Dataset: M48/4 - Atlas Hydrosweep DS2 Data

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Archive unpublished
Dataset citation unpublished
Metadata of dataset ISO 19115/19139, FGDC
CruiseM48/4
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 listing239 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.