Bazhenova, Evgenia A; Bach, Alissa; Hassan, Md Mumit; Eberli, Gregor P; Hebbeln, Dierk (2026): Multibeam bathymetry processed data (Kongsberg EM 122 working area dataset) of RV SONNE during cruise SO306, east of Tanzania, Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.992689
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Published: 2026-03-03 • DOI registered: 2026-04-09
Abstract:
MBES bathymetry data were collected using the ship's own Kongsberg EM 122 multibeam echosounder during the RV SONNE cruise SO306 CoWIO (Port Louis, Mauritius - Durban, South Africa). The primary goal of the cruise was to search for cold-water coral mounds in the West Indian Ocean. Data were recorded in the EEZs of Mayotte, Tanzania, Mozambique, and South Africa. These studies were endorsed as an UN Ocean Decade 2021-2030 of Ocean Science for Sustainable Development activity. This dataset includes a bathymetric grid produced based on the MBES data collected in the EEZ of Tanzania between 2024-08-17 and 2024-08-27. Postprocessing of raw .all files was performed onboard by Evgenia Bazhenova and Alissa Bach, as well as consequently by Md Mumit Hassan in the frame of his work towards the master thesis at the HCU Hamburg. The QPS Qimera software was used to 1) verify that the SVP data were applied correctly based on the time and location; 2) block outer beams and in-turn data to ensure the best possible quality of the overlapping swaths, 3) routinely clean the point cloud using the slice editor. The final grid was interpolated by applying the average interpolation type and 5 minimum neighbours. Depths measured by the MBES are reported in respect to the water level. Only static draft was taken into account. No tidal corrections were applied during the data acquisition or data postprocessing.
Related to:
Hebbeln, Dierk; Wienberg, Claudia; Ansorge, Malte; Bach, Alissa; Bazhenova, Evgenia A; Brix, Saskia; Busse, Marc; Chioze, Ceiça; Corbera, Guillem; Dehning, Klaus; Eberli, Gregor P; Filander, Zoleka; Freiwald, André; Fröhlich, Siefke; Gigli, Federico; Gori, Andrea; Greiffenhagen, Luis; Hoffman, Leon; Jeskulke, Karen; Kalvelage, Tim; Kniest, Jorit; Korfhage, Severin; Lagunova, Nadezhda; Leymann, Tom; Meyer-Schack, Birgit; Nowald, Nicolas; Orejas, Covadonga; Pfennings, Kai; Raddatz, Jacek; Ruhland, Götz; Schwarz, Ralf; Shunula, Peter; Viadora, Rosário; Vittori, Vincent; Westbeek, Jara; Wilsenack, Maik; Yahya, Saleh (2024): Cold-Water Corals in the West Indian Ocean, Cruise No. SO306, August 8 - September 9, 2024, Port Louis (Mauritius) – Durban (South Africa). SONNE-Berichte, Begutachtungspanel Forschungsschiffe, SO306, 126 pp, https://doi.org/10.48433/cr_so306
Source:
Bazhenova, Evgenia A; Bach, Alissa; Eberli, Gregor P; Hebbeln, Dierk (2024): Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV SONNE during cruise SO306 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.973306
Funding:
Bundesministerium für Bildung und Forschung, Bonn (BMBF), grant/award no. 03G0306A: CoWIO: Cold-water Corals in the West Indian Ocean
Coverage:
Median Latitude: -20.871000 * Median Longitude: 39.419000 * South-bound Latitude: -29.629000 * West-bound Longitude: 32.857900 * North-bound Latitude: -12.113000 * East-bound Longitude: 45.980100
Date/Time Start: 2024-08-11T03:09:55 * Date/Time End: 2024-09-07T09:10:19
Event(s):
SO306_0_Underway-3 * Latitude Start: -12.113000 * Longitude Start: 45.980100 * Latitude End: -29.629000 * Longitude End: 32.857900 * Date/Time Start: 2024-08-11T03:09:55 * Date/Time End: 2024-09-07T09:10:19 * O2A Registry URI: https://registry.o2a-data.de/items/7519 * Campaign: SO306 (COWIO) * Basis: Sonne_2 * Method/Device: EM122 multibeam echosounder (EM122) * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg EM 122 multibeam echosounder during cruise SO306
Comment:
These data should not be used for navigational purposes.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Binary Object | Binary | Bazhenova, Evgenia A | |||
| 2 | Binary Object (Media Type) | Binary (Type) | Bazhenova, Evgenia A | |||
| 3 | Binary Object (File Size) | Binary (Size) | Bytes | Bazhenova, Evgenia A | ||
| 4 | Raster cell size | Raster cell size | Bazhenova, Evgenia A | Extracted from file | ||
| 5 | File content | Content | Bazhenova, Evgenia A | |||
| 6 | Vertical datum | Vertical datum | Bazhenova, Evgenia A | |||
| 7 | Horizontal datum | Horizontal datum | Bazhenova, Evgenia A | Extracted from file | ||
| 8 | Horizontal datum, projection stored in file | Horizontal datum in file | Bazhenova, Evgenia A | Extracted from file | ||
| 9 | Longitude, westbound | Longitude west | Bazhenova, Evgenia A | Extracted from file | ||
| 10 | Longitude, eastbound | Longitude east | Bazhenova, Evgenia A | Extracted from file | ||
| 11 | Latitude, southbound | Latitude south | Bazhenova, Evgenia A | Extracted from file | ||
| 12 | Latitude, northbound | Latitude north | Bazhenova, Evgenia A | Extracted from file | ||
| 13 | Elevation, minimum | Elev min | m a.s.l. | Bazhenova, Evgenia A | Extracted from file | |
| 14 | Elevation, maximum | Elev max | m a.s.l. | Bazhenova, Evgenia A | 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:
12 data points