5e654d94-d737-4d66-8c78-d7ddf66fca9d urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T08:40:42 creation ISO 19115 2016 Historical August Sea-Surface Temperature Estimates Utilising a Diatom Transfer Function with Core MD88-787 5e654d94-d737-4d66-8c78-d7ddf66fca9d 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. {"type": "Polygon", "coordinates": [[[145.0, -56.5], [145.5, -56.5], [145.5, -56.0], [145.0, -56.0], [145.0, -56.5]]]} 145.0 145.5 -56.5 -56.0 Biosphere | Microbiota | Diatoms Oceans | Ocean Temperature | Sea Surface Temperature Transfer function core_depth diatom_transfer_function_communality diatom_transfer_function_sea_surface_temperature extrapolated_age_scale latitude longitude taxonomic_group_count taxonomic_name App 3-2.pdf documentDigital Antarctic Diatom Database PDF App 6-10.pdf documentDigital Historical August sea-surface temperature estimates at location of core MD88-787 PDF App 6-6 787.pdf documentDigital Raw diatom counts through core MD88-787 PDF aodn:bluenet_datasets_southern_indian_ocean documentDigital Core Data – Southern and Indian Ocean WMS Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML Unnamed resource documentDigital License Graphic PNG Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML Unnamed resource documentDigital HTML