By Chadwick et al. | September 9, 2022
Introduction
This compilation provides records of Antarctic sea-ice from the last glacial-interglacial (G-IG) cycle (12,000-130,000 years) to allow for the investigation of interactions between sea ice and climate under a large range of mean climate states. The database compiles published qualitative and quantitative records of G-IG sea-ice from twenty-four marine sediment cores. All records include the combined relative abundances of the two sea-ice related diatoms Fragilariopsis curta and F. cylindrus (FCC), a qualitative indicator of winter sea-ice presence. Fourteen of the core records also have quantitative reconstructions of winter sea-ice concentrations (WSIC) and/or sea-ice duration (SID). This work was done as part of the Past Global Changes - Cycles of Sea-Ice Dynamics in the Earth system (PAGES_C-SIDE) project.
Data
Data access and LiPDverse visualizations are available here.
Publication
A data descriptor for the compilation was published in Climate of the Past and is available here.
How to cite this compilation
Chadwick, M., Crosta, X., Esper, O., Thöle, L., and Kohfeld, K. E.: Compilation of Southern Ocean sea-ice records covering the last glacial-interglacial cycle (12–130 ka), Clim. Past, 18, 1815–1829, https://doi.org/10.5194/cp-18-1815-2022, 2022.
Long-term archival
The Southern Ocean Sea Ice data are archived at PANGAEA, and are available here.