A muted El Niño-like condition during late MIS 3

Kweku A. Yamoah; Akkaneewut Chabangborn; Sakonvan Chawchai; Sherilyn Fritz; Ludvig Löwemark; Stefanie Kaboth-Bahr; Paula J. Reimer; Rienk H. Smittenberg; Barbara Wohlfarth

doi:10.1016/j.quascirev.2020.106782

A muted El Niño-like condition during late MIS 3

Kweku A. Yamoah^*, Akkaneewut Chabangborn, Sakonvan Chawchai, Sherilyn Fritz, Ludvig Löwemark, Stefanie Kaboth-Bahr, Paula J. Reimer, Rienk H. Smittenberg, Barbara Wohlfarth

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

The evolutionary dynamics of El Niño Southern Oscillation (ENSO) over the last glacial period remains understudied, despite its potential in providing a “cold case” for climate sensitivity studies. Here, we investigate SE Asian-Pacific paleoclimate records to decipher the dominant underlying mechanism that governed tropical Asian-Pacific hydrology during MIS 3. Our results suggest that the glacial emergence of the Sunda Shelf likely altered the atmospheric circulation pattern in Southeast (SE) Asia and led to the realignment of rainfall patterns between Thailand and Indonesia during the last glacial period. We also propose that the long-term hydrological regime change in the tropical Asian-Pacific region during MIS 3 was mainly influenced by an El Niño-like mechanism. An intense El Niño-like condition led to strong aridity in SE Asia during mid MIS 3. By late MIS 3, an enhanced seasonality dampened the intensity of the El Niño-like conditions, thus, leading to muted aridity in SE Asia. The alternating warm and wet summer months and droughts during winter favoured the proliferation of C4 plant types in Northern Thailand from mid MIS 3 to late MIS 3.

Original language	English
Article number	106782
Number of pages	13
Journal	Quaternary Science Reviews
Volume	254
Early online date	15 Jan 2021
DOIs	https://doi.org/10.1016/j.quascirev.2020.106782
Publication status	Published - 15 Feb 2021

Bibliographical note

Funding Information:
We acknowledge the support from the Swedish Research Council (VR) research grants 621-2008-2855 , 621-2011-4684 and 348-2008-6071 to Barbara Wohlfarth, and 621-2011-4916 to Rienk Smittenberg. The Delta facility, funded by the Faculty of Science, Stockholm University , provided support for the isotope analyses. LL acknowledges support from “The Featured Areas Research Center Program” within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan, and the Ministry of Science and Technology of Taiwan (MOST) grant 106-2116-M-002 -021 to Ludvig Löwermark. We acknowledge Professor Cathy Whitlock for providing training and facility for charcoal analysis during the PhD study of SC. We thank Wichuratree Klubseang, Suda Inthongkaew and Lek, for help during field work. James Bendle and the organic geochemistry group in University of Birmingham and all those who helped in diverse ways to make this project a success are duly acknowledged.

Publisher Copyright:
© 2021 Elsevier Ltd

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

El Niño
Marine isotope Stage 3
Paleoclimate
SE Asia and Sunda shelf

ASJC Scopus subject areas

Global and Planetary Change
Ecology, Evolution, Behavior and Systematics
Archaeology
Archaeology
Geology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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Muted El-Nino-like condition during late-MIS-3
Copyright 2021 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
Accepted author manuscript, 916 KBLicence: CC BY-NC-ND

Cite this

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title = "A muted El Ni{\~n}o-like condition during late MIS 3",

abstract = "The evolutionary dynamics of El Ni{\~n}o Southern Oscillation (ENSO) over the last glacial period remains understudied, despite its potential in providing a “cold case” for climate sensitivity studies. Here, we investigate SE Asian-Pacific paleoclimate records to decipher the dominant underlying mechanism that governed tropical Asian-Pacific hydrology during MIS 3. Our results suggest that the glacial emergence of the Sunda Shelf likely altered the atmospheric circulation pattern in Southeast (SE) Asia and led to the realignment of rainfall patterns between Thailand and Indonesia during the last glacial period. We also propose that the long-term hydrological regime change in the tropical Asian-Pacific region during MIS 3 was mainly influenced by an El Ni{\~n}o-like mechanism. An intense El Ni{\~n}o-like condition led to strong aridity in SE Asia during mid MIS 3. By late MIS 3, an enhanced seasonality dampened the intensity of the El Ni{\~n}o-like conditions, thus, leading to muted aridity in SE Asia. The alternating warm and wet summer months and droughts during winter favoured the proliferation of C4 plant types in Northern Thailand from mid MIS 3 to late MIS 3.",

keywords = "El Ni{\~n}o, Marine isotope Stage 3, Paleoclimate, SE Asia and Sunda shelf",

author = "Yamoah, {Kweku A.} and Akkaneewut Chabangborn and Sakonvan Chawchai and Sherilyn Fritz and Ludvig L{\"o}wemark and Stefanie Kaboth-Bahr and Reimer, {Paula J.} and Smittenberg, {Rienk H.} and Barbara Wohlfarth",

