Dataset: SO197 - Simrad EM120 Data

HOME 
Imprint 
Archive unpublished
Dataset citation unpublished
Metadata of dataset ISO 19115/19139, FGDC
CruiseSO197
Navigation system Sonne GPS+GLONASS GG24
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 listing1264 files, as XML file
Tracklength [km] 7852
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 83931
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 objective of SO197 was to study the rift structures and the continent-ocean transition at the southeastern border of the South China Sea in time and space with the final goal to derive a model that explains the structures and the mode of extension. The second objective that has a close relation to the first purpose is a detailed reconstruction of the opening history of the South China Sea oceanic basin. Bathymetric mapping has been conducted continuously. The SIMRAD EM120 operated throughout the cruise without interruption. Data quality was generally good to excellent. The reduced ship speed of 5.4 kn provided optimal data acquisition conditions in combination with the perfect sea conditions. The operational parameters used during the cruise leg have been: no tide correction, equidistant beam coverage, automatic sounding mode and fan coverage, sound velocity at ships keel from ships sensor. Beam angles and across track distance were fixed to 62° and 13000 m, respectively.
Sonar system operators Stefan Ladage
(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.