GNGTS 2022 - Atti del 40° Convegno Nazionale

388 GNGTS 2022 Sessione 3.1 Macquarie Triple Junction – MTJ - in the SW Pacific Ocean), (Choi et al., 2017, Lodolo et al., 2013) was chosen to test the acquisition potential during transit time in remote areas, for the 3-years project period. An expected output of the ISOBATA project is the compilation of a structured “Antarctic Data Storage Repository” that can be shared at international level, as the project aims at fulfilling SCAR, CONMAP, IHO and Seabed 2030 guidelines. Accordingly, we planned to develop best practices and dedicated workflows to implement QC in multi-beam data acquisition procedures during transit times, as well as in the processing, analysis and archiving of data and metadata. The first oceanographic expedition (XXXVII PNRAAntarctic Expedition) took place last winter and made us aware of a variety of critical issues associated with collection of underway data in remote waters. The investigation went beyond the limits of the predefined plan, engaging in interesting interactions and collaborations with other oceanographic and geophysical projects (Fig.1, Fig.2). We are planning for the future to develop an underway data acquisition strategy that can investigate air-water-seafloor interactions. Our work would like to open a discussion to address the need for standardization in data acquisition during transit times. Our experience has particularly highlighted that this should include provisions in accordance with the geomorphological/geographical nature of the working areas, as well as receiving important support from the maritime industry and perhaps additional stakeholders. Fig. 2 - Opportunistic multibeam data acquired in Mooring G area. Bathymetry shows linear and curvilinear iceberg trajectory scours. Elliptical scours are due to interaction with tidal current (Newton et al., 2016).