Abrupt change in tropical Pacific climate mean state during the Little Ice Age

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Standard

Abrupt change in tropical Pacific climate mean state during the Little Ice Age. / Prohaska, Ana; Seddon, Alistair W. R.; Meese, Bernd; Willis, Katherine J.; Chiang, John C. H.; Sachse, Dirk.

In: Communications Earth and Environment, Vol. 4, 227, 2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Prohaska, A, Seddon, AWR, Meese, B, Willis, KJ, Chiang, JCH & Sachse, D 2023, 'Abrupt change in tropical Pacific climate mean state during the Little Ice Age', Communications Earth and Environment, vol. 4, 227. https://doi.org/10.1038/s43247-023-00882-7

APA

Prohaska, A., Seddon, A. W. R., Meese, B., Willis, K. J., Chiang, J. C. H., & Sachse, D. (2023). Abrupt change in tropical Pacific climate mean state during the Little Ice Age. Communications Earth and Environment, 4, [227]. https://doi.org/10.1038/s43247-023-00882-7

Vancouver

Prohaska A, Seddon AWR, Meese B, Willis KJ, Chiang JCH, Sachse D. Abrupt change in tropical Pacific climate mean state during the Little Ice Age. Communications Earth and Environment. 2023;4. 227. https://doi.org/10.1038/s43247-023-00882-7

Author

Prohaska, Ana ; Seddon, Alistair W. R. ; Meese, Bernd ; Willis, Katherine J. ; Chiang, John C. H. ; Sachse, Dirk. / Abrupt change in tropical Pacific climate mean state during the Little Ice Age. In: Communications Earth and Environment. 2023 ; Vol. 4.

Bibtex

@article{bf57e9f4401f4e22b120d18581713f03,
title = "Abrupt change in tropical Pacific climate mean state during the Little Ice Age",
abstract = "The mean state of the tropical Pacific ocean-atmosphere climate, in particular its east-west asymmetry, has profound consequences for regional climates and for the El Ni{\~n}o/Southern Oscillation variability. Here we present a new high-resolution paleohydrological record using the stable-hydrogen-isotopic composition of terrestrial-lipid biomarkers (δDwax) from a 1,400-year-old lake sedimentary sequence from northern Philippines. Results show a dramatic and abrupt increase in δDwax values around 1630 AD with sustained high values until around 1900 AD. We interpret this change as a shift to significantly drier conditions in the western tropical Pacific during the second half of the Little Ice Age as a result of a change in tropical Pacific mean state tied to zonal sea surface temperature (SST) gradients. Our findings highlight the prominent role of abrupt shifts in zonal SST gradients on multidecadal to multicentennial timescales in shaping the tropical Pacific hydrology of the last millennium, and demonstrate that a marked transition in the tropical Pacific mean state can occur within a period of a few decades.",
author = "Ana Prohaska and Seddon, {Alistair W. R.} and Bernd Meese and Willis, {Katherine J.} and Chiang, {John C. H.} and Dirk Sachse",
note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",
year = "2023",
doi = "10.1038/s43247-023-00882-7",
language = "English",
volume = "4",
journal = "Communications Earth and Environment",
issn = "2662-4435",
publisher = "Nature Research",

}

RIS

TY - JOUR

T1 - Abrupt change in tropical Pacific climate mean state during the Little Ice Age

AU - Prohaska, Ana

AU - Seddon, Alistair W. R.

AU - Meese, Bernd

AU - Willis, Katherine J.

AU - Chiang, John C. H.

AU - Sachse, Dirk

N1 - Publisher Copyright: © 2023, The Author(s).

PY - 2023

Y1 - 2023

N2 - The mean state of the tropical Pacific ocean-atmosphere climate, in particular its east-west asymmetry, has profound consequences for regional climates and for the El Niño/Southern Oscillation variability. Here we present a new high-resolution paleohydrological record using the stable-hydrogen-isotopic composition of terrestrial-lipid biomarkers (δDwax) from a 1,400-year-old lake sedimentary sequence from northern Philippines. Results show a dramatic and abrupt increase in δDwax values around 1630 AD with sustained high values until around 1900 AD. We interpret this change as a shift to significantly drier conditions in the western tropical Pacific during the second half of the Little Ice Age as a result of a change in tropical Pacific mean state tied to zonal sea surface temperature (SST) gradients. Our findings highlight the prominent role of abrupt shifts in zonal SST gradients on multidecadal to multicentennial timescales in shaping the tropical Pacific hydrology of the last millennium, and demonstrate that a marked transition in the tropical Pacific mean state can occur within a period of a few decades.

AB - The mean state of the tropical Pacific ocean-atmosphere climate, in particular its east-west asymmetry, has profound consequences for regional climates and for the El Niño/Southern Oscillation variability. Here we present a new high-resolution paleohydrological record using the stable-hydrogen-isotopic composition of terrestrial-lipid biomarkers (δDwax) from a 1,400-year-old lake sedimentary sequence from northern Philippines. Results show a dramatic and abrupt increase in δDwax values around 1630 AD with sustained high values until around 1900 AD. We interpret this change as a shift to significantly drier conditions in the western tropical Pacific during the second half of the Little Ice Age as a result of a change in tropical Pacific mean state tied to zonal sea surface temperature (SST) gradients. Our findings highlight the prominent role of abrupt shifts in zonal SST gradients on multidecadal to multicentennial timescales in shaping the tropical Pacific hydrology of the last millennium, and demonstrate that a marked transition in the tropical Pacific mean state can occur within a period of a few decades.

U2 - 10.1038/s43247-023-00882-7

DO - 10.1038/s43247-023-00882-7

M3 - Journal article

AN - SCOPUS:85163825820

VL - 4

JO - Communications Earth and Environment

JF - Communications Earth and Environment

SN - 2662-4435

M1 - 227

ER -

ID: 371558195