Dataset: SO209/2 - Simrad EM120 Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | SO209-2 |
| Navigation system | Sonne GPS+GLONASS GG24 |
| 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 | 152 files, as XML file |
| Tracklength [km] | 1350 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 7260 |
| 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 | Destructive subduction zone earthquakes, like the Mw=8.8 27. February 2010 Chile earthquake, are caused by sudden slippage of the subduction megathrust fault. During the cruise a dense network of ocean bottom seismometers data was deployed that will record for three month the aftershock sequence of the Great Mw=8.8 Chile earthquake of February 2010. Data will be used to define the geographical location and nature of the processes controlling the updip limit and slip distribution. Multibeam mapping of the ocean floor was performed routinely when entering Peruvian waters. Unfortunately, in spite of favorable weather conditions and a comparatively low speed of the vessel, the data quality during the SO209 cruise was generally insufficient or bad. Abundant noise deteriorated the recordings. When the vessel headed against wind and swell the recordings were totally dominated by noise and the system was not able to determine a correct sea bottom depth. |
| Sonar system operators | Wilhelm 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.