Dataset: M125 SIMRAD EM122 Data

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Archive unpublished
Dataset citation unpublished
Metadata of dataset ISO 19115/19139, FGDC
CruiseM125
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 listing433 files, as XML file
Tracklength [km] 2098
Generalised track ¹ KML file
Gross coverage [km²] (unedited - no warranty) 6862
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 R/V METEOR expedition M125 ("SAMBA") focused on the influence of paleoceanographic changes off NE Brazil on the continental hydrological cycle. For this purpose, we obtained 202 m of gravity (24 stations) and piston cores (9) at seven sections on the shelf and continental slope close to river mouths from Cabo Frio in the south to the Rio Sao Francisco in the north. Coring stations were determined after intensive echosounder surveys (total: 1221 NM). On-board foraminiferal biostratigraphy, as well as color and XRF-scanning already provided first stratigraphic constraints, indicating the preservation of different regional paleoclimatic signals at the respective sections. The work programme for each working area comprised hydroacoustic surveys to identify suitable coring sites with continuous muddy sediment cover.
Sonar system operators A. Conforti, S. J. Batenburg and K. Hatsukano
(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.