ridge in 3-D）中采集的科学级高精度宽带回声测深数据。该航次于2020年10月8日至11月3日开展，从塔斯马尼亚州霍巴特港启航并最终返回霍巴特港。本次观测使用Simrad EK80分裂波束回声测深仪（split beam echosounders）的18、38、70、120、200及333 kHz频段，采集了麦夸里岛周边以及霍巴特往返航线上的声学背散射数据（acoustic backscatter data），探测范围达1500米。所有频段在整个航次期间均持续记录，仅因作业需求需临时关闭的情况除外；本航次全程所有频段均设为激活状态。数据以*.raw、*.bot及*.idx格式存储于澳大利亚联邦科学与工业研究组织（CSIRO）。本数据集共包含818个文件，总原始数据量达78.1 GB。本数据集未经过任何处理。有关本数据集的更多详细信息收录于GSM数据采集与处理报告中，额外数据产品可按需申请获取。