Dataset: M81/2c - Simrad EM120 Data | HOME Imprint |
Archive | unpublished |
Dataset citation | unpublished |
Metadata of dataset | ISO 19115/19139, FGDC |
Cruise | M81/2c |
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 | 665 files, as XML file |
Tracklength [km] | 5103 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 66943 |
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 goal of M81/2c GASLOG was to investigate the water column around the Logatchev hydrothermal vent field (LHF) on the mid-Atlantic ridge. The hull-mounted multibeam system EM 120 (12 kHz) was used to record bathymetry and backscatter data during the transit (except within the EEZs) and during field work around Logatchev. The system parameters were set to automatic mode with a fix swath angle of 120°. Some data is very much disturbed by heavy movement of the vessel. Additionally to the multibeam data CTD data were taken. |
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.