Acoustic backscatter gridded data for the Lido inlet, Venice Lagoon, (2016 survey)

This high-resolution (0.5m resolution) gridded backscatter data set was collected during April and May 2016 in the Lido inlet (Venice Lagoon) using a Kongsberg Simrad EM 3002 Compact single-head MBES system and a Kongsberg EM 2040 Compact dual-head MBES system. The operational frequency for this survey was set at 360 kHz for the EM 3002 system and at 320 kHz for the Kongsberg EM 2040 system. A Seapath 330 positioning system with a Fugro HP DGNSS corrections was used for ship positioning with the Kongsberg EM 3002 system and a Seapath 300 system supplied by a Fugro HP DGPS was used for ship positioning with the Kongsberg EM 2040 system. The data was collected aboard small boat MBF1213 of the Hydrographic Office of Italian Navy and aboard small boat Litus, operated by CNR-ISMAR. The backscatter data was processed with the Fledermaus Geocoder Toolbox (FMGT) software. The data file is in the ESRI ASCII grid format, WGS-84, UTM zone 33N. Funding for this study came from the Italian Ministry of University and Research RITMARE Flagship Project.

本高分辨率网格化后向散射数据集（分辨率0.5米）于2016年4月至5月在威尼斯潟湖利多水道采集完成，所用设备为康斯博格（Kongsberg）Simrad EM 3002紧凑型单头多波束测深系统（Multibeam Bathymetric Echo Sounder，MBES）与康斯博格EM 2040紧凑型双头多波束测深系统（MBES）。本次测量中，EM 3002系统的工作频率设定为360 kHz，EM 2040系统的工作频率设定为320 kHz。搭配康斯博格EM 3002系统的船载定位采用搭载富格罗（Fugro）HP差分全球导航卫星系统（Differential Global Navigation Satellite System，DGNSS）校正服务的Seapath 330定位系统；搭配康斯博格EM 2040系统的船载定位则采用由富格罗（Fugro）HP差分全球定位系统（Differential Global Positioning System，DGPS）提供服务的Seapath 300定位系统。数据采集分别依托意大利海军水文局的小型船舶MBF1213，以及由意大利国家研究委员会海洋科学研究所（CNR-ISMAR）运营的小型船舶Litus完成。后向散射数据采用Fledermaus地理编码工具箱（FMGT）软件进行处理。数据文件采用ESRI ASCII栅格格式，坐标系为世界大地测量系统1984（WGS-84）、通用横轴墨卡托投影33N带（UTM zone 33N）。本数据集的采集工作由意大利大学与研究部RITMARE旗舰项目资助。