Results 21 to 30 of about 1,208,167 (355)

Pervasive ice sheet mass loss reflects competing ocean and atmosphere processes

Science, 2020
Taking stock of our losses Earth's ice sheets are melting and sea levels are rising, so it behooves us to understand better which climate processes are responsible for how much of the mass loss. Smith et al.
Ben E. Smith, H. Fricker, A. Gardner, B. Medley, J. Nilsson, F. Paolo, N. Holschuh, N. Holschuh, S. Adusumilli, K. Brunt, B. Csathó, K. Harbeck, T. Markus, T. Neumann, M. Siegfried, H. Zwally, H. Zwally   +16 more
semanticscholar   +1 more source

Evidence of meltwater retention within the Greenland ice sheet [PDF]

The Cryosphere, 2013
Greenland ice sheet mass losses have increased in recent decades with more than half of these attributed to surface meltwater runoff. However, the magnitudes of englacial storage, firn retention, internal refreezing and other hydrologic processes that ...
A. K. Rennermalm, L. C. Smith, V. W. Chu, J. E. Box, R. R. Forster, M. R. Van den Broeke, D. Van As, S. E. Moustafa   +7 more
doaj   +1 more source

Mineral phosphorus drives glacier algal blooms on the Greenland Ice Sheet

Nature Communications, 2021
Melting of the Greenland Ice Sheet is a leading cause of land-ice mass loss and cryosphere-attributed sea level rise. Blooms of pigmented glacier ice algae lower ice albedo and accelerate surface melting in the ice sheet’s southwest sector.
J. McCutcheon, S. Lutz, C. Williamson, J. Cook, A. Tedstone, A. Vanderstraeten, S. Wilson, A. Stockdale, S. Bonneville, A. Anesio, M. Yallop, J. McQuaid, M. Tranter, L. Benning   +13 more
semanticscholar   +1 more source

ISMIP6 Antarctica: a multi-model ensemble of the Antarctic ice sheet evolution over the 21st century

The Cryosphere, 2020
. Ice flow models of the Antarctic ice sheet are commonly used to simulate its future evolution in response to different climate scenarios and assess the mass loss that would contribute to future sea level rise.
H. Seroussi, S. Nowicki, A. Payne, H. Goelzer, W. Lipscomb, A. Abe‐Ouchi, Cécile Agosta, T. Albrecht, X. Asay-Davis, A. Barthel, R. Calov, R. Cullather, C. Dumas, B. Galton-Fenzi, R. Gladstone, N. Golledge, J. Gregory, R. Greve, T. Hattermann, M. Hoffman, A. Humbert, P. Huybrechts, N. Jourdain, T. Kleiner, E. Larour, G. Leguy, D. Lowry, C. M. Little, Mathieu Morlighem, F. Pattyn, T. Pelle, S. Price, A. Quiquet, R. Reese, N. Schlegel, A. Shepherd, E. Simon, Robin S. Smith, F. Straneo, Sainan Sun, L. Trusel, Jonas Van Breedam, R. V. D. van de Wal, R. Winkelmann, Chen Zhao, Tong Zhang, T. Zwinger   +46 more
semanticscholar   +1 more source

The GRISLI-LSCE contribution to the Ice Sheet Model Intercomparison Project for phase 6 of the Coupled Model Intercomparison Project (ISMIP6) – Part 1: Projections of the Greenland ice sheet evolution by the end of the 21st century [PDF]

The Cryosphere, 2021
Polar amplification will result in amplified temperature changes in the Arctic with respect to the rest of the globe, making the Greenland ice sheet particularly vulnerable to global warming. While the ice sheet has been showing an increased mass loss in
A. Quiquet, C. Dumas
doaj   +1 more source

Ice stream activity scaled to ice sheet volume during Laurentide Ice Sheet deglaciation [PDF]

Nature, 2016
The contribution of the Greenland and West Antarctic ice sheets to sea level has increased in recent decades, largely owing to the thinning and retreat of outlet glaciers and ice streams. This dynamic loss is a serious concern, with some modelling studies suggesting that the collapse of a major ice sheet could be imminent or potentially underway in ...
Stokes, C.R., Margold, M., Clark, C.D., Tarasov, L.   +3 more
openaire   +4 more sources

Four decades of Antarctic Ice Sheet mass balance from 1979–2017

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Statement We evaluate the state of the mass balance of the Antarctic Ice Sheet over the last four decades using a comprehensive, precise satellite record and output products from a regional atmospheric climate model to document its impact on
E. Rignot, J. Mouginot, B. Scheuchl, M. R. van den Broeke, Melchior van Wessem, Mathieu Morlighem   +5 more
semanticscholar   +1 more source

Hydroacoustic, Meteorologic and Seismic Observations of the 2016 Nansen Ice Shelf Calving Event and Iceberg Formation

Frontiers in Earth Science, 2019
On April 7, 2016 the Nansen ice shelf (NIS) front calved into two icebergs, the first large-scale calving event in >30 years. Three hydrophone moorings were deployed seaward of the NIS in December 2015 and over the following months recorded hundreds ...
R. P. Dziak, W. S. Lee, J. H. Haxel, H. Matsumoto, G. Tepp, T.-K. Lau, L. Roche, S. Yun, C.-K. Lee, J. Lee, S.-T. Yoon   +10 more
doaj   +1 more source

Antarctic Ice Sheet paleo-constraint database [PDF]

Earth System Science Data, 2023
We present a database of observational constraints on past Antarctic Ice Sheet changes during the last glacial cycle intended to consolidate the observations that represent our understanding of past Antarctic changes and for state-space estimation and ...
B. S. Lecavalier, L. Tarasov, G. Balco, P. Spector, C.-D. Hillenbrand, C. Buizert, C. Ritz, M. Leduc-Leballeur, R. Mulvaney, P. L. Whitehouse, M. J. Bentley, J. Bamber, J. Bamber   +12 more
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Tracer transport in an isochronal ice-sheet model

Journal of Glaciology, 2017
The full history of ice sheet and climate interactions is recorded in the vertical profiles of geochemical tracers in polar ice sheets. Numerical simulations of these archives promise great advances both in the interpretation of these reconstructions and
ANDREAS BORN
doaj   +1 more source