RV Investigator Voyage IN2018_V04 EK60 Echosounder

This record describes scientific split-beam echosounder data collected on the RV Investigator voyage IN2018_V04, 'Constraining external iron inputs and cycling in the southern extension of the East Australian Current' which departed Hobart on the 11 September 2018 and returned to Hobart on the 8 October 2018.

The Simrad EK60 split beam echosounders 18, 38, 70 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 1500 m in deep water. All frequencies were logged for the extent of the voyage.
Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 897 files totalling 84.8 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.

本数据集记录了“调查者”号（RV Investigator）科考船IN2018_V04航次所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“约束东澳流南部延伸区的外源铁输入与循环”，于2018年9月11日从霍巴特启航，2018年10月8日返回霍巴特。

本航次使用Simrad EK60型分裂波束回声测深仪（18、38、70、120、200及333 kHz频段）采集深水环境下量程达1500米的声学背散射数据，全航次期间对所有频段数据均进行了记录。

本数据集的数据以*.raw、*.bot及*.idx格式存储于CSIRO，共计897个文件，原始数据总容量达84.8 GB。

本数据集的补充信息收录于GSM数据采集与处理报告中，额外的数据产品可按需申请获取。