Swath sonar bathymetry during POLARSTERN cruise ANT-XIX/5 (PS61) with links to multibeam raw data files

Multibeam data were measured during R/V Polarstern cruise ANT-XIX/5 along track lines of approximately 4000 NM total length in the Scotia Sea. Data were achieved along the Scotia Arc from Burdwood Bank to King George Island. A multibeam box survey was conducted at the southern part of the Discovery Rise, located at 50°55'S / 35°30'W and covering an area of 90 x 15 NM. A bathymetric survey of 25 x 60 NM was carried out at the eastern part of the South Shetland Trench and its intersection with the Shackleton Fracture Zone, continuing multibeam data from former expeditions. The multibeam sonar system Hydrosweep DS-2 was operated using 59 beams and 90° aperture angle. The refraction correction was achieved utilizing the system's own cross fan calibration. The quality of data might be reduced during bad weather periods or adverse sea ice conditions. The dataset contains raw data that are not processed and thus may contain errors and blunders in depth and position.本数据集的多波束数据采集于极星号（R/V Polarstern）ANT-XIX/5航次，作业区域为斯科舍海（Scotia Sea），总测线长度约4000海里（NM）。数据覆盖斯科舍海岭（Scotia Arc），测线从伯德伍德浅滩（Burdwood Bank）延伸至乔治王岛（King George Island）。研究团队在发现海隆（Discovery Rise）南部开展了多波束箱型测量，作业点位为南纬50°55′、西经35°30′，测量覆盖面积为90×15海里（NM）。此外，在南设得兰海沟（South Shetland Trench）东部及其与沙克尔顿断裂带（Shackleton Fracture Zone）的交汇区域开展了25×60海里的水深测量，以补充既往科考航次获取的多波束数据。本次测量采用Hydrosweep DS-2型多波束声呐系统，配备59个波束，波束开角为90°。数据处理中采用系统自带的交叉扇形校准方法完成折射校正。恶劣天气或不利海冰条件可能会降低数据质量。本数据集包含未经处理的原始数据，因此可能存在深度与位置相关的误差及粗差。