Clark, NA, Williams, M, Hill, DJ et al. (5 more authors) (2013) Fossil proxies of near-shore sea surface temperatures and seasonality from the late Neogene Antarctic shelf. Naturwissenschaften, 100 (8). 699 - 722. ISSN 0028-1042
Abstract
We evaluate the available palaeontological and geochemical proxy data from bivalves, bryozoans, silicoflagellates, diatoms and cetaceans for sea surface temperature (SST) regimes around the nearshore Antarctic coast during the late Neogene. These fossils can be found in a number of shallow marine sedimentary settings from three regions of the Antarctic continent, the northern Antarctic Peninsula, the Prydz Bay region and the western Ross Sea. Many of the proxies suggest maximum spring-summer SSTs that are warmer than present by up to 5 C, which would result in reduced seasonal sea ice. The evidence suggests that the summers on the Antarctic shelf during the late Neogene experienced most of the warming, while winter SSTs were little changed from present. Feedbacks from changes in summer sea ice cover may have driven much of the late Neogene ocean warming seen in stratigraphic records. Synthesized late Neogene and earliest Quaternary Antarctic shelf proxy data are compared to the multi-model SST estimates of the Pliocene Model Intercomparison Project (PlioMIP) Experiment 2. Despite the fragmentary geographical and temporal context for the SST data, comparisons between the SST warming in each of the three regions represented in the marine palaeontological record of the Antarctic shelf and the PlioMIP climate simulations show a good concordance.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2013, Springer-Verlag Berlin Heidelberg. This is an author produced version of a paper published in Naturwissenschaften. Uploaded in accordance with the publisher's self-archiving policy. The final publication is available at Springer via http://dx.doi.org/10.1007/s00114-013-1075-9 |
Keywords: | Antarctica; Climate models; Palaeoclimate; Pliocene; Proxy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 22 Sep 2014 12:50 |
Last Modified: | 17 Jan 2018 10:05 |
Published Version: | http://dx.doi.org/10.1007/s00114-013-1075-9 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/s00114-013-1075-9 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80195 |