reference : 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia

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Bibliographic fields
reftype Journal Article
Abstract The reliability of Arctic climate predictions is currently hampered by insufficient knowledge of natural climate variability in the past. A sediment core from Lake El’gygytgyn in northeastern (NE) Russia provides a continuous, high-resolution record from the Arctic, spanning the past 2.8 million years. This core reveals numerous “super interglacials” during the Quaternary; for marine benthic isotope stages (MIS) 11c and 31, maximum summer temperatures and annual precipitation values are ~4° to 5°C and ~300 millimeters higher than those of MIS 1 and 5e. Climate simulations show that these extreme warm conditions are difficult to explain with greenhouse gas and astronomical forcing alone, implying the importance of amplifying feedbacks and far field influences. The timing of Arctic warming relative to West Antarctic Ice Sheet retreats implies strong interhemispheric climate connectivity.
Author Melles, Martin Brigham-Grette, Julie Minyuk, Pavel S. Nowaczyk, Norbert R. Wennrich, Volker DeConto, Robert M. Anderson, Patricia M. Andreev, Andrei A. Coletti, Anthony Cook, Timothy L. Haltia-Hovi, Eeva Kukkonen, Maaret Lozhkin, Anatoli V. Rosén, Peter Tarasov, Pavel Vogel, Hendrik Wagner, Bernd
DOI 10.1126/science.1222135
Date July 20, 2012
Issue 6092
Journal Science
Pages 315-320
Title 2.8 million years of Arctic climate change from Lake El’gygytgyn, NE Russia
Volume 337
Year 2012
Bibliographic identifiers
.reference_type 0
_chapter ["Appendix 3: Climate Science FINAL"]
_record_number 4402
_uuid 547c621b-1bc9-40e9-b3b1-f55c11daca76