Dataset: SO183 - Simrad data | HOME Imprint |
Archive | DOI |
Dataset citation | HTML, BibTeX, RIS |
Metadata of dataset | ISO 19115/19139, FGDC, PANGAEA |
Cruise | SO183 |
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 | 2266 files, as XML file |
Tracklength [km] | 20075 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 211086 |
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 | Multibeam data were collected to extend the global database of seafloor topography and to provide high resolution bathymetry for the expedition's scientific program. |
Abstract | The swath sonar bathymetry data were acquired as part of the project AISTEK-II during SONNE cruise SO183. The data were sampled using the multibeam sonar system Simrad EM 120 from Kongsberg, which operates on a frequency of 12 kHz, maximum swath width of 150 degree and 191 preformed beams. Mean sound velocity was gained from six sensor CTD measurements acquired during the cruise. Ship position was measured by GPS and DGPS, ship orientation by gyrocompass. The density and quality of depths were decreased during bad weather conditions. Raw data are delivered within Simrad format. XYZ data files are provided in addition, derived from edited data and containing a time period of 8 hours each. |
Sonar system operators | Ralf Krocker, Roland Niebling, Alexander Labrenz |
(MaNIDA) data level | 0 |
Data quality / Lineage | |
Point of contact | AWI bathymetry data responsible party |
Aggregation | crossReference: SO183/001-1 CTD data crossReference: SO183/004-1 CTD data crossReference: SO183/007-1 CTD data crossReference: SO183/013-1 CTD data crossReference: SO183/016-1 CTD data crossReference: SO183/020-1 CTD data |
(¹): KML file is created online from database applying track generalization ±50 meter.