Dataset: M138 - Simrad EM122 Data
Imprint
| HOME Imprint |
| Archive | DOI |
| Dataset citation | HTML, BibTeX, RIS |
| Metadata of dataset | ISO 19115/19139, FGDC, PANGAEA |
| Cruise | M138 |
| 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 listing | 1276 files, as XML file |
| Tracklength [km] | 4789 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 41948 |
| 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 work performed during the cruise M138 covered the major aspects of organic matter cycling and their links to the nitrogen and carbon cycle processes in the water column off Peru. To this end the major objectives of M138 were: to assess the article distribution and organic matter in the OMZ off Peru, to quantify the particle/organic matter fluxes through the OMZ and to decipher the role of zooplankton therein, to investigate the role of particles/organic matter availability for N2 fixation, N loss, N2 O formation, microbiological diversity and activity, to assess the role of anoxia on particle remineralisation rates and elemental stoichiometry and to investigate the variability of the hydrodynamical forcing relevant for nutrient turnover. Though multibeam has been recorded during the cruise, it was not a major focus and the responsible party provided no acquisition information. |
| Sonar system operators | N/A |
| (MaNIDA) data level | 0 |
| Data quality / Lineage | |
| Point of contact | GEOMAR bathymetry data responsible party |
| Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.