Dataset: M48/4 - Atlas Hydrosweep DS2 Data | HOME Imprint |
Archive | unpublished |
Dataset citation | unpublished |
Metadata of dataset | ISO 19115/19139, FGDC |
Cruise | M48/4 |
Navigation system | Meteor C-Nav |
Horizontal reference system (EPSG) | WGS84 geographic (4326) |
Sonar system | Hydrosweep DS2 |
Sonar type | multibeam |
Depth definition | true depths |
Depth datum (EPSG) | MeanSeaLevel depth (5715) |
File format | SAM Electronics SURF format |
File listing | 239 files, as XML file |
Tracklength [km] | 4322 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 40899 |
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 primary focus of M48 was to investigate the high organic productivity in the upwelling region off Namibia and its impact on numerous pelagic and benthic processes. During the fourth leg dissolved and particulate trace elements and radioisotopes were sampled for a comparison of coastal upwelling with oligotrophic conditions in the remote Angola basin and Cape basin. For all benthic surveying activities the mapping with HYDROSWEEP and PARASOUND was an indispensable prerequisite in order to have information for reproducible sampling. Though multibeam data was recorded, it was not the main focus of the cruise and no further information have been provided by the responsible party. |
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.