Multiproxy Reconstruction of Pliocene North Atlantic Sea Surface Temperatures and Implications for Rainfall in North Africa

Wycech, J. B.; Rajagopalan, B.; Molnar, P. H.; Gill, E.; Marchitto, T. M.

doi:10.1029/2022pa004424

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Multiproxy Reconstruction of Pliocene North Atlantic Sea Surface Temperatures and Implications for Rainfall in North Africa

2022
By Wycech, J. B. ; Rajagopalan, B. ; Molnar, P. H. ; ...
Source: Paleoceanography and Paleoclimatology, 37(12)

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Journal Title:

Paleoceanography and Paleoclimatology
Personal Author:

Wycech, J. B. ; Rajagopalan, B. ; Molnar, P. H. ; Gill, E. ; Marchitto, T. M.

Wycech, J. B. ; Rajagopalan, B. ; Molnar, P. H. ; Gill, E. ; Marchitto, T. M. Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; NCEI (National Centers for Environmental Information)

NESDIS (National Environmental Satellite, Data, and Information Service) ; CIRES (Cooperative Institute for Research in Environmental Sciences) ; NCEI (National Centers for Environmental Information) Less -
Description:

Wetter conditions in the African Sahel during the Pliocene (5.3–2.6 Ma) likely played an important role in hominid evolution and may be explained by warm North Atlantic sea-surface temperatures (SSTs), similar to the modern warm phase of the Atlantic multidecadal oscillation (AMO). We reconstruct Pliocene North Atlantic (2°S to 60°N) SSTs through a multiproxy reduced-dimension methodology that combines two new foraminiferal ( Trilobatus sacculifer ) Mg/Ca-based SST records from Ocean Drilling Program sites in the northwestern Atlantic (Site 997) and Gulf of Mexico (Site 625) with previously published multi-proxy SST records from seven additional Atlantic sites. Our Pliocene reconstructions indicate that the
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Atmospheric Science Oceanography Paleontology
Source:

Paleoceanography and Paleoclimatology, 37(12)
DOI:

https://doi.org/10.1029/2022pa004424
ISSN:

2572-4517;2572-4525;
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PDF
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:21aa52ceb190a681ffae749592b011691d05e93571ddb874cdee45614cf7e2d0
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https://repository.library.noaa.gov/view/noaa/55100/noaa_55100_DS1.pdf
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