Document Detail


Eemian interglacial reconstructed from a Greenland folded ice core.
MedLine Citation:
PMID:  23344358     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to the warmer-than-present climate of the Eemian has thus remained unclear. Here we present the new North Greenland Eemian Ice Drilling ('NEEM') ice core and show only a modest ice-sheet response to the strong warming in the early Eemian. We reconstructed the Eemian record from folded ice using globally homogeneous parameters known from dated Greenland and Antarctic ice-core records. On the basis of water stable isotopes, NEEM surface temperatures after the onset of the Eemian (126,000 years ago) peaked at 8 ± 4 degrees Celsius above the mean of the past millennium, followed by a gradual cooling that was probably driven by the decreasing summer insolation. Between 128,000 and 122,000 years ago, the thickness of the northwest Greenland ice sheet decreased by 400 ± 250 metres, reaching surface elevations 122,000 years ago of 130 ± 300 metres lower than the present. Extensive surface melt occurred at the NEEM site during the Eemian, a phenomenon witnessed when melt layers formed again at NEEM during the exceptional heat of July 2012. With additional warming, surface melt might become more common in the future.
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Nature     Volume:  493     ISSN:  1476-4687     ISO Abbreviation:  Nature     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-01-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0410462     Medline TA:  Nature     Country:  England    
Other Details:
Languages:  eng     Pagination:  489-94     Citation Subset:  IM    
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Investigator/Affiliation:
D Dahl-Jensen / ; M R Albert / ; A Aldahan / ; N Azuma / ; D Balslev-Clausen / ; M Baumgartner / ; A-M Berggren / ; M Bigler / ; T Binder / ; T Blunier / ; J C Bourgeois / ; E J Brook / ; S L Buchardt / ; C Buizert / ; E Capron / ; J Chappellaz / ; J Chung / ; H B Clausen / ; I Cvijanovic / ; S M Davies / ; P Ditlevsen / ; O Eicher / ; H Fischer / ; D A Fisher / ; L G Fleet / ; G Gfeller / ; V Gkinis / ; S Gogineni / ; K Goto-Azuma / ; A Grinsted / ; H Gudlaugsdottir / ; M Guillevic / ; S B Hansen / ; M Hansson / ; M Hirabayashi / ; S Hong / ; S D Hur / ; P Huybrechts / ; C S Hvidberg / ; Y Iizuka / ; T Jenk / ; S J Johnsen / ; T R Jones / ; J Jouzel / ; N B Karlsson / ; K Kawamura / ; K Keegan / ; E Kettner / ; S Kipfstuhl / ; H A Kjær / ; M Koutnik / ; T Kuramoto / ; P Köhler / ; T Laepple / ; A Landais / ; P L Langen / ; L B Larsen / ; D Leuenberger / ; M Leuenberger / ; C Leuschen / ; J Li / ; V Lipenkov / ; P Martinerie / ; O J Maselli / ; V Masson-Delmotte / ; J R McConnell / ; H Miller / ; O Mini / ; A Miyamoto / ; M Montagnat-Rentier / ; R Mulvaney / ; R Muscheler / ; A J Orsi / ; J Paden / ; C Panton / ; F Pattyn / ; J-R Petit / ; K Pol / ; T Popp / ; G Possnert / ; F Prié / ; M Prokopiou / ; A Quiquet / ; S O Rasmussen / ; D Raynaud / ; J Ren / ; C Reutenauer / ; C Ritz / ; T Röckmann / ; J L Rosen / ; M Rubino / ; O Rybak / ; D Samyn / ; C J Sapart / ; A Schilt / ; A M Z Schmidt / ; J Schwander / ; S Schüpbach / ; I Seierstad / ; J P Severinghaus / ; S Sheldon / ; S B Simonsen / ; J Sjolte / ; A M Solgaard / ; T Sowers / ; P Sperlich / ; H C Steen-Larsen / ; K Steffen / ; J P Steffensen / ; D Steinhage / ; T F Stocker / ; C Stowasser / ; A S Sturevik / ; W T Sturges / ; A Sveinbjörnsdottir / ; A Svensson / ; J-L Tison / ; J Uetake / ; P Vallelonga / ; R S W van de Wal / ; G van der Wel / ; B H Vaughn / ; B Vinther / ; E Waddington / ; A Wegner / ; I Weikusat / ; J W C White / ; F Wilhelms / ; M Winstrup / ; E Witrant / ; E W Wolff / ; C Xiao / ; J Zheng /

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