Dataset: MSM14/3 - Simrad EM120 Data

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Archive unpublished
Dataset citation unpublished
Metadata of dataset ISO 19115/19139, FGDC
CruiseMSM14/3
Navigation system Merian - Seapath 200
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 listing1181 files, as XML file
Tracklength [km] 5501
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 28175
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 In order to get detailed information about the seafloor morphology of the study area, the seafloor was surveyed by a SIMRAD EM120 echo sounder system.
Abstract During the cruise the hull-mounted Kongsberg Simrad system EM120 was used for bathymetric mapping. The system was acquiring data throughout the entire cruise, except for minor gaps due to system failures. The SIMRAD EM120 system represents a hull-mounted transducer which periodically (12 kHz) emits a pulse and subsequently records the travel time after the signal was reflected at the seafloor. Knowing the sound velocity of the water column, the travel time of the signal thus provides information about the water depth. 17 000 km² of multi-beam bathymetric data were acquired during the cruise.
Sonar system operators C. Hübscher, M. Ruhnau, B. Weiß
(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.