RV Investigator Voyage IN2020_V10 SBP120 Sub-bottom Profiler Data

This record describes multibeam echosounder data collected on RV Investigator voyage IN2020_V10, titled MNF Trials, Storm Bay Modelling and Information System Data Collection, and Bathymetric and Benthic Habitat mapping of the Huon AMP. The voyage took place from 11-22 November 2021 departing from Hobart (TAS) and returning to 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 ( 1332 files 7.99GB) raw and *.seg (XX files XX GB) 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

本数据集记录了“探索者号”（RV Investigator）IN2020_V10航次采集的多波束测深仪（multibeam echosounder）数据，该航次主题为“MNF试验、风暴湾建模与信息系统数据采集，以及休恩海洋保护区（Huon AMP）的水深与底栖生境制图”。本次航次于2021年11月11日至22日开展，从塔斯马尼亚州霍巴特港启航并最终返回霍巴特港。本次航次使用康斯伯格（Kongsberg）SBP120浅地层剖面仪（sub bottom profiler）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SBP120的角分辨率为3°×3°。本次使用的多波束测深仪的扫频范围为2.5 kHz至7 kHz。航次全程持续记录SBP120的采集数据。数据以两种格式存储于澳大利亚联邦科学与工业研究组织（CSIRO）：*.raw原始格式（共1332个文件，总大小7.99GB）以及*.seg格式的SEG-Y（segy）数据（共XX个文件，总大小XX GB）。SEG-Y格式数据经过实时处理流处理，处理流程包含增益调整、增益校正、带复本整形的匹配滤波，以及瞬时振幅与时变增益的属性计算。本数据集的补充信息详见《GSM数据采集与处理报告》。如有需求，可获取额外的数据产品。