RV Investigator Voyage IN2017_T02 SBP120 Sub-bottom Profiler Data

This record describes sub bottom profiler data collected on RV Investigator voyage IN2017_T02, 'Collaborative Australian Postgraduate Sea Training Alliance Network (CAPSTAN): Training the Next Generation of Marine Scientists'. The voyage took place between November 14 and November 26, 2017 departing from Fremantle (WA) and arriving in Hobart (TAS).

The Kongsberg SBP120 (sub bottom profiler) was used to acquire data containing the specular reflections at different sediment interfaces below the seafloor. The SBP120 provides a 3° by 3° angular resolution.

The echosounder's frequency sweep range is from 2.5 to 7 kHz. The SBP120 was logged continuously for the extent of the voyage.

Data are stored in *.raw (139 files 12.2 GB) raw and *.seg (139 files 12.2 GB) segy formats at CSIRO. Dedicated shelf transects were run from 15/11/2018 until 20/11/2018.

The segy format data had a real time processing stream applied, which applies gain, a gain correction, matched filter with replica shaping, an attribute calculation for instantaneous amplitude and time variable gain.

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RV Investigator号科考船IN2017_T02航次采集的浅地层剖面仪（sub bottom profiler）数据，该航次主题为"澳大利亚研究生海洋培训联合网络（Collaborative Australian Postgraduate Sea Training Alliance Network, CAPSTAN）：培养下一代海洋科学家"。
本次航次于2017年11月14日至11月26日开展，从西澳大利亚州弗里曼特尔出发，最终抵达塔斯马尼亚州霍巴特。

本次航次采用康斯伯格（Kongsberg）公司的SBP120浅地层剖面仪采集数据，所获数据包含海底下方不同沉积物界面的镜面反射信号，该设备的角分辨率为3°×3°。

该回声测深仪的扫频范围为2.5 kHz至7 kHz，SBP120在整个航次期间均处于连续记录状态。

数据以*.raw（共139个文件，总大小12.2 GB）原始格式与*.seg（共139个文件，总大小12.2 GB）SEG-Y（segy）格式存储于澳大利亚联邦科学与工业研究组织（CSIRO）。专用陆架断面测线于2018年11月15日至11月20日完成采集。

SEG-Y格式数据已应用实时处理流程，该流程包含增益处理、增益校正、带复本整形的匹配滤波、瞬时振幅属性计算以及时变增益校正。

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。其他衍生数据产品可根据申请提供。