Bazhenova, Evgenia A; Bach, Alissa; Eberli, Gregor P; Hebbeln, Dierk (2026): Multibeam bathymetry processed data (Kongsberg EM 122 working area dataset) of RV SONNE during cruise SO306, off Mayotte, Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.992001
Always quote citation above when using data! You can download the citation in several formats below.
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 4 bathymetric grids produced based on the MBES data collected in the EEZ of Mayotte between 2024-08-11 and 2024-08-15. The grids represent 4 surveyed areas: 1) transit to the calibration area; 2) calibration area for the EM122 MBES north east of Mayotte; 3) main working area south west of Mayotte; 4) transits between the two working areas. Postprocessing of raw .all files was performed onboard by Evgenia Bazhenova and Alissa Bach using the QPS Qimera software. Data quality control included 1) verification that the SVP data were applied correctly based on the time and location; 2) blocking outer beams and in-turn data to ensure the best possible quality of the overlapping swaths, 3) manual point cloud cleaning if required. 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 | Raster cell size | Raster cell size | Bazhenova, Evgenia A | Extracted from file | ||
| 3 | File content | Content | Bazhenova, Evgenia A | |||
| 4 | Horizontal datum | Horizontal datum | Bazhenova, Evgenia A | Extracted from file | ||
| 5 | Horizontal datum, projection stored in file | Horizontal datum in file | Bazhenova, Evgenia A | Extracted from file | ||
| 6 | Longitude, westbound | Longitude west | Bazhenova, Evgenia A | Extracted from file | ||
| 7 | Longitude, eastbound | Longitude east | Bazhenova, Evgenia A | Extracted from file | ||
| 8 | Latitude, southbound | Latitude south | Bazhenova, Evgenia A | Extracted from file | ||
| 9 | Latitude, northbound | Latitude north | Bazhenova, Evgenia A | Extracted from file | ||
| 10 | Elevation, minimum | Elev min | m a.s.l. | Bazhenova, Evgenia A | Extracted from file | |
| 11 | 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:
44 data points