Dataset: SO131 - Atlas Hydrosweep DS Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | SO131 |
| Navigation system | Sonne GPS SkyFix |
| Horizontal reference system (EPSG) | WGS84 geographic (4326) |
| Sonar system | Hydrosweep DS |
| Sonar type | multibeam |
| Depth definition | true depths |
| Depth datum (EPSG) | MeanSeaLevel depth (5715) |
| File format | Raw Hydrosweep DUX format |
| File listing | 198 files, as XML file |
| Tracklength [km] | 10836 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 64320 |
| 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 | |
| Abstract | SO131 aimed to study the structure and composition of the Ninetyeast Ridge and the adjacent oceanic basins, as well as conducting a high resolution quasi-3D survey providing necessary information for an effective and reliable operation of the future oceanic seismological observatory at ODP site 1107. A number of different geophysical methods and acquisition arrangements were employed for this approach. Data from the HYDROSWEEP system were continuously recorded during the whole cruise after leaving the Indian EEZ and until reaching Australian waters near Cocos-(Keeling-) Islands. In total in 740 hours a number of 216026 swaths, i.e. 12745534 beams were recorded. Due to long periods with bad weather conditions data quality was often very poor, there were even periods with no HYDROSWEEP data at all. On average, the amount of usable beams were around 70%, whereas in good weather conditions a rate of more than 90% can be achieved. |
| Sonar system operators | W. Weinrebe |
| (MaNIDA) data level | 0 |
| Data quality / Lineage | |
| Point of contact | MARUM bathymetry data responsible party |
| Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.