RV Investigator Voyage IN2018_E01 EM710 MKII Multibeam Echosounder Data

This record describes multibeam echosounder data collected on RV Investigator voyage IN2018_E01, Triaxus Sea Acceptance Testing & Calibrations Voyage, which departed Hobart on the 9th June 2018 and returned to Hobart on the 11th June 2018.

The Kongsberg EM710 MKII multibeam echosounder was used to acquire seafloor bathymetry and backscatter information for a small area off the southeast coast of Tasmania.

The EM710 MKII provides a 0.5° by 1° transmit and receive angular resolution respectively. The echosounder's nominal frequency range is from 40 to 100 kHz.

Data are stored in *.all raw format for bathymetry and backscatter at CSIRO. There are 7 files totalling 2.19 GB of raw data in this dataset.

Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position.

Tide corrections were not applied to the processed data. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format.

Additional information regarding this dataset, including further information on processing streams, 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）科考航次IN2018_E01（特里亚克斯海试验验收与校准航次）的多波束测深仪（multibeam echosounder）采集数据，该航次于2018年6月9日从霍巴特起航，同年6月11日返回霍巴特。

本次航次采用康士伯（Kongsberg）EM710 MKII多波束测深仪，采集了塔斯马尼亚州东南沿海小片海域的海底水深与反向散射强度数据。

该EM710 MKII的发射与接收角分辨率分别为0.5°×1°，标称工作频率范围为40 kHz至100 kHz。

本数据集的水深与反向散射强度原始数据以*.all格式存储于澳大利亚联邦科学与工业研究组织（CSIRO），共包含7个数据文件，总容量达2.19 GB。

数据采集阶段已应用声速剖面（sound velocity profiles）进行校正。*.all格式存储的水深数据已完成运动补偿与位置校正。

处理后的数据未进行潮汐校正，但已剔除异常值。处理后的测线数据以*.gsf与ASCII格式提供，处理后的水深与反向散射强度网格数据则采用GeoTIFF格式存储。

有关本数据集的更多信息（包括处理流程的详细说明）均收录于GSM数据采集与处理报告中。此外，其他数据产品可根据申请获取。