RV Investigator Voyage IN2015_E05 EM122 Multibeam Echosounder Data

This record describes multibeam echosounder data collected on RV Investigator voyage IN2015_E05, which departed Hobart 2015-05-01 and returned on 2015-05-05. The Kongsberg EM122 multibeam echosounder was used to acquire seafloor bathymetry and backscatter information along the east coast slope offshore from Freycinet Peninsula. Ping rate varied according to depth. Data are stored in *.all raw format at CSIRO Oceans and Atmosphere. There are 62 files totaling 1.6 GB of raw data in this dataset. Sound velocity profiles using sea surface temperature were applied to this data during data acquisition. Tide corrections were not applied to the processed data. Due to the shallow nature of the inshore site and the duration of this survey over several tides, tide corrections will need to be applied from AusTides or from the data from the Triabunna tidal station.Processed data are available in XYZ and GSF format. Additional information regarding this dataset is contained in the GSM data acquisition and processing report. Additional data products available on request.

本记录描述了“调查者号”研究船（RV Investigator）航次IN2015_E05所采集的多波束测深仪（multibeam echosounder）数据，该航次于2015年5月1日从霍巴特起航，同年5月5日返航。本次调查采用康斯伯格（Kongsberg）EM122多波束测深仪，在弗雷西内半岛（Freycinet Peninsula）近海东侧大陆坡海域获取海底水深测量（seafloor bathymetry）与后向散射信息（backscatter information）。脉冲发射速率随水深动态调整。数据以.all原始格式存储于CSIRO海洋与大气研究中心。本数据集共计62个原始数据文件，总容量达1.6吉字节（GB）。本次数据在采集阶段已应用基于海表温度计算得到的声速剖面（sound velocity profiles）。已处理数据未施加潮汐校正（tide corrections）。由于近岸测区水深较浅且本次调查持续时长覆盖多个潮汐周期，需通过AusTides平台或特里布纳（Triabunna）潮位站数据完成潮汐校正。已处理数据可提供XYZ与GSF格式文件。本数据集的补充信息详见GSM数据采集与处理报告，额外数据产品可按需申请提供。