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

Created 13/03/2025

Updated 13/03/2025

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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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Title Historical August Sea-Surface Temperature Estimates Utilising a Diatom Transfer Function with Core MD88-787
Language eng
Licence Not Specified
Landing Page https://devweb.dga.links.com.au/data/dataset/888151c0-d07b-41a9-b874-79233a44146c
Contact Point
CSIRO Oceans & Atmosphere
patrick.dedeckker@anu.edu.au
Reference Period 01/01/1988 - 01/01/1988
Geospatial Coverage
Map data © OpenStreetMap contributors
Data Portal Data.gov.au