Dataset: SO161/4 - Simrad EM120 Data

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Archive unpublished
Dataset citation unpublished
Metadata of dataset ISO 19115/19139, FGDC
CruiseSO161-4
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 listing929 files, as XML file
Tracklength [km] 6526
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 102156
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 overall objective of SO161 was to investigate the structure and the geological history of the convergent margin off Chile and define its key parameters. While Leg 4 investigated the effects of subducting aseismic ridges and fracture zone on seismicity and structure of the Chile Margin. The EM120 was routinely used during SO-161. During rough weather conditions, sharp and fast turns at waypoints, or when the vessel speeds up after station work, accurate reception of acoustic signals was hampered probably due to air bubbles below the transducers. Other acquisition information has not been provided by the responsible party.
Sonar system operators Rudolf Angermann & Christian Wenz
(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.