Dataset: M84/4 - Simrad EM122 Data

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Metadata of dataset ISO 19115/19139, FGDC, PANGAEA
CruiseM84/4
Navigation system Meteor C-Nav
Horizontal reference system (EPSG) WGS84 geographic (4326)
Sonar system Simrad EM122
Sonar type multibeam
Depth definition True depths
Depth datum (EPSG) MeanSeaLevel depth (5715)
File format Simrad multibeam processing format
File listing2451 files, as XML file
Tracklength [km] 3396
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 6087
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 During RV METEOR Cruise M84-4 the hull-mounted echosounder systems Kongsberg Simrad EM 122 was used for bathymetric mapping in middle and deep water depths. The systems worked reliable during the whole cruise. The system has problems with rough weather conditions: The outer beams of EM122 get wobbling in depth deeper than2000 m. Besides the depth values the EM122 provides also backscatter information and pseudo-sidescan images.
Sonar system operators (none)
(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.