Journal article

The amplifying effect of Indonesian Throughflow heat transport on Late Pliocene Southern Hemisphere climate cooling

David De Vleeschouwer, Gerald Auer, Rebecca Smith, Kara Bogus, Beth Christensen, Jeroen Groeneveld, Benjamin Petrick, Jorijntje Henderiks, Isla S Castaneda, Evan O'Brien, Maret Ellinghausen, Stephen J Gallagher, Craig S Fulthorpe, Heiko Paelike

Earth and Planetary Science Letters | ELSEVIER SCIENCE BV | Published : 2018

Abstract

An unusually short glaciation interrupted the warm Pliocene around 3.3 Ma (Marine Isotope Stage (MIS) M2). Different hypotheses exist to explain why this glaciation event was so pronounced, and why the global climate system returned to warm Pliocene conditions relatively quickly afterwards. One of these proposed mechanisms is a reduced equator-to-pole heat transfer, in response to a tectonically reduced Indonesian Throughflow (ITF). The ITF is a critical part of the global thermohaline ocean circulation, transporting heat from the Indo-Pacific Warm Pool to the Indian Ocean. When ITF connectivity is reduced, the water and heat supply for the Leeuwin Current, flowing poleward along Australia's..

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University of Melbourne Researchers

Grants

Awarded by German Science Foundation (DFG)


Awarded by JSPS


Awarded by ARC Basins Genesis Hub


Awarded by ERC Consolidator grant "EARTHSEQUENCING"


Funding Acknowledgements

This research used samples and data provided by the International Ocean Discovery Program (IODP). The German Science Foundation (DFG) provided funding for this research through project VL96/1-1, project number 319497259. The Vocatio Foundation provided additional funding through a scholarship to DDV, laureate in the 2016 promotion. GA's contribution was funded by JSPS grant 17H07412. Funding was provided by the Australian IODP office and the ARC Basins Genesis Hub (IH130200012) to S.J.G. DDV is a post-doctoral researcher and HP is the principal investigator in ERC Consolidator grant "EARTHSEQUENCING" (grant agreement 617462). We thank two anonymous reviewers for their constructive feedback. All proxy data presented in this manuscript are available at https://doi.pangaea.de/10.1594/PANGAEA.892422.