Citation:

PANGAEA.993765 (dataset in review)

Name: Multibeam bathymetry raw data (Kongsberg EM 122 entire dataset) of RV SONNE during cruise SO317
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Bathymetry; Multibeam Echosounder

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Abstract:

Raw multibeam bathymetry data were collected aboard RV SONNE during cruise SO317 using a Kongsberg EM 122 multibeam echosounder. The expedition took place during 2025-12-29 – 2026-02-18 from San Diego (United States) to San Diego (United States) in the Pacific. The objectives of SONNE cruise SO317 were to carry out environmental baseline and post-impact monitoring in the BGR contract area for the exploration of polymetallic nodules in the NE Pacific at around 12°N/117°W. A seafloor area with a size of 0.023 square kilometers that was impacted by a small-scale test of the pre-prototype nodule collector vehicle Patania II in May 2021 and its corresponding control reference site were revisited and environmentally monitored about 4.5 years after the disturbance. Data were recorded solely within international waters. 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 the Federal Institute for Geosciences and Natural Resources (BGR), 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

Project(s):

DAM Underway Research Data (DAM_Underway)

DataHub Earth and Environment of the Helmholtz Association (DataHub)

Coverage:

Median Latitude: 13.424273 * Median Longitude: -117.700343 * South-bound Latitude: 11.460370 * West-bound Longitude: -119.419707 * North-bound Latitude: 25.153973 * East-bound Longitude: -116.801703

Date/Time Start: 2026-01-01T18:26:07 * Date/Time End: 2026-02-16T00:54:12

Minimum ELEVATION: -6390.6775 m a.s.l. * Maximum ELEVATION: -2274.7957 m a.s.l.

Event(s):

SO317_0_Underway-1 * Latitude Start: 24.646300 * Longitude Start: -118.530000 * Latitude End: 25.160600 * Longitude End: -118.390000 * Date/Time Start: 2026-01-01T18:26:07 * Date/Time End: 2026-02-16T00:56:42 * Elevation: -4087.0 m * O2A Registry URI: https://registry.o2a-data.de/items/7519 * Campaign: (MANGAN 2025) * Basis: * Method/Device: (KEM122) * Comment: Event shows start/end point (date/time & coordinates) of first/last data record using Kongsberg EM 122 multibeam echosounder during cruise SO317

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

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:

68855 data points

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