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Gazis, Iason-Zois; von See, Tim Benedikt; Greinert, Jens (2025): Multibeam bathymetry processed data (Kongsberg EM 2040 working area dataset) of RV ALKOR during cruise AL628, southwest of Bornholm, Baltic Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.984161

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Published: 2025-10-15 • DOI registered: 2025-11-13

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Abstract:
Multibeam bathymetry processed data (EM 2040 multibeam echosounder) of RV ALKOR during cruise AL628 in the Baltic Sea. The raw data (.kmall) were processed using QPS Qimera software (v 2.6), based on the following workflow: 0.Raw data > 1.Apply correct Sound Velocity Profiles -> 2.Create dynamic surface (shallow Mode) -> 3.Apply Spline Filter (Medium/Strong) > 4. Finalize with manual 2D and 3D editing, -> 5.Export in GeoTIFF format and projected in the UTM33N coordinate system (EPSG:32633). The produced rasters are named AL628_EM2040_'working area'_'resolution in cm'. The bathymetry dataset here is gridded at 0.50 m and 0.75 m resolution. The data products were created in the context of the DAM (German Marine Research Alliance), CONMAR research project.
Keyword(s):
AL628; ALKOR; Baltic Sea; Bathymetry; Bornholm; CONMAR; MBES; MMinE-SwEEPER; Multibeam Echosounder
Project(s):
DAM sustainMare - CONMAR: CONcepts for conventional MArine Munition Remediation in the German North and Baltic Sea (CONMAR)
Research Mission of the German Marine Research Alliance (DAM): Protection and sustainable use of marine areas (sustainMare)
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0981A: DAM sustainMare - CONMAR-2, GEOMAR
Horizon Europe (HorizonEU), grant/award no. 101167839: Marine Munition in Europe - Solutions with Economic and Ecological Profits for Efficient Remediation (MMinE-SwEEPER)
Coverage:
Median Latitude: 55.030000 * Median Longitude: 14.615000 * South-bound Latitude: 55.030000 * West-bound Longitude: 14.610000 * North-bound Latitude: 55.030000 * East-bound Longitude: 14.620000
Date/Time Start: 2025-03-16T17:11:44 * Date/Time End: 2025-03-17T06:49:28
Minimum Elevation: -68.0 m * Maximum Elevation: -20.0 m
Event(s):
AL628_48-1 * Latitude Start: 55.030000 * Longitude Start: 14.610000 * Latitude End: 55.030000 * Longitude End: 14.620000 * Date/Time Start: 2025-03-16T17:11:44 * Date/Time End: 2025-03-17T06:49:28 * Elevation Start: -68.0 m * Elevation End: -20.0 m * Campaign: AL628 * Basis: Alkor (1990) * Method/Device: Multibeam (MB)
Comment:
These data should not be used for navigational purposes.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Binary ObjectBinaryGazis, Iason-Zois
2 Binary Object (File Size)Binary (Size)BytesGazis, Iason-Zois
3 Binary Object (Media Type)Binary (Type)Gazis, Iason-Zois
4 Binary Object (MD5 Hash)Binary (Hash)Gazis, Iason-Zois
5 Raster cell sizeRaster cell sizeGazis, Iason-ZoisExtracted from file
6 File contentContentGazis, Iason-Zois
7 Vertical datumVertical datumGazis, Iason-Zois
8 Horizontal datumHorizontal datumGazis, Iason-ZoisExtracted from file
9 Horizontal datum, projection stored in fileHorizontal datum in fileGazis, Iason-ZoisExtracted from file
10 Longitude, westboundLongitude westGazis, Iason-ZoisExtracted from file
11 Longitude, eastboundLongitude eastGazis, Iason-ZoisExtracted from file
12 Latitude, southboundLatitude southGazis, Iason-ZoisExtracted from file
13 Latitude, northboundLatitude northGazis, Iason-ZoisExtracted from file
14 UTM Zone, Universal Transverse MercatorUTM ZoneGazis, Iason-ZoisExtracted from file
15 UTM Easting, Universal Transverse MercatorUTM eastmGazis, Iason-ZoisExtracted from filewestbound
16 UTM Easting, Universal Transverse MercatorUTM eastmGazis, Iason-ZoisExtracted from fileeastbound
17 UTM Northing, Universal Transverse MercatorUTM northmGazis, Iason-ZoisExtracted from filesouthbound
18 UTM Northing, Universal Transverse MercatorUTM northmGazis, Iason-ZoisExtracted from filenorthbound
19 Elevation, minimumElev minm a.s.l.Gazis, Iason-ZoisExtracted from file
20 Elevation, maximumElev maxm a.s.l.Gazis, Iason-ZoisExtracted from file
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
34 data points

Data

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1 
Binary		2 
Binary (Size) [Bytes]		3 
Binary (Type)		4 
Binary (Hash)		5 
Raster cell size		6 
Content		7 
Vertical datum		8 
Horizontal datum		9 
Horizontal datum in file		10 
Longitude west		11 
Longitude east		12 
Latitude south		13 
Latitude north		14 
UTM Zone		15 
UTM east [m]
(westbound)		16 
UTM east [m]
(eastbound)		17 
UTM north [m]
(southbound)		18 
UTM north [m]
(northbound)		19 
Elev min [m a.s.l.]		20 
Elev max [m a.s.l.]
AL628_EM2040_Bornholm-West_75cm.tif23.5 MBytesimage/tiff471382425f7627e5329b208611e2b4880.75mbathymetry raster / negative values in meters for depth measurements (= elevation)Mean Sea LevelWGS 84 / UTM zone 33N, EPSG:32633WGS 84 / UTM zone 33N, EPSG:3263314.614.6555.0255.0533N47445847772260975466100906-29.07-17.35
AL628_EM2040_Bornholm-West_50cm.tif50.1 MBytesimage/tiffd2caab44ba7fe126c5366170c2b633470.5mbathymetry raster / negative values in meters for depth measurements (= elevation)Mean Sea LevelWGS 84 / UTM zone 33N, EPSG:32633WGS 84 / UTM zone 33N, EPSG:3263314.614.6555.0255.0533N47449047769060975786100906-29.12-17.33