Swath sonar bathymetry during POLARSTERN cruise ARK-XXII/1a (PS70) with links to multibeam raw data files

Multibeam data were measured as part of the project HERMES during R/V Polarstern cruise ARK-XXII/1 (2007-05-29 to 2007-07-25) along transits and survey profiles and partly during stationary work. Data were achieved mainly in the coastal areas of northern Norway, at the Hakon Mosby Mud Volcano at the continental margin approx. 200 nm off the norwegian coast and the AWI-Hausgarten area approx. 150 nm west of Svalbard. A number of surveys were carried out in the coastal areas of northern Norway (Sula Reef, Roest Reef, Traena area, Floholmen area, Sotbakken area) and around the area of the Hakon Mosby Mud Volcano. The multibeam sonar system Atlas Hydrosweep DS-2 (Atlas Hydrographic, http://www.atlashydro.com) was operated using 59 beams and 90° aperture angle. The refraction correction was achieved using CTD profiles measured during this cruise or, during transits, utilizing the system's own cross fan calibration. The quality of data might be reduced during bad weather periods or adverse sea ice conditions (only in the AWI-Hausgarten area). This dataset contains raw data that are not processed and thus may contain errors and blunders in depth and position.本数据集的多波束测深数据为HERMES项目的组成部分，采集自极星号（R/V Polarstern）ARK-XXII/1航次（2007年5月29日至2007年7月25日）期间，沿航行航线与测量剖面获取，部分数据采集于定点作业时段。数据采集区域主要包括挪威北部沿岸海域、距挪威海岸约200海里的大陆边缘哈康莫斯比泥火山（Hakon Mosby Mud Volcano）海域，以及斯瓦尔巴群岛以西约150海里的AWI-Hausgarten海域。本次作业在挪威北部沿岸海域（苏拉礁、勒斯特礁、特雷纳海域、弗霍尔门海域、索特巴肯海域）以及哈康莫斯比泥火山周边海域均开展了多轮测量工作。 本次测量采用阿特拉斯Hydrosweep DS-2多波束声呐系统（Atlas Hydrographic，http://www.atlashydro.com），配置59个波束，波束开角为90°。折射校正采用本航次实测的温盐深（CTD）剖面数据完成；航行时段则通过系统自带的交叉扇区校准进行校正。恶劣天气或不利海冰条件（仅在AWI-Hausgarten海域出现此类情况）可能导致数据质量下降。本数据集为未经过预处理的原始数据，因此可能存在深度与位置相关的误差与粗差。