Results 61 to 70 of about 7,682 (251)

Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene [PDF]

Climate of the Past, 2015
The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change.
S. J. Koenig, A. M. Dolan, B. de Boer, E. J. Stone, D. J. Hill, R. M. DeConto, A. Abe-Ouchi, D. J. Lunt, D. Pollard, A. Quiquet, F. Saito, J. Savage, R. van de Wal   +12 more
doaj   +1 more source

Using results from the PlioMIP ensemble to investigate the Greenland Ice Sheet during the mid-Pliocene Warm Period [PDF]

Climate of the Past, 2015
During an interval of the Late Pliocene, referred to here as the mid-Pliocene Warm Period (mPWP; 3.264 to 3.025 million years ago), global mean temperature was similar to that predicted for the end of this century, and atmospheric carbon dioxide ...
A. M. Dolan, S. J. Hunter, D. J. Hill, A. M. Haywood, S. J. Koenig, B. L. Otto-Bliesner, A. Abe-Ouchi, F. Bragg, W.-L. Chan, M. A. Chandler, C. Contoux, A. Jost, Y. Kamae, G. Lohmann, D. J. Lunt, G. Ramstein, N. A. Rosenbloom, L. Sohl, C. Stepanek, H. Ueda, Q. Yan, Z. Zhang   +21 more
doaj   +1 more source

Unusual Radar Echoes from the Greenland Ice Sheet [PDF]

Science, 1993
Airborne radar images of part of the Greenland ice sheet reveal icy terrain whose radar properties are unique among radar-studied terrestrial surfaces but resemble those of Jupiter's icy Galilean satellites. The 5.6- and 24-centimeter-wavelength echoes from the Greenland percolation zone, like the 3.5- and 13-centimeter-wavelength echoes from the icy ...
Rignot, EJ, Ostro, SJ, van Zyl, JJ, Jezek, KC   +3 more
openaire   +4 more sources

Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates [PDF]

The Cryosphere
The Greenland Ice Sheet is a key contributor to contemporary global sea level rise, but its long-term history and response to episodes of warming in Earth's geological past remain uncertain.
G. J. G. Paxman, S. S. R. Jamieson, A. M. Dolan, M. J. Bentley   +3 more
doaj   +1 more source

Radiostratigraphy Reflects the Present-Day, Internal Ice Flow Field in the Ablation Zone of Western Greenland

Frontiers in Earth Science, 2018
Englacial radar reflectors in the ablation zone of the Greenland Ice Sheet are derived from layering deposited in the accumulation zone over past millennia. The original layer structure is distorted by ice flow toward the margin.
Caitlyn Florentine, Joel Harper, Jesse Johnson, Toby Meierbachtol   +3 more
doaj   +1 more source

Future Sea Level Change Under Coupled Model Intercomparison Project Phase 5 and Phase 6 Scenarios From the Greenland and Antarctic Ice Sheets

Geophysical Research Letters, 2021
Projections of the sea level contribution from the Greenland and Antarctic ice sheets (GrIS and AIS) rely on atmospheric and oceanic drivers obtained from climate models.
Antony J. Payne, Sophie Nowicki, Ayako Abe‐Ouchi, Cécile Agosta, Patrick Alexander, Torsten Albrecht, Xylar Asay‐Davis, Andy Aschwanden, Alice Barthel, Thomas J. Bracegirdle, Reinhard Calov, Christopher Chambers, Youngmin Choi, Richard Cullather, Joshua Cuzzone, Christophe Dumas, Tamsin L. Edwards, Denis Felikson, Xavier Fettweis, Benjamin K. Galton‐Fenzi, Heiko Goelzer, Rupert Gladstone, Nicholas R. Golledge, Jonathan M. Gregory, Ralf Greve, Tore Hattermann, Matthew J. Hoffman, Angelika Humbert, Philippe Huybrechts, Nicolas C. Jourdain, Thomas Kleiner, Peter Kuipers Munneke, Eric Larour, Sebastien Le clec'h, Victoria Lee, Gunter Leguy, William H. Lipscomb, Christopher M. Little, Daniel P. Lowry, Mathieu Morlighem, Isabel Nias, Frank Pattyn, Tyler Pelle, Stephen F. Price, Aurélien Quiquet, Ronja Reese, Martin Rückamp, Nicole‐Jeanne Schlegel, Hélène Seroussi, Andrew Shepherd, Erika Simon, Donald Slater, Robin S. Smith, Fiammetta Straneo, Sainan Sun, Lev Tarasov, Luke D. Trusel, Jonas Van Breedam, Roderik van deWal, Michiel van denBroeke, Ricarda Winkelmann, Chen Zhao, Tong Zhang, Thomas Zwinger   +63 more
doaj   +1 more source

Three‐Dimensional Simulation of Crack Initiation in ice Shelves at Pinning Points

PAMM, Volume 26, Issue 1, March 2026.
ABSTRACT Ice shelves are large ice masses floating on the ocean that are still connected to the inland ice of a glacier. Due to high elevations in the bathymetry, the ice shelf can be partially grounded. These areas are called ice rises that act as pinning points.
Rabea Sondershaus, Angelika Humbert, Ralf Müller   +2 more
wiley   +1 more source

Jökulhlaup Observed at Greenland Ice Sheet

Eos, Transactions American Geophysical Union, 2008
On 31 August 2007, about 35 kilometers upstream from the town of Kangerlussuaq, in western Greenland, a roughly 0.5‐square‐kilometer permanently ice‐dammed lake on the northern flank of the Russell Glacier—an outlet glacier of the Greenland Ice Sheet—suddenly broke free and drained into the Watson River (Figure 1).
Sebastian H. Mernild, Bent Hasholt, Douglas L. Kane, Amy C. Tidwell   +3 more
openaire   +1 more source

Glacier‐Atmosphere Interactions and Feedbacks in High‐Mountain Regions ‐ A Review

Reviews of Geophysics, Volume 64, Issue 1, March 2026.
Abstract Mountain glaciers are among the natural systems most vulnerable to climate change. However, their interactions with the atmosphere are complex and not fully understood. These interactions can trigger rapid adjustments and climate feedbacks that either amplify or attenuate atmospheric signals, influencing both glacier response and large‐scale ...
T. Sauter, B. W. Brock, E. Collier, B. Goger, A. R. Groos, K. F. Haualand, R. Mott, L. Nicholson, R. Prinz, T. E. Shaw, I. Stiperski, A. Georgi, M. Haugeneder, A. Mandal, D. Reynolds, M. Saigger, J. E. Sicart, A. Voordendag   +17 more
wiley   +1 more source

The Atmosphere's Substantial Role in Interannual Variability of Earth's Energy Imbalance

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Earth's Energy Imbalance (EEI) is a key metric to quantify climate change. While the ocean absorbs most excess heat, the atmosphere contributes only 1%–2% to the long‐term mean of EEI. However, our analysis of observational data demonstrates that variations in the atmosphere's energy content play a much larger role in interannual variations of
Michael Mayer, Norman G. Loeb, John M. Lyman, Gregory C. Johnson, Susanna Winkelbauer   +4 more
wiley   +1 more source