Dataset: ANT-XXIII/9 - SURF data | HOME Imprint |
Archive | DOI |
Dataset citation | HTML, BibTeX, RIS |
Metadata of dataset | ISO 19115/19139, FGDC, PANGAEA |
Cruise | ANT-XXIII/9 |
Navigation system | Polarstern - MINS - PODAS |
Horizontal reference system (EPSG) | WGS84 geographic (4326) |
Sonar system | Hydrosweep DS2 |
Sonar type | multibeam |
Depth definition | true depths |
Depth datum (EPSG) | MeanSeaLevel depth (5715) |
File format | SAM Electronics SURF format |
File listing | 192 files, as XML file |
Tracklength [km] | 20115 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 104794 |
Usage | Primary data are generally not depth-edited and should not directly be used for final product compilations. |
Maintenance | Update frequency of dataset: notPlanned |
Constraints | Access: onDemand Use: copyright |
Status | completed |
Purpose | Multibeam data were collected to extend the global database of seafloor topography and to provide high resolution bathymetry for the expedition's scientific program. |
Abstract | Multibeam data were measured during R/V Polarstern cruise ANT-XXIII/9 along track lines of 10,030 NM total length. Data were gained along the transit from Punta Arenas via Neumayer station to the Prydz Bay, East Antarctica, which was the main investigation area of the expedition. The continental slope between Prydz Bay and Kerguelen Plateau was surveyed along two seismic profiles. Multibeam data were also measured during the entire transit from Prydz Bay to Cape Town via the Kerguelen Islands, crossing the Southwest Indian Ridge and the Agulhas Plateau. Most of the time, the multibeam sonar system Hydrosweep DS2 was operated using 59 beams and 90° aperture angle. In shallow water 120° aperture angle was used. The refraction correction was achieved utilizing the system's automatic cross fan calibration and eight CTD profiles, sampled in the Prydz Bay. The dataset contains raw data that are not processed and thus may contain errors and blunders in depth and position. |
Sonar system operators | Juliane Mondzech, Franziska Jurisch, Sarah Agirgöl |
(MaNIDA) data level | 0 |
Data quality / Lineage | |
Point of contact | AWI bathymetry data responsible party |
Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.