Citation:

PANGAEA.992000 (dataset in review)

Name: Multibeam bathymetry raw data (Kongsberg EM2040 entire dataset) of RV ALKOR during cruise AL644
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bathymetry; Multibeam Echosounder

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Abstract:

Swath sonar bathymetry data recorded during AL644 on RV ALKOR using the hull-mounted Kongsberg EM2040 multibeam echosounder. The cruise took place between 17.11.2025 - 28.11.2025 in the German Baltic Sea. The approximate depth range of the mapped areas is between 10-30m. 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 CTD. The data set includes data from the 'Adlergrund' (ADG), located within the Pommeranian Bay/Rønne Bank Nature Conservation Area (NCA), from the 'Kadet Trench ('KDR') NCA and the Fehmarn Belt ('FB') NCA. The mapping has been conducted for baseline habitat studies in the area.

Keyword(s):

Bathymetry; Multibeam Echosounder

Funding:

Bundesamt für Naturschutz (BfN), grant/award no. 352520010A: SCHUFI - Support in the development of measures and implementation of protection concepts for fish

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:

Median Latitude: 54.599155 * Median Longitude: 11.982401 * South-bound Latitude: 54.432462 * West-bound Longitude: 10.035905 * North-bound Latitude: 54.811348 * East-bound Longitude: 14.402089

Date/Time Start: 2025-11-17T09:42:00 * Date/Time End: 2025-11-28T02:06:42

Minimum ELEVATION: -36.3795 m a.s.l. * Maximum ELEVATION: -12.6547 m a.s.l.

Event(s):

AL644_0_Underway-7 * Latitude Start: 54.534800 * Longitude Start: 10.035900 * Latitude End: 54.592200 * Longitude End: 10.919900 * Date/Time Start: 2025-11-17T09:42:00 * Date/Time End: 2025-11-28T02:07:04 * O2A Registry URI: https://registry.o2a-data.de/items/13498 * Campaign: (TARMAP 2025) * Basis: * Method/Device: * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg EM 2040 multibeam echosounder during cruise AL644

Comment:

These data should not be used for navigational purposes.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Hennke, Anne
2	Binary Object	Binary		Hennke, Anne
3	Binary Object (Media Type)	Binary (Type)		Hennke, Anne
4	Binary Object (File Size)	Binary (Size)	Bytes	Hennke, Anne
5	Kongsberg datagram raw file name	Datagram rfn		Hennke, Anne	Extracted from file
6	File content	Content		Hennke, Anne
7	Data file recording duration	Data record duration	min	Hennke, Anne	Extracted with MB-System
8	Data file recording distance	Data record distance	m	Hennke, Anne	Extracted with MB-System
9	Ship speed	Ship sp	kn	Hennke, Anne	Extracted with MB-System
10	Number of pings	Pings		Hennke, Anne	Extracted with MB-System
11	Start of data file recording, date/time	File start date/time		Hennke, Anne	Extracted with MB-System
12	Start of data file recording, latitude	File start latitude		Hennke, Anne	Extracted with MB-System
13	Start of data file recording, longitude	File start longitude		Hennke, Anne	Extracted with MB-System
14	Start of data file, heading	File start heading	deg	Hennke, Anne	Extracted with MB-System
15	Start of data file, depth	File start depth	m	Hennke, Anne	Extracted with MB-System
16	Stop of data file recording, date/time	File stop date/time		Hennke, Anne	Extracted with MB-System
17	Stop of data file recording, latitude	File stop latitude		Hennke, Anne	Extracted with MB-System
18	Stop of data file recording, longitude	File stop longitude		Hennke, Anne	Extracted with MB-System
19	Stop of data file, heading	File stop heading	deg	Hennke, Anne	Extracted with MB-System
20	Stop of data file, depth	File stop depth	m	Hennke, Anne	Extracted with MB-System
21	DATE/TIME	Date/Time		Hennke, Anne		Geocode
22	LATITUDE	Latitude		Hennke, Anne		Geocode
23	LONGITUDE	Longitude		Hennke, Anne		Geocode
24	ELEVATION	Elevation	m a.s.l.	Hennke, Anne		Geocode
25	Comment	Comment		Hennke, Anne

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 1 (ProcLevel1)

Size:

9684 data points

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