Brand, Caroline; Kaul, Norbert; Lösing, Mareen; Gohl, Karsten (2025): Geothermal heat flow data collected during PS134 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.984026
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2025-08-05 • DOI registered: 2025-08-06
Abstract:
The geothermal heat flow in the Bellingshausen Sea, West Antarctica, is not well constrained, but a crucial parameter, as it can influence sliding conditions at the ice-bed contact and englacial temperatures and consequently, the ice-sheet flow dynamics. Furthermore, the magnitude and spatial variability of geothermal heat flow can provide insights into regional tectonic and magmatic development. However, bottom water variations of the modified Circumpolar Deep Water are presumably affecting the upper meters of the sub-seafloor sediment temperatures and thus, the measurement-derived heat flow estimates. For these purposes, we conducted heat flow measurements during cruise PS134 in the Bellingshausen Sea at stations located in Ronne Entrance, Eltanin Bay, and in front of the Abbot Ice Shelf. The dataset comprises in situ sediment temperatures measured using a heat flow probe with six Miniaturized Temperature Data-Loggers. Thermal conductivities were measured on split sediment cores using the KD2 Thermal Property Analyzer. During the deployment of the heat flow probe, water column temperatures were recorded.
Supplement to:
Brand, Caroline; Kaul, Norbert; Gohl, Karsten (2025): Influence of Transient Bottom Water Temperature Variations on Geothermal Heat Flow Measurements From the Bellingshausen Sea, West Antarctica, and the Baltic Sea. Journal of Geophysical Research: Oceans, 130(8), e2024JC022034, https://doi.org/10.1029/2024JC022034
Related to:
Gohl, Karsten (2023): The Expedition PS134 of the Research Vessel POLARSTERN to the Bellinghausen Sea in 2022/2023. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 777, 181 pp, https://doi.org/10.57738/BzPM_0777_2023
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS134_02: Marine Geophysics - Geothermal Heat Flow
Coverage:
Median Latitude: -62.030134 * Median Longitude: -79.784335 * South-bound Latitude: -73.636780 * West-bound Longitude: -92.693230 * North-bound Latitude: 73.520650 * East-bound Longitude: -72.677540
Date/Time Start: 2023-01-21T12:29:36 * Date/Time End: 2023-02-26T16:17:57
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets
Download Data
Datasets listed in this bundled publication
- Brand, C; Kaul, N; Lösing, M et al. (2025): In situ sediment temperature measurements for geothermal heat flow estimates, cruise PS134. https://doi.org/10.1594/PANGAEA.984027
- Brand, C; Kaul, N; Lösing, M et al. (2025): Thermal conductivities for geothermal heat flow estimates, cruise PS134. https://doi.org/10.1594/PANGAEA.984029
- Brand, C; Kaul, N; Lösing, M et al. (2025): Water column temperatures recorded during heat flow probe deployment, cruise PS134. https://doi.org/10.1594/PANGAEA.984030