Sea Surface Temperatures in the Eastern Equatorial Pacific and Surface Temperatures in the Eastern Cordillera of Colombia During El Niño: Implications for Pliocene Conditions

Pérez-Angel, Lina C.; Molnar, Peter

doi:10.1002/2017pa003182

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Sea Surface Temperatures in the Eastern Equatorial Pacific and Surface Temperatures in the Eastern Cordillera of Colombia During El Niño: Implications for Pliocene Conditions

2017
By Pérez-Angel, Lina C. ; Molnar, Peter
Source: Paleoceanography, 32(11), 1309-1314

[PDF-480.45 KB]

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Details:

Journal Title:

Paleoceanography
Personal Author:

Pérez-Angel, Lina C. ; Molnar, Peter

Pérez-Angel, Lina C. ; Molnar, Peter 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:

Regressions of surface temperatures in the Eastern Cordillera of Colombia with sea surface temperatures (SSTs) in the equatorial Paci ﬁc, and speci ﬁcally with Niño1+2 and Niño3 temperature anomalies, show that the Eastern Cordillera warms or cools by approximately half of the amplitude of thevariation of SSTs in the eastern tropical Paci ﬁc. Because Pliocene SSTs in the eastern tropical Paci ﬁc resemble those during major El Niño events, when SSTs warm by ~4°C, these regressions suggest that the Pliocene Eastern Cordillera was warmer by ~2°C at both high and low elevations. Such post-Pliocene cooling is smallerthan the ~9 –12°C inferred from fossil pollen assemblages, but comparable to recent estimates of Anderson et al. of 3 ± 1°C (1 σ) since ~8 Ma. This change in surface temperature could be explained by a change in regional climate associated with a different tropical Paci ﬁc SST distribution and therefore would require
Keywords:

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Oceanography Paleontology
Source:

Paleoceanography, 32(11), 1309-1314
DOI:

https://doi.org/10.1002/2017pa003182
ISSN:

0883-8305
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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urn:sha256:5c93d9f5df129d68c4d7031d2e1329ada54fbc822726aa1371fe0f6ccf5a5b83
Download URL:

https://repository.library.noaa.gov/view/noaa/54326/noaa_54326_DS1.pdf
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