Investigations on fossil bivalves and wood from Seymour Island, Antarctica ...

• Main Authors: Ivany, Linda C, Brey, Thomas, Huber, Matthew, Buick, Devin P, Schöne, Bernd R
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: Sampling by hand; Macrobenthic long-term series in the German Bight LTER_Benthos; Antarc*; Antarctic; Antarctic Peninsula; Antarctica; Seymour Island
• Online Access: https://dx.doi.org/10.1594/pangaea.771390; https://doi.pangaea.de/10.1594/PANGAEA.771390

Quasi-periodic variation in sea-surface temperature, precipitation, and sea-level pressure in the equatorial Pacific known as the El Niño - Southern Oscillation (ENSO) is an important mode of interannual variability in global climate. A collapse of the tropical Pacific onto a state resembling a so-called 'permanent El Niño', with a preferentially warmed eastern equatorial Pacific, flatter thermocline, and reduced interannual variability, in a warmer world is predicted by prevailing ENSO theory. If correct, future warming will be accompanied by a shift toward persistent conditions resembling El Niño years today, with major implications for global hydrological cycles and consequent impacts on socioeconomic and ecological systems. However, much uncertainty remains about how interannual variability will be affected. Here, we present multi-annual records of climate derived from growth increment widths in fossil bivalves and co-occurring driftwood from the Antarctic peninsula that demonstrate significant ... : Supplement to: Ivany, Linda C; Brey, Thomas; Huber, Matthew; Buick, Devin P; Schöne, Bernd R (2011): El Niño in the Eocene greenhouse recorded by fossil bivalves and wood from Antarctica. Geophysical Research Letters, 38, L16709 ...