Dataset: ARK-II/4 - Seabeam data | HOME Imprint |
Archive | DOI |
Dataset citation | HTML, BibTeX, RIS |
Metadata of dataset | ISO 19115/19139, FGDC, PANGAEA |
Cruise | ARK-II/4 |
Navigation system | Polarstern - Transit GPS - INDAS |
Horizontal reference system (EPSG) | WGS84 geographic (4326) |
Sonar system | Seabeam |
Sonar type | multibeam |
Depth definition | soundings / normalised to 1500 m/s |
Depth datum (EPSG) | MeanSeaLevel depth (5715) |
File format | Seabeam multibeam GEO format |
File listing | 11 files, as XML file |
Tracklength [km] | 3146 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 5622 |
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 | Multibeam data were collected during R/V Polarstern cruise ARK-II/4. Systematic profiling and data recording was executed in Fram Strait crossing Molloy Deep. Data recording was supervised by two hydrographers. Data are unprocessed and may contain outliers and blunders. Therefore the data should not directly be used for grid calculations and charting projects but need to be edited furthermore. One file normally contains a measurement period of one day. The dataset consists of 11 files in originally Seabeam binary multibeam format (*.geo) and additionally of 11 files converted into a more common Seabeam Format (*.mb14). Both datasets are compressed with GZIP to size of 8.6 MB. Seabeam data files (*.mb14) can be processed using the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/) or the software package CARAIBES from IFREMER. |
Sonar system operators | Hans Werner Schenke, Norman Cherkis |
(MaNIDA) data level | 0 |
Data quality / Lineage | |
Point of contact | AWI bathymetry data responsible party |
Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.