Dataset: M137 - Simrad EM122 Data
Imprint
| HOME Imprint |
| Archive | unpublished |
| Dataset citation | unpublished |
| Metadata of dataset | ISO 19115/19139, FGDC |
| Cruise | M137 |
| 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 | 1047 files, as XML file |
| Tracklength [km] | 3609 |
| Generalised track ¹ | KML file |
| Gross coverage [km²] (unedited - no warranty) | 6679 |
| 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 major addressed during the cruise M137, which was conducted were the following: To experimentally elucidate the magnitude and pathways of benthic nutrient fluxes (N,P, Fe, other trace metals) in response to the sustained availability of bottom water NO3- and O2. The results will be linked to time series of O2, NO3- and NO2- in order to allow for a better up-scaling and predictive capability of the benthic-pelagic coupling in the Peruvian OMZ at seasonal and inter-annual time scales. Another important goal of the ex situ and in situ experiment series was to determine the timing and magnitude of sulfidic events after stepwise depletion of O2, NO3- and NO2- in the bottom water. These studies encompass the determination of the capacity of bacteria and foraminifera to survive conditions of bottom water depleted in O2, NO3- and NO2-. 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 | MARUM bathymetry data responsible party |
| Aggregation |
(¹): KML file is created online from database applying track generalization ±50 meter.