note = "Funding Information: We acknowledge the support from the Swedish Research Council (VR) research grants 621-2008-2855 , 621-2011-4684 and 348-2008-6071 to Barbara Wohlfarth, and 621-2011-4916 to Rienk Smittenberg. The Delta facility, funded by the Faculty of Science, Stockholm University , provided support for the isotope analyses. LL acknowledges support from “The Featured Areas Research Center Program” within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan, and the Ministry of Science and Technology of Taiwan (MOST) grant 106-2116-M-002 -021 to Ludvig L{\"o}wermark. We acknowledge Professor Cathy Whitlock for providing training and facility for charcoal analysis during the PhD study of SC. We thank Wichuratree Klubseang, Suda Inthongkaew and Lek, for help during field work. James Bendle and the organic geochemistry group in University of Birmingham and all those who helped in diverse ways to make this project a success are duly acknowledged. Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.quascirev.2020.106782",

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AU - Yamoah, Kweku A.

AU - Chabangborn, Akkaneewut

AU - Chawchai, Sakonvan

AU - Fritz, Sherilyn

AU - Löwemark, Ludvig

AU - Kaboth-Bahr, Stefanie

AU - Reimer, Paula J.

AU - Smittenberg, Rienk H.

AU - Wohlfarth, Barbara

N1 - Funding Information: We acknowledge the support from the Swedish Research Council (VR) research grants 621-2008-2855 , 621-2011-4684 and 348-2008-6071 to Barbara Wohlfarth, and 621-2011-4916 to Rienk Smittenberg. The Delta facility, funded by the Faculty of Science, Stockholm University , provided support for the isotope analyses. LL acknowledges support from “The Featured Areas Research Center Program” within the framework of the Higher Education Sprout Project by the Ministry of Education in Taiwan, and the Ministry of Science and Technology of Taiwan (MOST) grant 106-2116-M-002 -021 to Ludvig Löwermark. We acknowledge Professor Cathy Whitlock for providing training and facility for charcoal analysis during the PhD study of SC. We thank Wichuratree Klubseang, Suda Inthongkaew and Lek, for help during field work. James Bendle and the organic geochemistry group in University of Birmingham and all those who helped in diverse ways to make this project a success are duly acknowledged. Publisher Copyright: © 2021 Elsevier Ltd Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/2/15

Y1 - 2021/2/15

N2 - The evolutionary dynamics of El Niño Southern Oscillation (ENSO) over the last glacial period remains understudied, despite its potential in providing a “cold case” for climate sensitivity studies. Here, we investigate SE Asian-Pacific paleoclimate records to decipher the dominant underlying mechanism that governed tropical Asian-Pacific hydrology during MIS 3. Our results suggest that the glacial emergence of the Sunda Shelf likely altered the atmospheric circulation pattern in Southeast (SE) Asia and led to the realignment of rainfall patterns between Thailand and Indonesia during the last glacial period. We also propose that the long-term hydrological regime change in the tropical Asian-Pacific region during MIS 3 was mainly influenced by an El Niño-like mechanism. An intense El Niño-like condition led to strong aridity in SE Asia during mid MIS 3. By late MIS 3, an enhanced seasonality dampened the intensity of the El Niño-like conditions, thus, leading to muted aridity in SE Asia. The alternating warm and wet summer months and droughts during winter favoured the proliferation of C4 plant types in Northern Thailand from mid MIS 3 to late MIS 3.

AB - The evolutionary dynamics of El Niño Southern Oscillation (ENSO) over the last glacial period remains understudied, despite its potential in providing a “cold case” for climate sensitivity studies. Here, we investigate SE Asian-Pacific paleoclimate records to decipher the dominant underlying mechanism that governed tropical Asian-Pacific hydrology during MIS 3. Our results suggest that the glacial emergence of the Sunda Shelf likely altered the atmospheric circulation pattern in Southeast (SE) Asia and led to the realignment of rainfall patterns between Thailand and Indonesia during the last glacial period. We also propose that the long-term hydrological regime change in the tropical Asian-Pacific region during MIS 3 was mainly influenced by an El Niño-like mechanism. An intense El Niño-like condition led to strong aridity in SE Asia during mid MIS 3. By late MIS 3, an enhanced seasonality dampened the intensity of the El Niño-like conditions, thus, leading to muted aridity in SE Asia. The alternating warm and wet summer months and droughts during winter favoured the proliferation of C4 plant types in Northern Thailand from mid MIS 3 to late MIS 3.

KW - El Niño

KW - Marine isotope Stage 3

KW - Paleoclimate

KW - SE Asia and Sunda shelf

U2 - 10.1016/j.quascirev.2020.106782

DO - 10.1016/j.quascirev.2020.106782

M3 - Article

AN - SCOPUS:85099365055

SN - 0277-3791

VL - 254

JO - Quaternary Science Reviews

JF - Quaternary Science Reviews

M1 - 106782

ER -

A muted El Niño-like condition during late MIS 3

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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