Geothermal heat flow data collected during PS134

DOI

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.

Identifier
DOI https://doi.org/10.1594/PANGAEA.984026
Related Identifier IsSupplementTo https://doi.org/10.1029/2024JC022034
Related Identifier References https://doi.org/10.57738/BzPM_0777_2023
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.984026
Provenance
Creator Brand, Caroline ORCID logo; Kaul, Norbert ORCID logo; Lösing, Mareen ORCID logo; Gohl, Karsten ORCID logo
Publisher PANGAEA
Publication Year 2025
Funding Reference Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.13039/501100003207 Crossref Funder ID AWI_PS134_02 Marine Geophysics - Geothermal Heat Flow
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (-92.693W, -73.637S, -72.678E, 73.521N)
Temporal Coverage Begin 2023-01-21T12:29:36Z
Temporal Coverage End 2023-02-26T16:17:57Z