Dataset: MSM32 - Simrad EM1002 Data | HOME Imprint |
Archive | unpublished |
Dataset citation | unpublished |
Metadata of dataset | ISO 19115/19139, FGDC |
Cruise | MSM32 |
Navigation system | Merian - Seapath 320 |
Horizontal reference system (EPSG) | WGS84 geographic (4326) |
Sonar system | Simrad EM1002 |
Sonar type | multibeam |
Depth definition | true depths |
Depth datum (EPSG) | MeanSeaLevel depth (5715) |
File format | Simrad multibeam processing format |
File listing | 131 files, as XML file |
Tracklength [km] | 738 |
Generalised track ¹ | KML file |
Gross coverage [km²] (unedited - no warranty) | 446 |
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 shallow water system EM 1002 was only used during a shelf survey. Several surveys were especially designed for collecting multibeam data. During the cruise, the system was used only for water depth less than ~400. Across-track coverage is pproximately 1500 meters in deep water and up to 7.4 times the depth in shallow water. Normal angular coverage is adjustable up to 150°. During the cruise, the swath width was adjusted manually to get the best compromise between coverage and data quality with changing water depth and sea state. The beam spacing may be set to equiangular or equidistant, the latter used during MSM32 |
Sonar system operators | P. Feldens, C. Böttner, S. Hellmann, L. Fu, , J. Kretschmer, I. Mücke, A. Schürer |
(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.