Swath sonar bathymetry during POLARSTERN cruise ANT-XV/2 (PS47) with links to multibeam raw data files

• Main Authors: Schenke, Hans Werner, Cherkis, Norman Z, Christen, Sven, Dijkstra, Semme J, Hannapel, Mark, Niederjasper, Fred
• Format: Dataset
• Language: English
• Published: PANGAEA 2009
• Subjects: ANT-XV/2; AWI_Paleo; CT; DATE/TIME; LATITUDE; LONGITUDE; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS47; PS47/2-track; Standard for Geospatial Metadata V.2; Swath-mapping system Atlas Hydrosweep DS-2; Underway cruise track measurements; Uniform resource locator/link to image; Uniform resource locator/link to metadata file; Uniform resource locator/link to raw data file; Scotia Sea; South Sandwich Trench; South Shetland Trench; Weddell; Weddell Sea; Ekstrom Ice Shelf; Ice Shelf; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.724653; https://doi.org/10.1594/PANGAEA.724653

Multibeam data were measured during R/V Polarstern cruise ANT-XV/2 along track lines of approximately 10200 NM total length during transits, surveys and partly during stationary work, mainly in the Scotia Sea and the Weddell Sea. Areal multibeam surveys were performed in the vicinity of the South Shetland trench, the Bransfield Basin, the South Sandwich trench, and off the Ekstrom Ice Shelf for time periods of three to eight days. The multibeam sonar system Hydrosweep DS-2 was operated using 59 beams and 90° aperture angle, in some shallow areas 120°. The refraction correction was achieved utilizing sound velocity profiles sampled during the cruise, and by 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.