Dataset: M114 - Simrad EM122 Data

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Metadata of dataset ISO 19115/19139, FGDC, PANGAEA
CruiseM114
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 listing1232 files, as XML file
Tracklength [km] 6400
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 56467
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 main focus of the cruise M114 was the investigation of seafloor structures, which are related to asphalt deposits on top of submarine ridges and knolls, known as salt diapirs. The EM122 was recording constantly within the permitted areas, either designated to bathymetry surveys or flare imaging-surveys. It was running without any problems with regard to hardware or software during the whole cruise. The weather and sea state was mostly cooperative. Nevertheless, the data quality deteriorated due to higher winds and sea states at a few days during the cruise.
Sonar system operators P. Wintersteller, C. Ferreira, J.-D. Groeneveld, M. Breitzke, C.-W. Hsu, M. Loher, M. Wiebe, A. Gaytan, L. Jimenez, D. Smrzka, J. Zwicker
(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.