Inter-hemispheric asymmetry in the early Pleistocene Pacific warm pool

The position of the southern boundary of the Pacific warm pool is shown to have been stable since the early Pleistocene, based upon a planktic foraminiferal Mg/Ca-derived reconstruction of subtropical sea surface temperature in the Coral Sea. This contrasts with previous reconstructions showing warm...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Russon, T., Elliot, M., Sadekov, A., Cabioch, Guy, Correge, T., De Deckker, Patrick
Format: Article in Journal/Newspaper
Language:unknown
Published: American Geophysical Union
Subjects:
Keywords: Coral sea
Hadley cells
Pacific warm pool
Pleistocene
Sea surface temperatures
Warm pools
Atmospheric temperature
Surface reconstruction
Lakes
asymmetry
paleoceanography
planktonic foraminifera
reconstruction
sea surface temperatu
Pacific
Planktonic foraminifera
Online Access:http://hdl.handle.net/1885/53847
https://doi.org/10.1029/2010GL043191
https://openresearch-repository.anu.edu.au/bitstream/1885/53847/5/Inter-hemispheric_asymmetry.pdf.jpg
https://openresearch-repository.anu.edu.au/bitstream/1885/53847/7/01_Russon_Inter-hemispheric_asymmetry_in_2010.pdf.jpg
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Summary:The position of the southern boundary of the Pacific warm pool is shown to have been stable since the early Pleistocene, based upon a planktic foraminiferal Mg/Ca-derived reconstruction of subtropical sea surface temperature in the Coral Sea. This contrasts with previous reconstructions showing warm pool contraction from the north and east and means that the early Pleistocene warm pool was more hemispherically asymmetric than its present configuration. The latter was not established until ∼1Ma, supporting a strengthening of the northern Hadley Cell, which was not replicated in its southern counterpart, prior to the Mid-Pleistocene Transition.

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