Hennke, Anne; Krüger, Marcus: Multibeam bathymetry processed data (Kongsberg EM2040 working area dataset) of RV ALKOR during cruise AL652/2, MPA Fehmarnbelt, Baltic Sea [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995658 (dataset in review)
Abstract:
Swath sonar bathymetry data were acquired during cruise AL652-2 with the research vessel RV ALKOR using a hull-mounted Kongsberg EM2040 multibeam echosounder (MBES). The cruise took place between 25.05.2026 - 02.06.2026 in the German Baltic Sea. The approximate depth range of the mapped area is between 15-30m. To improve MBES data quality, sound velocity profile (SVP) casts were conducted in the vicinity of the mapped area prior to and after each survey using a Sound Velocity Probe. The data set includes data from an area called 'Oejet', which is a part of the Nature Conservation Area (NCA) 'Fehmarnbelt', located in the western Baltic Sea. The survey was carried out to support baseline habitat studies in this region. Data processing involved the application of a weak spline filter and manual cleaning to remove erroneous soundings, performed using Qimera (https://qps.nl/qimera/#). A bathymetric raster was generated and exported in GeoTIFF format with a spatial resolution of 0.25 m (negative depth values), referenced to WGS84 as the vertical datum and projected in UTM coordinates. The dataset consists of two surveys (Stations AL652-2_65, AL652-2_77) that were combined into a single final grid.
Funding:
Bundesamt für Naturschutz (BfN), grant/award no. 3525NK3020: ROVKA - Reefs of the Baltic Sea - Occurrence and climate protection performance of Fucus and Saccharina in the German EEZ
Coverage:
Latitude: 54.629000 * Longitude: 11.018000
Event(s):
AL652/2_0_Underway-2 * Latitude: 54.629000 * Longitude: 11.018000 * Campaign: AL652/2 (IMBOMPA/2) * Basis: Alkor (1990) * Method/Device: Kongsberg EM2040 multibeam echosounder (Kongsberg Maritime)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Hennke, Anne | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Hennke, Anne | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Hennke, Anne | ||
| 4 | Raster cell size | Raster cell size | Hennke, Anne | Extracted from file | ||
| 5 | File content | Content | Hennke, Anne | |||
| 6 | Vertical datum | Vertical datum | Hennke, Anne | |||
| 7 | Horizontal datum | Horizontal datum | Hennke, Anne | Extracted from file | ||
| 8 | Horizontal datum, projection stored in file | Horizontal datum in file | Hennke, Anne | Extracted from file | ||
| 9 | Longitude, westbound | Longitude west | Hennke, Anne | Extracted from file | ||
| 10 | Longitude, eastbound | Longitude east | Hennke, Anne | Extracted from file | ||
| 11 | Latitude, southbound | Latitude south | Hennke, Anne | Extracted from file | ||
| 12 | Latitude, northbound | Latitude north | Hennke, Anne | Extracted from file | ||
| 13 | UTM Zone, Universal Transverse Mercator | UTM Zone | Hennke, Anne | Extracted from file | ||
| 14 | UTM Easting, Universal Transverse Mercator | UTM east | m | Hennke, Anne | Extracted from file | westbound |
| 15 | UTM Easting, Universal Transverse Mercator | UTM east | m | Hennke, Anne | Extracted from file | eastbound |
| 16 | UTM Northing, Universal Transverse Mercator | UTM north | m | Hennke, Anne | Extracted from file | southbound |
| 17 | UTM Northing, Universal Transverse Mercator | UTM north | m | Hennke, Anne | Extracted from file | northbound |
| 18 | Elevation, minimum | Elev min | m a.s.l. | Hennke, Anne | Extracted from file | |
| 19 | Elevation, maximum | Elev max | m a.s.l. | Hennke, Anne | Extracted from file |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
17 data points