Dataset: SO186/2 - Simrad EM120 Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | SO186-2 |
| 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 | Simrad multibeam processing format |
| File listing | 1292 files, as XML file |
| Tracklength [km] | 6480 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 55615 |
| 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 main scientific objective of the SO186-2 was to investigate the southern part of the rupture zone of the 26th December 2004 9.3 magnitude earthquake, that caused the catastrophic tsunami of that date, and the rupture zone of the 8.7 magnitude earthquake of March 28th 2005. The EM120 operated throughout the cruise without interruption. Data quality was generally very good, mainly due to the excellent weather conditions experienced. Additionally, a reduced ship speed of 5.4 kn. The operational parameters have been set as: no tide correction, equidistant beam coverage, automatic sounding mode and fan coverage, sound velocity at ships keel from ships sensor and sound velocity in water column from profile of SO186-B. Beam angles and across track distance were fixed to 65° and 8500 m, respectively. But artifacts due to slight errors in navigation and especially the attitude of the vessel result in considerable along and across track noise . |
| 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.