RV Investigator Voyage IN2024_V01 EK60/EK80 Echosounder

This record describes bioacoustic echosounder data collected on RV Investigator voyage IN2024_V01, 'Multidisciplinary Investigations of the Southern Ocean' which departed Hobart on 05/01/2024 and returned to Fremantle on 05/03/2024.

The Simrad EK60 split beam echosounders for18kHz and Simrad EK80 split beam echosounders for 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 250-1500 m, from Hobart, along the Antarctic ice edge to Fremantle. All frequencies were logged continuously for the extent of the voyage. Some frequencyies were set to passive for periods of the voyage.

Impedance issue

Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 2,595 files totalling 249 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.

本记录描述了“探索者号（RV Investigator）”海洋调查船航次IN2024_V01——“南大洋多学科调查”所采集的生物声学回声测深数据，该航次于2024年1月5日从霍巴特起航，于2024年3月5日返回弗里曼特尔。

本航次使用适配18kHz频段的Simrad EK60分离波束回声测深仪，以及适配38、70、120、200及333kHz频段的Simrad EK80分离波束回声测深仪，沿霍巴特至南极冰缘再至弗里曼特尔的航线，采集了量程为250米至1500米的声学背散射数据。所有频段在整个航次期间均持续记录，部分频段在航次部分时段被设置为被动模式。

阻抗异常

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）。本数据集共计2595个文件，总原始数据量达249GB。

本数据集未经过任何处理。

有关本数据集的更多信息详见GSM数据采集与处理报告。额外数据产品可根据申请提供。