Dataset: M88/2 - Simrad EM710 data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | M88/2 |
| Navigation system | Meteor - Seapath 320 |
| Horizontal reference system (EPSG) | WGS84 geographic (4326) |
| Sonar system | Simrad EM710 |
| Sonar type | multibeam |
| Depth definition | true depths |
| Depth datum (EPSG) | MeanSeaLevel depth (5715) |
| File format | Simrad multibeam processing format |
| File listing | 139 files, as XML file |
| Tracklength [km] | 594 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 75 |
| 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 | Cruise M88/2 was dedicated to conduct controlled source electromagnetic (CSEM) measurements to study the electrical resistivity structure of possibly gas containing shallow sediments in the German North Sea sector. The experiments were part of the joint venture project "Geopotenzial Deutsche Nordsee" (GPDN), coordinated at BGR. During the 13 days cruise measurements were conducted along seismic profiles in two working areas (A and D) northwest and southwestof Helgoland showing strong amplitude anomalies within the first 200m below the seafloor. The swath width was set to a maximum of ± 65° resulting in seabed coverage of up to 170 m in water depth of 40 m. Due to the very shallow sea west of Helgoland with an essentially flat seafloor the spike filter was set to strong mode and grid data cleaning mode was set to high, thus flagging outlier soundings in real time. Bathymetry was not the primary focus of the cruise. |
| Sonar system operators | Pietrek, Hartmut, Rüdiger Lutz, Anna F. Trampe |
| (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.