Synchronous Climate Changes in Antarctica and the North Atlantic

Steig, Eric J.; Brook, Edward J.; White, James W. C.; Sucher, Cara M.; Bender, Michael L.; Lehman, Scott J.; Morse, D. L.; Waddington, E. D.; Clow, Gary D.

doi:10.1126/science.282.5386.92

Cited by 317 publications

(227 citation statements)

References 42 publications

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“…To answer such questions there is a need to obtain more isotopic records with the best possible resolution at various places in Antarctica. This need is strengthened by the data recently obtained from the Taylor Dome core (hereafter TD), which on the published timescale appears to indicate synchronous climatic changes between this Ross Sea sector of Antarctica and the North Atlantic [Steig et al, 1998]. [1998] used an old timescale for the Vostok core which caused them to incorrectly conclude that both Byrd and Vostok cooled earlier than TD.…”

mentioning

confidence: 97%

A new 27 ky high resolution East Antarctic climate record

Jouzel¹,

Masson²,

Cattani³

et al. 2001

Geophysical Research Letters

154

106

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Abstract. The ice core recently drilled at the Dome Concordia site on the East Antarctic plateau provides a new high resolution isotope record covering part of the last glacial, the last transition and the Holocene. The two step shape of the deglaciation is remarkably similar for all the ice cores now available on the East Antarctic plateau. The first warming trend ends about 14000 years ago and is followed by the well marked Antarctic Cold Reversal (ACR) with a secondary peak common to all records. During the deglaciation, there are more similarities between the near coastal site of Taylor Dome and inland East Antarctica than between Taylor Dome and central Greenland. However, the results for EPICA do appear to confirm the Taylor Dome timescale after about 14 ka, showing cooling into the ACR roughly in phase between Greenland and Antarctica. While the overall deglacial pattem is asynchronous, this suggests that the now classical picture of a temperature seesaw between Antarctica and Greenland may be too simplistic.

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mentioning

confidence: 97%

A new 27 ky high resolution East Antarctic climate record

Jouzel¹,

Masson²,

Cattani³

et al. 2001

Geophysical Research Letters

154

106

View full text Add to dashboard Cite

show abstract

“…US scientists concentrated on sites easily accessible from McMurdo with two drillings completed respectively in 1994 and 1999, a 554 m drilled at Taylor Dome using the PICO drill Steig et al, 1998) and a 1004 m core retrieved at Siple Dome using the GISP-2 drill (Gow and Engelhardt, 2000;Taylor et al, 2004). Both cores gave access to ice from the last glacial period.…”

Section: Deep Drillings In Antarcticamentioning

confidence: 99%

A brief history of ice core science over the last 50 yr

Jouzel

2013

Clim. Past

106

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Abstract. For about 50 yr, ice cores have provided a wealth of information about past climatic and environmental changes. Ice cores from Greenland, Antarctica and other glacier-covered regions now encompass a variety of time scales. However, the longer time scales (e.g. at least back to the Last Glacial period) are covered by deep ice cores, the number of which is still very limited: seven from Greenland, with only one providing an undisturbed record of a part of the last interglacial period, and a dozen from Antarctica, with the longest record covering the last 800 000 yr. This article aims to summarize this successful adventure initiated by a few pioneers and their teams and to review key scientific results by focusing on climate (in particular water isotopes) and climate-related (e.g. greenhouse gases) reconstructions. Future research is well taken into account by the four projects defined by IPICS. However, it remains a challenge to get an intact record of the Last Interglacial in Greenland and to extend the Antarctic record through the mid-Pleistocene transition, if possible back to 1.5 Ma.

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“…However, regional difference in the warming rate from the last glacial to Holocene is significant [88]. It's interesting to point out that the stable isotopic record of the Taylor ice core from the Coast of Ross Sea [85] during the last deglaciation corresponds reversely to that of the ice cores mentioned above, but Stenni et al [88] indicated the dating lethality of the Taylor core [88].…”

Section: Temperature Change At Millennial To Sub-millennial Timescalesmentioning

confidence: 98%

Climatology of stable isotopes in Antarctic snow and ice: Current status and prospects

2012

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Stable isotopic composition in Antarctic snow and ice is commonly regarded as one of invaluable palaeoclimate proxies and plays a critically important role in reconstructing past climate change. In this paper we summarized the spatial distribution and the controlling factors of D,  18 O, d-excess and 17 O-excess in Antarctic snow and ice, and discussed their reliability and applicability as palaeoclimate proxies. Recent progress in the stable isotopic records from Antarctic deep ice cores was reviewed, and perspectives on bridging the current understanding gaps were suggested. Antarctic Ice Sheet is a highly important part of the Earth system. Thanks to its extraordinary environment of very low temperature, extremely low snow accumulation rate and thick ice layer, a wealth of high resolution and long chronology paleoclimatic information is stored, and hence Antarctic Ice Sheet is honored as archives of the Earth's climate. Because the reliability of future climate prediction is, to a great degree, dependent on our knowledge of the past climatic evolution, Antarctic ice core records play an important role in the current global change studies. O in the Vostok and the EPICA Dome C ice cores have documented temperatures over the past 400 ka and 800 ka BP (before present), respectively [1-4], which well reflects the glacial-interglacial change. A drilling has successfully reached the bedrock at the Dome F site providing an ice core which covers more than 700 ka [5]. The robust couplings of dust-climate and CO 2 -climate over the glacial-interglacial timescales are also revealed by a comparison between   D (  18 O) and the corresponding dust and CO 2 records from the same ice cores, taking account of the ice core ice-age and gas-age difference [6][7][8]. These results contribute significantly to our understanding of the Earth's climatic and environmental evolution during Antarctic

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Synchronous Climate Changes in Antarctica and the North Atlantic

Cited by 317 publications

References 42 publications

A new 27 ky high resolution East Antarctic climate record

A new 27 ky high resolution East Antarctic climate record

A brief history of ice core science over the last 50 yr

Climatology of stable isotopes in Antarctic snow and ice: Current status and prospects

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