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Robert M. DeConto
Researcher at University of Massachusetts Amherst
Publications - 134
Citations - 15088
Robert M. DeConto is an academic researcher from University of Massachusetts Amherst. The author has contributed to research in topics: Ice sheet & Antarctic ice sheet. The author has an hindex of 48, co-authored 128 publications receiving 12585 citations. Previous affiliations of Robert M. DeConto include University of Colorado Boulder.
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Journal ArticleDOI
Contribution of Antarctica to past and future sea-level rise
Robert M. DeConto,David Pollard +1 more
TL;DR: A model coupling ice sheet and climate dynamics—including previously underappreciated processes linking atmospheric warming with hydrofracturing of buttressing ice shelves and structural collapse of marine-terminating ice cliffs—is calibrated against Pliocene and Last Interglacial sea-level estimates and applied to future greenhouse gas emission scenarios.
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Rapid Cenozoic glaciation of Antarctica induced by declining atmospheric CO2.
Robert M. DeConto,David Pollard +1 more
TL;DR: In this simulation, declining Cenozoic CO2 first leads to the formation of small, highly dynamic ice caps on high Antarctic plateaux, and at a later time, a CO2 threshold is crossed, initiating ice-sheet height/mass-balance feedbacks that cause the ice caps to expand rapidly with large orbital variations, eventually coalescing into a continental-scale East Antarctic Ice Sheet.
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Modelling West Antarctic ice sheet growth and collapse through the past five million years
David Pollard,Robert M. DeConto +1 more
TL;DR: A combined ice sheet/ice shelf model capable of high-resolution nesting with a new treatment of grounding-line dynamics and ice-shelf buttressing is used to simulate Antarctic ice sheet variations over the past five million years, indicating a long-term trend from more frequently collapsed to more glaciated states.
Journal ArticleDOI
Global cooling during the eocene-oligocene climate transition.
Zhonghui Liu,Zhonghui Liu,Mark Pagani,David Zinniker,Robert M. DeConto,Matthew Huber,Henk Brinkhuis,Sunita R. Shah,R. Mark Leckie,Ann Pearson +9 more
TL;DR: In this article, the authors report proxy records of sea surface temperatures from multiple ocean localities and show that the high-latitude temperature decrease was substantial and heterogeneous, and that Northern Hemisphere glaciation was not required to accommodate the magnitude of continental ice growth during this time.
Journal ArticleDOI
Obliquity-paced Pliocene West Antarctic ice sheet oscillations
Tim R Naish,Tim R Naish,Ross D. Powell,Richard H. Levy,Richard H. Levy,Gary S. Wilson,Reed P. Scherer,Franco M Talarico,Lawrence A. Krissek,Frank Niessen,Massimo Pompilio,Terry J. Wilson,Lionel Carter,Robert M. DeConto,Peter Huybers,Robert M. McKay,David Pollard,James Ross,D. Winter,Peter Barrett,Greg H. Browne,Rosemary Cody,Rosemary Cody,Ellen A. Cowan,James S. Crampton,Gavin B. Dunbar,Nelia W. Dunbar,Fabio Florindo,Catalina Gebhardt,Ian J. Graham,M. J. Hannah,Dhiresh Hansaraj,Dhiresh Hansaraj,David M. Harwood,D. Helling,Stuart Henrys,Linda A. Hinnov,Gerhard Kuhn,Philip R. Kyle,Andreas Läufer,P. Maffioli,Diana Magens,Kevin W. Mandernack,William C. McIntosh,C. Millan,Roger H. Morin,Christian Ohneiser,Timothy Paulsen,Davide Persico,Ian Raine,J. Reed,J. Reed,Christina R. Riesselman,Leonardo Sagnotti,Douglas R. Schmitt,Charlotte Sjunneskog,P. Strong,Marco Taviani,S. W. Vogel,T. I. Wilch,Trevor Williams +60 more
TL;DR: A marine glacial record from the upper 600 m of the AND-1B sediment core recovered from beneath the northwest part of the Ross ice shelf is presented and well-dated, ∼40-kyr cyclic variations in ice-sheet extent linked to cycles in insolation influenced by changes in the Earth’s axial tilt (obliquity) during the Pliocene are demonstrated.