Dataset: M112 - Simrad EM122 Data

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Metadata of dataset ISO 19115/19139, FGDC, PANGAEA
CruiseM112
Navigation system Meteor - Seapath 320
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 listing1170 files, as XML file
Tracklength [km] 7794
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 58611
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 M112 followed the hypothesis that gas hydrates formed from high methane flux rates combined with freshwater fluids in the mud volcanoes are influencing the high abundance of chemosynthetic live in that submarine mountain area. In total, 36 surveys for hydroacoustic mapping have been performed during M112. Bathymetric surveys were usually conducted with a vessel speed of maximum 10kn, depending on the weather conditions.
Sonar system operators Christian dos Santos Ferreira & Paul Wintersteller
(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.