RV Investigator Voyage IN2022_V03 EK60/EK80 Echosounder

This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2022_V03, "SOTS: Southern Ocean Time Series automated moorings for climate and carbon cycle studies southwest of Tasmania", which departed Hobart on the 4th May 2022 and returned to Hobart on the 15th May 2022 (AEST).

The Simrad EK60 split beam GPT for 18kHz and Simrad EK80 split beam WBTs for 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m during transits. All frequencies were logged continuously for the extent of the voyage, except for periods of mooring recovery/deployment when all acoustic systems were mandated to be suspended to communicate with the mooring beacons.

Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 436 files totalling 41.5 GB of raw data in this dataset.

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

本记录所描述的，为“探索者号”科考船（RV Investigator）IN2022_V03航次采集的科学级分裂波束回声测深仪（split-beam echosounder）数据。该航次主题为"SOTS：塔斯马尼亚西南海域用于气候与碳循环研究的南大洋时间序列自动锚泊系统"，航次于2022年5月4日从霍巴特起航，2022年5月15日（澳大利亚东部标准时间，Australian Eastern Standard Time, AEST）返回霍巴特。本航次使用适配18kHz频段的Simrad EK60分裂波束GPT换能器，以及适配38、70、120、200与333kHz频段的Simrad EK80分裂波束WBT换能器，在航行过境阶段采集了量程达1500米的声学背散射数据。全航次期间，所有频段的数据均保持连续记录，仅在锚泊系统回收与布放阶段除外——此时所有声学系统需暂停运行，以保障与锚泊信标的通信。本数据集的数据以*.raw、*.bot及*.idx格式存储于澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation, CSIRO），共计包含436个文件，原始数据总容量达41.5 GB。有关本数据集的更多详细信息可查阅GSM数据采集与处理报告，额外的数据产品可按需申请获取。