Dataset: POS385 - Seabeam 1050
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | POS385 |
| Navigation system | Poseidon - GG24 |
| Horizontal reference system (EPSG) | WGS84 geographic (4326) |
| Sonar system | SeaBeam 1050 |
| Sonar type | multibeam |
| Depth definition | True depths |
| Depth datum (EPSG) | MeanSeaLevel depth (5715) |
| File format | Elac exchange format XSE |
| File listing | ? |
| Tracklength [km] | ? |
| Generalised track ¹ | ? |
| Gross coverage [km²] (unedited - no warranty) | ? |
| 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 | A SEABEAM 1050 Multibeam Echosounder System (provided by the IFM-GEOMAR) was applied for bathymetric surveys during RV Poseidon cruise POS 385. The operating frequency of SEABEAM 1050 is 50 kHz. Two narrow beam width transducerarrays are pinging quasi-simultaneously into 14 directed sectors with a high acoustic transmission level. The receiving beamformer generates 3 narrow beams within each sector with a beam width of 1.5 degree and a spacing of 1.25 degree , called subfans. A complete fan comprises three subfans, i.e. there are 14 sectors x 3 beams x 3 subfans = 126 beams in total. The relatively high operating frequency of 50 kHz in conjunction with special small size transducers offers two advantages: high coverage and narrow beam width. The application of preformed beams guarantees extremely good side lobe suppression and a very low error rate. |
| Sonar system operators | Paul Wintersteller, Ingo Klaucke |
| (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.