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Historical winter sea-ice concentration data estimates utilising a diatom proxy for marine sediment core SO136-111

Created 13/03/2025

Updated 13/03/2025

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The purpose of this study was to re-evaluate the paleo sea-ice record for marine sediment core SO136-111. We applied a generalized additive model, and compared the estimates from GAM with those estimates derived from weighted averaging partial least squares, the Imbrie and Kipp Transfer function and the Modern Analogue Technique. We provide the first record of paleo winter sea-ice concentration data for core SO136-111, based on a diatom proxy. Core SO136-111 provides a record for winter sea-ice concentrations over the last 220 kyr BP. Gravity core SO136-111 (56°40'S, 160°14'E, water depth 3912 m) was retrieved from the Emerald Basin, in the East Indian sector of the Southern Ocean south of the modern Antarctic Polar Front. The core was retrieved in 1998 during the TASQWA cruise on board the FS SONNE.

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Title Historical winter sea-ice concentration data estimates utilising a diatom proxy for marine sediment core SO136-111
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/bb225304-3225-40dc-b7cb-8109cbbce6df
Contact Point
CSIRO Oceans & Atmosphere
alexanderjferry@gmail.com
Reference Period 16/10/1998 - 12/11/1998
Geospatial Coverage {"type": "Point", "coordinates": [160.23, -56.67000000000001]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Historical winter sea-ice concentration data estimates utilising a diatom proxy for marine sediment core SO136-111". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/historical-winter-sea-ice-concentration-data-estimates-utilising-a-diatom-proxy-for-marine-1111

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