Abrupt climate change around 22 ka on the Siple Coast of Antarctica

K. C. Taylor; J. W.C. White; J. P. Severinghaus; E. J. Brook; P. A. Mayewski; R. B. Alley; E. J. Steig; M. K. Spencer; E. Meyerson; D. A. Meese; G. W. Lamorey; A. Grachev; A. J. Gow; B. A. Barnett

doi:10.1016/j.quascirev.2003.09.004

Abrupt climate change around 22 ka on the Siple Coast of Antarctica

K. C. Taylor
, J. W.C. White
, J. P. Severinghaus
, E. J. Brook
, P. A. Mayewski
, R. B. Alley
, E. J. Steig
, M. K. Spencer
, E. Meyerson
, D. A. Meese
, G. W. Lamorey
, A. Grachev
, A. J. Gow
, B. A. Barnett

Geosciences

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

45 Scopus citations

Abstract

A new ice core from Siple Dome, Antarctica suggests the surface temperature increased by ∼6°C in just several decades at approximately 22 ka BP. This abrupt change did not occur 500km away in the Byrd ice core, or in climate proxy records in the Siple Dome core indicative of the mid-latitude Pacific. This demonstrates there was significant spatial heterogeneity in the response of the Antarctic climate during the last deglaciation and draws attention to unexplained mechanisms of abrupt climate change in Antarctica.

Original language	English (US)
Pages (from-to)	7-15
Number of pages	9
Journal	Quaternary Science Reviews
Volume	23
Issue number	1-2
DOIs	https://doi.org/10.1016/j.quascirev.2003.09.004
State	Published - Jan 2004

UN SDGs

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

SDG 13 Climate Action

All Science Journal Classification (ASJC) codes

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

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10.1016/j.quascirev.2003.09.004

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Taylor, K. C., White, J. W. C., Severinghaus, J. P., Brook, E. J., Mayewski, P. A., Alley, R. B., Steig, E. J., Spencer, M. K., Meyerson, E., Meese, D. A., Lamorey, G. W., Grachev, A., Gow, A. J., & Barnett, B. A. (2004). Abrupt climate change around 22 ka on the Siple Coast of Antarctica. Quaternary Science Reviews, 23(1-2), 7-15. https://doi.org/10.1016/j.quascirev.2003.09.004

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title = "Abrupt climate change around 22 ka on the Siple Coast of Antarctica",

abstract = "A new ice core from Siple Dome, Antarctica suggests the surface temperature increased by ∼6°C in just several decades at approximately 22 ka BP. This abrupt change did not occur 500km away in the Byrd ice core, or in climate proxy records in the Siple Dome core indicative of the mid-latitude Pacific. This demonstrates there was significant spatial heterogeneity in the response of the Antarctic climate during the last deglaciation and draws attention to unexplained mechanisms of abrupt climate change in Antarctica.",

author = "Taylor, \{K. C.\} and White, \{J. W.C.\} and Severinghaus, \{J. P.\} and Brook, \{E. J.\} and Mayewski, \{P. A.\} and Alley, \{R. B.\} and Steig, \{E. J.\} and Spencer, \{M. K.\} and E. Meyerson and Meese, \{D. A.\} and Lamorey, \{G. W.\} and A. Grachev and Gow, \{A. J.\} and Barnett, \{B. A.\}",

note = "Funding Information: This work was funded by multiple grants from the Glaciology Program of the Office of Polar Programs of the National Science Foundation. Special thanks goes to the 109th Air National Guard for air transport, to Mark Wumkes of Glacier Data for drilling assistance and the National Ice Core Laboratory, particularly John Rhoades, for assistance with core processing. Derek Mastroianni made the gas isotope measurements. Sharon Sneed made the chemistry measurements. Stuart Cowburn and Leah Bjerkelund made the methane measurements. Rich Redd made the electrical measurements used for dating the core. Bruce Vaughn and Trevor Popp made the ice isotope measurements. Dominique Raynaud and an anonymous reviewer helped us to sharpen the focus of the paper.",

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AU - Severinghaus, J. P.

AU - Brook, E. J.

AU - Mayewski, P. A.

AU - Alley, R. B.

AU - Steig, E. J.

AU - Spencer, M. K.

AU - Meyerson, E.

AU - Meese, D. A.

AU - Lamorey, G. W.

AU - Grachev, A.

AU - Gow, A. J.

AU - Barnett, B. A.

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AB - A new ice core from Siple Dome, Antarctica suggests the surface temperature increased by ∼6°C in just several decades at approximately 22 ka BP. This abrupt change did not occur 500km away in the Byrd ice core, or in climate proxy records in the Siple Dome core indicative of the mid-latitude Pacific. This demonstrates there was significant spatial heterogeneity in the response of the Antarctic climate during the last deglaciation and draws attention to unexplained mechanisms of abrupt climate change in Antarctica.

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IS - 1-2

ER -

Abrupt climate change around 22 ka on the Siple Coast of Antarctica

Abstract

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