Dataset: SO149 - Atlas HSDS Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | SO149 |
| Navigation system | Sonne - INS - GPS |
| Horizontal reference system (EPSG) | WGS84 geographic (4326) |
| Sonar system | Simrad EM120 |
| Sonar type | multibeam |
| Depth definition | true depths |
| Depth datum (EPSG) | MeanSeaLevel depth (5715) |
| File format | Raw Hydrosweep DUX format |
| File listing | 442 files, as XML file |
| Tracklength [km] | 6656 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 27141 |
| 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 | The goals of R/V Sonne Cruise SO149 included the increase of structural information provided by high resolution seismic data in the vicinity of known fluid upflow zones, identification and 3D imaging of potential fluid pathways at high source frequencies, and collecting of heatflow and in situ physical properties data in order to quantify exchange processes of fluid and matter. The multibeam echosounder Hydrosweep on R/V Sonne was routinely used during the cruise and serviced by the Parasound operator during a 24-hour watch. The system operates at a frequency of 15.5 kHz. To compress refraction effects on the outer beams, the system uses a calibration mode to compare depth values of the central and outer beams in order to calculate a mean sound velocity by producing the best fit between both values. This configuration minimizes residual errors to values smaller than 0.5% of water depth. |
| Sonar system operators | N/A |
| (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.