RV Investigator Voyage IN2016_V05 EK60 Echosounder

This record describes scientific splilt-beam echosounder data collected on RV Investigator voyage IN2016_v05, "The Great Barrier Reef as a significant source of climatically relevant aerosol particles."The voyage departed Brisbane on 28th September 2016. Leg 1 ended on 11 October with a personnel transfer at Fitzroy Island. Leg 2 ended on 16 October with another personnel transfer at Magnetic Island, then the voyage ended in Brisbane on 24 October 2016.The Simrad EK60 split beam echosounders, 18, 38, 120, 200 and 333 kHz were used to acquire acoustic backscatter data to a range of 250 or 1500 m. The frequencies were logged continuously for the extent of the voyage. The 70 KHz frequency was set to passive for the whole of the voyage.Data are stored in *.raw, *.bot and *.idx format at CSIRO. There are 1455 files totalling 70.9 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）科考航次IN2016_v05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《大堡礁作为气候相关气溶胶粒子的重要来源》。该航次于2016年9月28日从布里斯班启航。第一航段于10月11日在菲茨罗伊岛完成人员交接后结束；第二航段于10月16日在磁岛完成人员交接后结束，最终航次于2016年10月24日返回布里斯班。本次航次使用Simrad EK60分裂波束回声测深仪，配备18、38、120、200及333 kHz五个工作频率，采集了量程可达250米或1500米的声学反向散射数据。所有频率的数据在整个航次期间均被连续记录；70 kHz频率模式全程设置为被动接收模式。本数据集的原始数据以*.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），共计1455个文件，总数据量达70.9 GB。该数据集尚未经过任何处理。有关本数据集的更多详细信息可参阅GSM数据采集与处理报告，额外的数据产品可根据申请获取。