RV Investigator Voyage IN2019_E01 SBP120 Sub-bottom Profiler Data

This record describes sub bottom profiler data collected on RV Investigator voyage IN2019_E01, 'Post-Dry Dock Calibration Trials' which departed Singapore on the 19th July 2019 and returned to Cairns on the 2nd August 2019.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/sporadically] for the extent of the voyage.787 files 15.8 GB) raw and *.seg (763 files 15.6GB) segy formats at CSIRO.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

本记录描述了“探索者号”（RV Investigator）科考航次IN2019_E01的浅地层剖面仪（sub bottom profiler）数据，该航次名为“船坞后校准试验”（Post-Dry Dock Calibration Trials），于2019年7月19日从新加坡启航，2019年8月2日返回凯恩斯。本航次使用康斯伯格SBP120（Kongsberg 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界面的镜面反射信号，该设备的角分辨率为3°×3°。该设备的扫频范围为2.5 kHz至7 kHz。本航次全程对SBP120进行了[连续/间断]记录。原始数据包含787个文件（总大小15.8 GB），采用原生格式存储；另有763个文件（总大小15.6 GB）采用*.seg（SEG-Y）格式存储，相关数据均存放于联邦科学与工业研究组织（CSIRO）。SEG-Y格式数据经过实时处理流处理，该处理流程包含增益调整、增益校正、带副本整形的匹配滤波、瞬时振幅属性计算以及时变增益处理。本数据集的更多详细信息可查阅GSM数据采集与处理报告，额外的数据产品可根据申请提供。