Swath sonar bathymetry during POLARSTERN cruise ANT-XIX/1 (PS61) with links to multibeam raw data files

Multibeam data were measured during R/V Polarstern cruise ANT-XIX/1 on track lines of about 5,200 NM total length in the Atlantic Ocean during the transit from Bremerhaven to Cape Town. 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. The dataset contains raw data that are not processed and thus may contain errors and blunders in depth and position.

Swath sonar bathymetry during POLARSTERN cruise ANT-XXIV/4 (PS71) with links to multibeam raw data files

Multibeam data were collected during R/V Polarstern cruise ANT-XXIV/4. Data recording was executed in northern Atlantic from the Canary Islands to Bay of Biscay for calibration of sonar system Hydrosweep DS2. Data should therefore not be used for high quality grid calculations and charting projects.