The last deglaciation: timing the bipolar seesaw

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The last deglaciation : timing the bipolar seesaw. / Pedro, Joel Benjamin; Rasmussen, Sune Olander; van Ommen, Tas D.; Morgan, Vin I.; Chappellaz, Jerome; Moy, Andrew D.; Masson-Delmotte, Valerie; Delmotte, Marc.

I: Climate of the Past, Bind 7, 24.06.2011, s. 671.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

Harvard

Pedro, JB, Rasmussen, SO, van Ommen, TD, Morgan, VI, Chappellaz, J, Moy, AD, Masson-Delmotte, V & Delmotte, M 2011, 'The last deglaciation: timing the bipolar seesaw', Climate of the Past, bind 7, s. 671. https://doi.org/10.5194/cp-7-671-2011

APA

Pedro, J. B., Rasmussen, S. O., van Ommen, T. D., Morgan, V. I., Chappellaz, J., Moy, A. D., ... Delmotte, M. (2011). The last deglaciation: timing the bipolar seesaw. Climate of the Past, 7, 671. https://doi.org/10.5194/cp-7-671-2011

Vancouver

Pedro JB, Rasmussen SO, van Ommen TD, Morgan VI, Chappellaz J, Moy AD o.a. The last deglaciation: timing the bipolar seesaw. Climate of the Past. 2011 jun 24;7:671. https://doi.org/10.5194/cp-7-671-2011

Author

Pedro, Joel Benjamin ; Rasmussen, Sune Olander ; van Ommen, Tas D. ; Morgan, Vin I. ; Chappellaz, Jerome ; Moy, Andrew D. ; Masson-Delmotte, Valerie ; Delmotte, Marc. / The last deglaciation : timing the bipolar seesaw. I: Climate of the Past. 2011 ; Bind 7. s. 671.

Bibtex

@article{1265a2916d524e948870c0e2b6eef653,
title = "The last deglaciation: timing the bipolar seesaw",
abstract = "Precise information on the relative timing of north-south climate variations is a key to resolving questions concerning the mechanisms that force and couple climate changes between the hemispheres. We present a new composite record made from five well-resolved Antarctic ice core records that robustly represents the timing of regional Antarctic climate change during the last deglaciation.Using fast variations in global methane gas concentrations as time markers, the Antarctic composite is directly compared to Greenland ice core records, allowing a detailed mapping of the inter-hemispheric sequence of climate changes. Consistent with prior studies the synchronized records show that warming (and cooling) trends in Antarctica closely match cold (and warm) periods in Greenland on millennial timescales. For the first time, we also identify a sub-millennial component to the inter-hemispheric coupling. Within the Antarctic Cold Reversal the strongest Antarctic cooling occurs during the pronounced northern warmth of the B{\o}lling. Warming then resumes in Antarctica, potentially as early as the Intra-Aller{\o}d Cold Period, but with dating uncertainty that could place it as late as the onset of the Younger Dryas stadial. There is little-to-no time lag between climate transitions in Greenland and opposing changes in Antarctica.Our results lend support to fast acting inter-hemispheric coupling mechanisms, including recently proposed bipolar atmospheric teleconnections and/or rapid bipolar ocean teleconnections.",
author = "Pedro, {Joel Benjamin} and Rasmussen, {Sune Olander} and {van Ommen}, {Tas D.} and Morgan, {Vin I.} and Jerome Chappellaz and Moy, {Andrew D.} and Valerie Masson-Delmotte and Marc Delmotte",
year = "2011",
month = "6",
day = "24",
doi = "10.5194/cp-7-671-2011",
language = "English",
volume = "7",
pages = "671",
journal = "Climate of the Past",
issn = "1814-9324",
publisher = "Copernicus GmbH",

}

RIS

TY - JOUR

T1 - The last deglaciation

T2 - timing the bipolar seesaw

AU - Pedro, Joel Benjamin

AU - Rasmussen, Sune Olander

AU - van Ommen, Tas D.

AU - Morgan, Vin I.

AU - Chappellaz, Jerome

AU - Moy, Andrew D.

AU - Masson-Delmotte, Valerie

AU - Delmotte, Marc

PY - 2011/6/24

Y1 - 2011/6/24

N2 - Precise information on the relative timing of north-south climate variations is a key to resolving questions concerning the mechanisms that force and couple climate changes between the hemispheres. We present a new composite record made from five well-resolved Antarctic ice core records that robustly represents the timing of regional Antarctic climate change during the last deglaciation.Using fast variations in global methane gas concentrations as time markers, the Antarctic composite is directly compared to Greenland ice core records, allowing a detailed mapping of the inter-hemispheric sequence of climate changes. Consistent with prior studies the synchronized records show that warming (and cooling) trends in Antarctica closely match cold (and warm) periods in Greenland on millennial timescales. For the first time, we also identify a sub-millennial component to the inter-hemispheric coupling. Within the Antarctic Cold Reversal the strongest Antarctic cooling occurs during the pronounced northern warmth of the Bølling. Warming then resumes in Antarctica, potentially as early as the Intra-Allerød Cold Period, but with dating uncertainty that could place it as late as the onset of the Younger Dryas stadial. There is little-to-no time lag between climate transitions in Greenland and opposing changes in Antarctica.Our results lend support to fast acting inter-hemispheric coupling mechanisms, including recently proposed bipolar atmospheric teleconnections and/or rapid bipolar ocean teleconnections.

AB - Precise information on the relative timing of north-south climate variations is a key to resolving questions concerning the mechanisms that force and couple climate changes between the hemispheres. We present a new composite record made from five well-resolved Antarctic ice core records that robustly represents the timing of regional Antarctic climate change during the last deglaciation.Using fast variations in global methane gas concentrations as time markers, the Antarctic composite is directly compared to Greenland ice core records, allowing a detailed mapping of the inter-hemispheric sequence of climate changes. Consistent with prior studies the synchronized records show that warming (and cooling) trends in Antarctica closely match cold (and warm) periods in Greenland on millennial timescales. For the first time, we also identify a sub-millennial component to the inter-hemispheric coupling. Within the Antarctic Cold Reversal the strongest Antarctic cooling occurs during the pronounced northern warmth of the Bølling. Warming then resumes in Antarctica, potentially as early as the Intra-Allerød Cold Period, but with dating uncertainty that could place it as late as the onset of the Younger Dryas stadial. There is little-to-no time lag between climate transitions in Greenland and opposing changes in Antarctica.Our results lend support to fast acting inter-hemispheric coupling mechanisms, including recently proposed bipolar atmospheric teleconnections and/or rapid bipolar ocean teleconnections.

U2 - 10.5194/cp-7-671-2011

DO - 10.5194/cp-7-671-2011

M3 - Journal article

VL - 7

SP - 671

JO - Climate of the Past

JF - Climate of the Past

SN - 1814-9324

ER -

ID: 34467108