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Historical August Sea-Surface Temperature Estimates Utilising a Diatom Transfer Function with Core MD88-787

Created 25/06/2017

Updated 11/08/2023

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The purpose of this study was to estimate past sea-surface temperature in the Southeast Indian Ocean. The accumulation of diatom microplankton assemblages in sediments being the proxy for these records of climatic change.

A transfer function is a mathematical method that allows quantitative estimations of environmental parameters from past biogenic sedimentation. In this study, a diatom transfer function was established to relate biological species to selected environmental parameter of the ocean (sea-surface temp). These equations were then employed on observed fossil species from core samples to provide quantitative estimates of sea-surface temperature.

Estimates of sea-surface temperature (SST) are given here based on the assemblages of diatoms found in core MD88-787. The information provided gives the extrapolated age-scale through the core, and an estimate of August SST based on a diatom transfer function - DTF 109/24/6.

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Additional Info

Field Value
Title Historical August Sea-Surface Temperature Estimates Utilising a Diatom Transfer Function with Core MD88-787
Language English
Licence Creative Commons Attribution 2.5 Australia
Landing Page https://data.gov.au/data/en/dataset/6805a7b3-3fc6-4c7f-b0e5-4bc0b5c339c1
Contact Point
Department of Biological Sciences, Macquarie University
leanne.armand@mq.edu.au
Reference Period 25/06/2017
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    [
      [
        145.0,
        -56.5
      ],
      [
        145.5,
        -56.5
      ],
      [
        145.5,
        -56.0
      ],
      [
        145.0,
        -56.0
      ],
      [
        145.0,
        -56.5
      ]
    ]
  ],
  "type": "Polygon"
}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Historical August Sea-Surface Temperature Estimates Utilising a Diatom Transfer Function with Core MD88-787". Please visit the source to access the original metadata of the dataset:
https://data.gov.au/data/dataset/historical-august-sea-surface-temperature-estimates-utilising-a-diatom-transfer-function-wi-787