Dataset: SO182 - Simrad data

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Metadata of dataset ISO 19115/19139, FGDC, PANGAEA
CruiseSO182
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 listing1656 files, as XML file
Tracklength [km] 9864
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 102951
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 Multibeam data were collected to extend the global database of seafloor topography and to provide high resolution bathymetry for the expedition's scientific program.
Abstract Multibeam data were collected during R/V Sonne cruise SO182 leading to the Transkei Basin, Agulhas Ridge and Agulhas Plateau. Multibeam sonar system was Kongsberg Simrad EM-120. Data are unprocessed and may contain outliers and blunders and should not be used for grid calculations and charting projects without further editing. The raw multibeam sonar data in Simrad multibeam processing format (*.all) were recorded with Simrad SIS software running on UNIX operating system. 1660 files are compressed with GZIP to size of 5.93 GB. One dataset contains a measurement period of half an hour. Simrad data files can be processed using the software packages CARIS HIPS/SIPS or with the open source software package MB-System (http://www.ldeo.columbia.edu/res/pi/MB-System/).
Sonar system operators Kathrin Huhn, Katja Zimmermann, Tshifhiwa Mabidi
(MaNIDA) data level 0
Data quality / Lineage
Point of contact AWI bathymetry data responsible party
Aggregation


 (¹): KML file is created online from database applying track generalization ±50 meter.