A 2.8 Ma sedimentological, geochemical and palynological record of sediment core ICDP5011-1 in Lake Elgygytgyn, NE Russia, supplement to: Melles, Martin; Brigham-Grette, Julie; Minyuk, Pavel S; Nowaczyk, Norbert R; Wennrich, Volker; DeConto, Robert M; Anderson, Patricia A; Andreev, Andrei A; Coletti, Anthony; Cook, Timothy L; Haltia-Hovi, Eeva; Kukkonen, Maaret; Lozhkin, Anatoly V; Rosén, Peter; Tarasov, Pavel E; Vogel, Hendrik; Wagner, Bernd (2012): 2.8 Million years of Arctic climate change from Lake El'gygytgyn, NE Russia. Science, 337(6092), 315-320

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 (NE Russia) provides a continuous high-resolution record from the Arctic spaning the past 2.8 Ma. The core reveals nume...

Full description

Bibliographic Details
Main Authors: Melles, Martin, Brigham-Grette, Julie, Minyuk, Pavel S, Nowaczyk, Norbert R, Wennrich, Volker, DeConto, Robert M, Anderson, Patricia A, Andreev, Andrei A, Coletti, Anthony, Cook, Timothy L, Haltia-Hovi, Eeva, Kukkonen, Maaret, Lozhkin, Anatoly V, Rosén, Peter, Tarasov, Pavel E, Vogel, Hendrik, Wagner, Bernd
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2012
Subjects:
Composite Core
ICDP_Elgygytgyn-Drilling-Project
Sampling on land
Lake Elgygytgyn - Climate History of the Arctic since 3.6 Million Years ELGYGYTGYN
Antarctic
Arctic
Brigham
Hovi
West Antarctic Ice Sheet
Antarc*
Climate change
Ice Sheet
Online Access:https://dx.doi.org/10.1594/pangaea.783305
https://doi.pangaea.de/10.1594/PANGAEA.783305
Description
Summary: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 (NE Russia) provides a continuous high-resolution record from the Arctic spaning the past 2.8 Ma. The core reveals numerous "super interglacials" during the Quaternary, with maximum summer temperatures and annual precipitation during marine benthic isotope stages (MIS) 11c and 31 ~4-5 °C and ~300 mm higher than those of MIS 1 and 5e. Climate simulations show 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.

Similar Items