Citation:

PANGAEA.984201

Name: Physical oceanography from CTD stations conducted during RV ALKOR cruise AL575 in the North Sea
Published: 2025-08-13
License: https://creativecommons.org/licenses/by/4.0/
Keywords: North Sea; oceanography

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Published: 2025-08-13 • DOI registered: 2025-09-11

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Abstract:

Physical oceanographic parameters were recorded during Alkor cruise AL575 in the North Sea. Two CTD stations were conducted at 30.06.2022 and 11.07.2022, respectively. Data was measured and recorded by using a Seabird SBE9plus CTD. Water column data and near-seafloor profiles shall provide oceanographic baseline data in areas of potential offshore carbon storage sites.

Keyword(s):

North Sea; oceanography

Related to:

Haeckel, Matthias; Schmidt, Mark (2024): Assessing the risk of greenhouse gas emissions from abandoned wells, Cruise No. AL575, 27 JUNE 2022 - 13 JULY 2022, Kiel - Kiel, GEOSTOR leak. Alkor-Berichte, GEOMAR Helmholtz Centre for Ocean Research Kiel, AL575, 33 pp, https://doi.org/10.3289/CR_AL575

References:

Pike, J M; Beiboer, F L (1993): A Comparison Between Algorithms for the Speed of Sound in Seawater. The Hydrographic Society, Special Publication No. 34

Project(s):

DAM CDRmare - GEOSTOR: Submarine Carbon Dioxide Storage in Geological Formations of the German North Sea (GEOSTOR)

Research Mission of the German Marine Research Alliance (DAM): Marine carbon sinks in decarbonisation pathways (CDRmare)

Funding:

Federal Ministry of Education and Research (BMBF), grant/award no. 03F0893A : DAM CDRmare - GEOSTOR, GEOMAR

Coverage:

Median Latitude: 54.520449 * Median Longitude: 6.371175 * South-bound Latitude: 54.165520 * West-bound Longitude: 2.219030 * North-bound Latitude: 56.969140 * East-bound Longitude: 6.972340

Date/Time Start: 2022-06-30T22:11:15 * Date/Time End: 2022-07-11T16:30:51

Minimum DEPTH, water: 0.294 m * Maximum DEPTH, water: 71.839 m

Event(s):

AL575_1-1 * Latitude: 56.967290 * Longitude: 2.221260 * Date/Time: 2022-06-30T22:06:25 * Elevation: -76.0 m * Location: North Sea * Campaign: (GEOSTOR leak) * Basis: * Method/Device: (CTD-RO)

AL575_16-1 * Latitude: 54.165590 * Longitude: 6.971010 * Date/Time: 2022-07-11T14:42:22 * Elevation: -39.0 m * Location: North Sea * Campaign: (GEOSTOR leak) * Basis: * Method/Device: (CTD-RO)

Comment:

GPS data and date/time information were derived from shipboard WERUM-dship system (https://dship.geomar.de).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Schmidt, Mark
2	DATE/TIME	Date/Time		Schmidt, Mark		Geocode
3	Temperature, water	Temp	°C	Schmidt, Mark	CTD, Sea-Bird, SBE 9plus; measured with Temperature sensor, Sea-Bird, SBE 3plus
4	Conductivity	Cond	mS/cm	Schmidt, Mark	CTD, Sea-Bird, SBE 9plus; measured with Conductivity sensor, Sea-Bird, SBE 4
5	Oxygen	O2	µmol/l	Schmidt, Mark	CTD, Sea-Bird, SBE 9plus; measured with Dissolved oxygen sensor, Sea-Bird, SBE 43
6	Salinity	Sal		Schmidt, Mark	Calculated using SBE Data Processing Software Version 7.23.2
7	Sound velocity in water	SV	m/s	Schmidt, Mark	Calculated according to Chen Millero algorithm (Pike and Beiboer, 1993)
8	LATITUDE	Latitude		Schmidt, Mark		Geocode
9	LONGITUDE	Longitude		Schmidt, Mark		Geocode
10	DEPTH, water	Depth water	m	Schmidt, Mark	CTD, Sea-Bird, SBE 9plus; measured with Pressure sensor, Paroscientific, Digiquartz	Geocode

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:

32715 data points

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