Spiegel, Timo; Scholz, Florian; Schmidt, Mark; Perner, Mirjam: Water column, solid phase and porewater data in the Kiel Bight, SW Baltic Sea from 2016 to 2025 [dataset bundled publication]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.988013 (dataset in review)
Abstract:
During the research cruises BE03/2016 (08.03.2016), BE10/2016 (19.10.2016), BE10/2018 (23.10.2018), BE03/2019 (15.03.2019), L23-13 (13.09.2023 - 15.09.2023), Sagitta24-1 (16.09.2024), Sagitta24-2 (23.09.2024), Hai24VE2 (24.09.2024), L25-2b (09.02.2025 - 17.02.2025) and EMB374 (04.09.2025 - 13.09.2025), CTDs were deployed and sediment corers were retrieved at 99 stations in Kiel Bight in the southwestern Baltic Sea. Water column oxygen concentrations were determined using oxygen sensors attached to the CTD framework. At selected water depths, water samples were collected with Niskin bottles for the analysis of nitrate concentrations using an autoanalyzer. Short sediment cores (<50cm) were recovered using a Multicorer (MUC), Minicorer (MIC) or Rumohrlot (RL). Bottom waters were sampled from the supernatant water in the sediment cores. Solid phase sediment samples were analyzed for total organic carbon using an element analyzer. Porewater was extracted from the sediment cores using rhizones and analyzed for total alkalinity (titration), ammonium (photometer), sulfate (ion chromatography), hydrogen sulfide (photometer), dissolved iron (ICP-OES) and dissolved manganese (ICP-OES). The collected data will be used to (i) determine the spatial and temporal variability of hydrogen sulfide in bottom waters of the Kiel Bight, (ii) identify the controlling factors governing the accumulation of hydrogen sulfide at the seafloor, and (iii) establish an early warning system of sulfidic seafloor conditions for regional stakeholders in the Baltic Sea.
Keyword(s):
Supplement to:
Spiegel, Timo; Thiele, Matthias; Löptien, Ulrike; Dietze, Heiner; Friedland, René; Bange, Hermann W; Vahrenkamp, Sarima; Perner, Mirjam; Scholz, Florian (in review): Spatial and temporal patterns of bottom water euxinia in shallow areas of the SW Baltic Sea.
Project(s):
Funding:
Federal Ministry of Research, Technology and Space (BMFTR), grant/award no. 03F0953C: DAM mareXtreme - PrimePrevention, GEOMAR
Coverage:
Median Latitude: 54.527395 * Median Longitude: 10.137022 * South-bound Latitude: 54.432923 * West-bound Longitude: 9.861217 * North-bound Latitude: 54.700082 * East-bound Longitude: 10.313583
Date/Time Start: 2016-03-08T00:00:00 * Date/Time End: 2025-09-12T14:19:32
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Size:
4 datasets
Download Data (login required; moratorium until 2026-12-12)
Datasets listed in this bundled publication
- Spiegel, T; Scholz, F; Schmidt, M et al. (in review): Nitrate and hydrogen sulfide concentrations of the water column in the Kiel Bight, SW Baltic Sea from 2018 to 2025. https://doi.pangaea.de/10.1594/PANGAEA.988019
- Spiegel, T; Scholz, F; Schmidt, M et al. (in review): Dissolved oxygen concentrations of the water column in the Kiel Bight, SW Baltic Sea from 2018 to 2025. https://doi.pangaea.de/10.1594/PANGAEA.988018
- Spiegel, T; Scholz, F; Schmidt, M et al. (in review): Porewater ion concentrations and total alkalinity in the Kiel Bight, SW Baltic Sea from 2016 to 2025. https://doi.pangaea.de/10.1594/PANGAEA.988017
- Spiegel, T; Scholz, F; Schmidt, M et al. (in review): Total organic carbon in sediment cores from the Kiel Bight, SW Baltic Sea from 2016 to 2025. https://doi.pangaea.de/10.1594/PANGAEA.988016