Middle Pliocene sea surface temperature variability

Paleoceanography
By: , and 

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Abstract

Estimates of sea surface temperature (SST) based upon foraminifer, diatom, and ostracod assemblages from ocean cores reveal a warm phase of the Pliocene between about 3.3 and 3.0 Ma. Pollen records and plant megafossils, although not as well dated, show evidence for a warmer climate at about the same time. Increased greenhouse forcing and altered ocean heat transport are the leading candidates for the underlying cause of Pliocene global warmth. Despite being a period of global warmth, this interval encompasses considerable variability. Two new SST reconstructions are presented that are designed to provide a climatological error bar for warm peak phases of the Pliocene and to document the spatial distribution and magnitude of SST variability within the mid-Pliocene warm period. These data suggest long-term stability of low-latitude SST and document greater variability in regions of maximum warming. Copyright 2005 by the American Geophysical Union.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Middle Pliocene sea surface temperature variability
Series title Paleoceanography
DOI 10.1029/2005PA001133
Volume 20
Issue 2
Year Published 2005
Language English
Publisher Wiley
Description 8 p.
First page 1
Last page 8