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John, Uwe (2026): Water column raw data (Kongsberg EM712 entire dataset) of RV MARIA S. MERIAN during cruise MSM139 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.991454

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Published: 2026-02-20 • DOI registered: 2026-03-21

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Abstract:
Raw multibeam bathymetry data were collected aboard RV MARIA S. Merian during cruise MSN139 using a Kongsberg EM 712 multibeam echosounder. The expedition took place during 2025-07-25 – 2025-08-27 from Reykjavik (Iceland) to Reykjavik (Iceland) in the North Atlantic. The overall goal of MSM139 was to investigate the interactions between hydrography, bio-optics, planktonic composition and community connectivity (especially toxigenic algae and their toxins). This is in combination with environmental genomic approaches (metatranscriptomics, metabarcoding, population genomics, paleometagenomics) conducted in five research areas in West Greenland fjords and coastline which differ in their ice coverage, glacial melt water runoffs, and history. The survey results will be used to estimate quantifiable effects of harmful algae blooms on the ecosystem, which are driven by an accelerated glacial melt water runoff. In addition, sediments will be examined for resting stages (cysts) and paleo-communities, focusing on toxigenic species. Data were recorded within the Danish EEZ (Greenland). Sound velocity profiles (SVP) were applied on the data for calibration. Please see environmental data and the cruise report for details. The data are unprocessed and can therefore contain incorrect depth measurements (artifacts) if not further processed. Note that refraction errors may occur when no proper SVP is applied. Data acquisition was done by AWI, provision of the data is supported by the DAM Project Underway Research Data and published according to the FAIR principles.
Keyword(s):
Bathymetry; Multibeam Echosounder
Related to:
John, Uwe; Wölfl, Anne-Cathrin (2026): Multibeam bathymetry raw data (Kongsberg EM712 entire dataset) of RV MARIA S. MERIAN during cruise MSM139 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.989944
Project(s):
DAM Underway Research Data (DAM_Underway)
DataHub Earth and Environment of the Helmholtz Association (DataHub)
Polarregionen im Wandel 1: GreenHAB - Risiken der durch den Klimawandel verursachten schädlichen Algenblüte in grönländischen Gewässern; Leitantrag; Vorhaben: Ökologische und biochemische Schlüsselfunktionen der planktonischen Lebensgemeinschaft (GreenHAB)
Funding:
Federal Ministry of Education and Research (BMBF), grant/award no. 03F0945A: GreenHAB: Risiken der durch den Klimawandel verursachten schädlichen Algenblüte in grönländischen Gewässern
Coverage:
Latitude: 60.565098 * Longitude: -47.504646
Date/Time Start: 2025-07-31T16:51:08 * Date/Time End: 2025-07-31T16:51:08
Minimum ELEVATION: -112.6120 m a.s.l. * Maximum ELEVATION: -112.6120 m a.s.l.
Event(s):
MSM139_0_Underway-6 * Latitude Start: 60.707000 * Longitude Start: -46.521000 * Latitude End: 63.122800 * Longitude End: -53.042000 * Date/Time Start: 2025-07-29T11:26:36 * Date/Time End: 2025-08-22T07:45:30 * Elevation Start: -299.0 m * Elevation End: -2245.0 m * O2A Registry URI: https://registry.o2a-data.de/items/7594 * Campaign: MSM139 (GreenHab) * Basis: Maria S. Merian * Method/Device: EM712 multibeam echosounder (EM712) * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg EM 712 multibeam echosounder during cruise MSM139
Comment:
These data should not be used for navigational purposes.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventJohn, Uwe
2Binary ObjectBinaryJohn, Uwe
3Binary Object (Media Type)Binary (Type)John, Uwe
4Binary Object (File Size)Binary (Size)BytesJohn, Uwe
5Kongsberg datagram raw file nameDatagram rfnJohn, UweExtracted from file
6File contentContentJohn, Uwe
7Data file recording durationData record durationminJohn, UweExtracted with MB-System
8Data file recording distanceData record distancemJohn, UweExtracted with MB-System
9Ship speedShip spknJohn, UweExtracted with MB-System
10Number of pingsPingsJohn, UweExtracted with MB-System
11Start of data file recording, date/timeFile start date/timeJohn, UweExtracted with MB-System
12Start of data file recording, latitudeFile start latitudeJohn, UweExtracted with MB-System
13Start of data file recording, longitudeFile start longitudeJohn, UweExtracted with MB-System
14Start of data file, headingFile start headingdegJohn, UweExtracted with MB-System
15Start of data file, depthFile start depthmJohn, UweExtracted with MB-System
16Stop of data file recording, date/timeFile stop date/timeJohn, UweExtracted with MB-System
17Stop of data file recording, latitudeFile stop latitudeJohn, UweExtracted with MB-System
18Stop of data file recording, longitudeFile stop longitudeJohn, UweExtracted with MB-System
19Stop of data file, headingFile stop headingdegJohn, UweExtracted with MB-System
20Stop of data file, depthFile stop depthmJohn, UweExtracted with MB-System
21DATE/TIMEDate/TimeJohn, UweGeocode
22LATITUDELatitudeJohn, UweGeocode
23LONGITUDELongitudeJohn, UweGeocode
24ELEVATIONElevationm a.s.l.John, UweGeocode
25CommentCommentJohn, Uwe
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 1 (ProcLevel1)
Size:
18 data points

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