Dataset: SO216 - Simrad EM120 Data | HOME Imprint |
Archive | DOI |
Dataset citation | HTML, BibTeX, RIS |
Metadata of dataset | ISO 19115/19139, FGDC, PANGAEA |
Cruise | SO216 |
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 | 760 files, as XML file |
Tracklength [km] | 5142 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 29415 |
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 | During SO-216 the 12 kHz Simrad EM120 multibeam system of RV Sonne was used. This system works with 191 beams, where the maximum total angle of the emission beam is 150° across track and 2° along track. To obtain a high data accuracy, however, lower beam angles across track have been used (either 120° during transits or 90° within the main working area). Furthermore, the system was calibrated to allow correction of the ship's motion. Twice a roll 15 and pitch calibration procedure was started: the first calibration was on 19 June 2011 (Site 002MB; along a line from 3°51.50'S/ 152°08.00'E to 3°55.90'S/ 152°10.50'E), the second calibration was performed on 20 June 2011 (Site 006MB; along a line from 3 47.90'S/ 152°06.00'E to 3°44.90'S/ 152°06.00'E) |
Sonar system operators | Wolfgang Bach, Niels Jöns, Volker Ratmeyer |
(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.