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Ocean temperatures over time estimated from planktonic foraminifera assemblages in core MD032607 located off South Australia. Estimates are provided for the sea-surface, 50m, 100m, and 150m

Created 23/06/2025

Updated 23/06/2025

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In recent years the term 'enhanced greenhouse effect' has become well known in modern society and yet aspects of this possible 'future climate' are poorly understood. The characteristics of the geological record provide a basis to understand this possible future climate through the examination of alternating glacial (cold) and interglacial (warm) stages. Understanding the variability of sea-surface temperature and biological processes in the water column provides insight into general circulation of present and paleo-ocean currents. From core MD032607 the annual mean SST (Tmean) indicates a temperature range of 9oC±0.84oC between Marine Isotope Stage (MIS) 6 to MIS 5, representing the largest sea surface temperature (SST) transition from a glacial to interglacial. The results also suggest that there is more stratification in the water column during interglacial periods as opposed to glacials. Conversely, temperatures gradients are reduced during the Last Glacial Maximum (LGM) and MIS 6 suggesting a well mixed homogenised mixed layer.

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Title Ocean temperatures over time estimated from planktonic foraminifera assemblages in core MD032607 located off South Australia. Estimates are provided for the sea-surface, 50m, 100m, and 150m
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/7429bc8b-4c25-4cf6-8714-be4de471cee7
Contact Point
Australian Ocean Data Network
michelle.spooner8@gmail.com
Reference Period 01/01/2003 - 01/01/2003
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        137.0,
        -40.0
      ],
      [
        137.5,
        -40.0
      ],
      [
        137.5,
        -39.5
      ],
      [
        137.0,
        -39.5
      ],
      [
        137.0,
        -40.0
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Ocean temperatures over time estimated from planktonic foraminifera assemblages in core MD032607 located off South Australia. Estimates are provided for the sea-surface, 50m, 100m, and 150m". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/ocean-temperatures-over-time-estimated-from-planktonic-foraminifera-assemblages-in-core-md032601