Dataset: M75/1b - Simrad EM120 Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | M75/1b |
| Navigation system | Meteor C-Nav |
| 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 | Simrad multibeam processing format |
| File listing | 255 files, as XML file |
| Tracklength [km] | 2915 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 12876 |
| 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 goal of cruise M75-1B was long-term monitoring of the currents, some hydrographic properties and vertical particle fluxes at the narrowest section of the Mozambique Channel, to obtain detailed information on the hydrography along this section, and to obtain information on the sediment composition along the mooring section. The Multibeam EM 120 was used in combination with the PARASOUND system to obtain a detailed three-dimensional bathymetric image of the seafloor and to detect the geophysical properties of the seabed. The EM120 continuously recorded the tracks across the Mozambique Channel at and between stations on the transect. The width of a Multibeam track depends on the water depth and varied between 3 and 5 kilometres. If possible they sailed the same track back and forth, mostly with a small offset of 1 kilometre to improve and extend our data because also the resolution of the Multibeam data decreased due to the high speed of the ship (~12 kn). |
| Sonar system operators | C. Karas |
| (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.