RV Investigator Voyage IN2024_V01 SBP120 Sub-bottom Profiler Data

This record describes sub bottom profiler 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 Kongsberg SBP120 (sub bottom profiler) was used to acquire data containing the specular reflections at different sediment interfaces below the seafloor from Hobart, along the Antarctic ice edge to Fremantle.

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 and *.seg formats at CSIRO. There are 775 files totalling 29.8 GB of raw data in this dataset.

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

本记录记载了RV Investigator号科考船IN2024_V01航次（航次主题为“南大洋多学科调查”）所采集的海底剖面仪数据。该航次于2024年1月5日从霍巴特启航，于2024年3月5日返回弗里曼特尔。

本次航次采用Kongsberg SBP120（海底剖面仪）采集数据，获取了沿霍巴特至弗里曼特尔航线、途经南极冰缘区域时，海底下方不同沉积界面的镜面反射信号。

该SBP120的角分辨率为3°×3°。

本次搭载的回声测深仪扫频范围为2.5 kHz至7 kHz。本航次全程对SBP120进行了连续记录。

本数据集的原始数据存储于澳大利亚联邦科学与工业研究组织（CSIRO），格式为*.raw与*.seg，共计775个文件，总容量达29.8 GB。

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

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。此外，可按需申请获取额外的数据产品。