Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates

Sonali Mcdermid, Mark A. Chandler, Jeff Jonas, Linda E. Sohl, Ken Mankoff, Harry Dowsett

    Research output: Contribution to journalArticle

    Abstract

    Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Niño-like conditions with impacts similar to those of the 1997/1998 El Niño event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical sea surface temperature (SST) anomalies in both modern and Pliocene simulations. Observed SSTs from the 1997/1998 El Niño event were used for the ,anomalies and incorporate Pacific wanning as well as a prominent Indian Ocean Dipole event. Both the permanent El Niño (also called El Padre) and Indian Ocean Dipole (IOD) conditions are necessary to reproduce temperature and precipitation patterns consistent with the global distribution of Pliocene proxy data. These patterns may result from the poleward propagation of planetary waves from the strong convection centers associated with the El Niño and IOD.

    Original languageEnglish (US)
    Article numberPA2221
    JournalPaleoceanography
    Volume24
    Issue number2
    DOIs
    StatePublished - Jun 2009

    Fingerprint

    Pliocene
    sea surface temperature
    climate
    planetary wave
    scale effect
    temperature anomaly
    general circulation model
    temperature
    convection
    anomaly
    simulation
    Indian Ocean Dipole
    distribution

    ASJC Scopus subject areas

    • Oceanography
    • Palaeontology

    Cite this

    Mcdermid, S., Chandler, M. A., Jonas, J., Sohl, L. E., Mankoff, K., & Dowsett, H. (2009). Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates. Paleoceanography, 24(2), [PA2221]. https://doi.org/10.1029/2008PA001682

    Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates. / Mcdermid, Sonali; Chandler, Mark A.; Jonas, Jeff; Sohl, Linda E.; Mankoff, Ken; Dowsett, Harry.

    In: Paleoceanography, Vol. 24, No. 2, PA2221, 06.2009.

    Research output: Contribution to journalArticle

    Mcdermid, S, Chandler, MA, Jonas, J, Sohl, LE, Mankoff, K & Dowsett, H 2009, 'Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates', Paleoceanography, vol. 24, no. 2, PA2221. https://doi.org/10.1029/2008PA001682
    Mcdermid, Sonali ; Chandler, Mark A. ; Jonas, Jeff ; Sohl, Linda E. ; Mankoff, Ken ; Dowsett, Harry. / Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates. In: Paleoceanography. 2009 ; Vol. 24, No. 2.
    @article{052db096ce5e483e9debccb2d3816e72,
    title = "Impact of a permanent El Ni{\~n} (El Padre) and Indian Ocean Dipole in warm Pliocene climates",
    abstract = "Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Ni{\~n}o-like conditions with impacts similar to those of the 1997/1998 El Ni{\~n}o event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical sea surface temperature (SST) anomalies in both modern and Pliocene simulations. Observed SSTs from the 1997/1998 El Ni{\~n}o event were used for the ,anomalies and incorporate Pacific wanning as well as a prominent Indian Ocean Dipole event. Both the permanent El Ni{\~n}o (also called El Padre) and Indian Ocean Dipole (IOD) conditions are necessary to reproduce temperature and precipitation patterns consistent with the global distribution of Pliocene proxy data. These patterns may result from the poleward propagation of planetary waves from the strong convection centers associated with the El Ni{\~n}o and IOD.",
    author = "Sonali Mcdermid and Chandler, {Mark A.} and Jeff Jonas and Sohl, {Linda E.} and Ken Mankoff and Harry Dowsett",
    year = "2009",
    month = "6",
    doi = "10.1029/2008PA001682",
    language = "English (US)",
    volume = "24",
    journal = "Paleoceanography and Paleoclimatology",
    issn = "2572-4517",
    publisher = "American Geophysical Union",
    number = "2",

    }

    TY - JOUR

    T1 - Impact of a permanent El Niñ (El Padre) and Indian Ocean Dipole in warm Pliocene climates

    AU - Mcdermid, Sonali

    AU - Chandler, Mark A.

    AU - Jonas, Jeff

    AU - Sohl, Linda E.

    AU - Mankoff, Ken

    AU - Dowsett, Harry

    PY - 2009/6

    Y1 - 2009/6

    N2 - Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Niño-like conditions with impacts similar to those of the 1997/1998 El Niño event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical sea surface temperature (SST) anomalies in both modern and Pliocene simulations. Observed SSTs from the 1997/1998 El Niño event were used for the ,anomalies and incorporate Pacific wanning as well as a prominent Indian Ocean Dipole event. Both the permanent El Niño (also called El Padre) and Indian Ocean Dipole (IOD) conditions are necessary to reproduce temperature and precipitation patterns consistent with the global distribution of Pliocene proxy data. These patterns may result from the poleward propagation of planetary waves from the strong convection centers associated with the El Niño and IOD.

    AB - Pliocene sea surface temperature data, as well as terrestrial precipitation and temperature proxies, indicate warmer than modern conditions in the eastern equatorial Pacific and imply permanent El Niño-like conditions with impacts similar to those of the 1997/1998 El Niño event. Here we use a general circulation model to examine the global-scale effects that result from imposing warm tropical sea surface temperature (SST) anomalies in both modern and Pliocene simulations. Observed SSTs from the 1997/1998 El Niño event were used for the ,anomalies and incorporate Pacific wanning as well as a prominent Indian Ocean Dipole event. Both the permanent El Niño (also called El Padre) and Indian Ocean Dipole (IOD) conditions are necessary to reproduce temperature and precipitation patterns consistent with the global distribution of Pliocene proxy data. These patterns may result from the poleward propagation of planetary waves from the strong convection centers associated with the El Niño and IOD.

    UR - http://www.scopus.com/inward/record.url?scp=70349679102&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=70349679102&partnerID=8YFLogxK

    U2 - 10.1029/2008PA001682

    DO - 10.1029/2008PA001682

    M3 - Article

    VL - 24

    JO - Paleoceanography and Paleoclimatology

    JF - Paleoceanography and Paleoclimatology

    SN - 2572-4517

    IS - 2

    M1 - PA2221

    ER -