Results 41 to 50 of about 1,554,346 (328)
Ice Sheets and the Anthropocene
Geological Society, London, Special Publications, 2013 Abstract Ice could play a role in identifying and defining the Anthropocene. The recurrence of northern hemisphere glaciation and the stability of the Greenland Ice Sheet are both potentially vulnerable to human impact on the environment. However, only a very long hiatus in either would be unusual in the context of the Quaternary
Eric W. Wolff, Eric W. Wolff
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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 +12 more
doaj +1 more source
An initial intercomparison of atmospheric and oceanic climatology for the ICE-5G and ICE-4G models of LGM paleotopography [PDF]
, 2005 This paper investigates the impact of the new ICE-5G paleotopography dataset for Last Glacial Maximum (LGM) conditions on a coupled model simulation of the thermal and dynamical state of the glacial atmosphere and on both land surface and sea surface ...
A. Timmermann +45 more
core +2 more sources
The northern sector of the last British ice sheet : maximum extent and demise [PDF]
, 2008 Strongly divided opinion has led to competing, apparently contradictory, views on the timing, extent, flow configuration and decay mechanism of the last British Ice Sheet.
Bradwell, Tom +11 more
core +2 more sources
Greenland ice sheet mass balance assessed by PROMICE (1995–2015)
Geological Survey of Denmark and Greenland Bulletin, 2019 The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018).
William Colgan +20 more
doaj +1 more source
Quantitative sub-ice and marine tracing of Antarctic sediment provenance (TASP v1.0) [PDF]
Geoscientific Model DevelopmentIce sheet models should be able to accurately simulate palaeo ice sheets to have confidence in their projections of future polar ice sheet mass loss and resulting global sea level rise.
J. W. Marschalek +6 more
doaj +1 more source
Sensitivity of Heinrich-type ice-sheet surge characteristics to boundary forcing perturbations [PDF]
Climate of the Past, 2023 Heinrich-type ice-sheet surges are one of the prominent signals of glacial climate variability. They are characterised as abrupt, quasi-periodic episodes of ice-sheet instabilities during which large numbers of icebergs are released from the Laurentide ...
C. Schannwell +3 more
doaj +1 more source
The effect of buttressing on grounding line dynamics [PDF]
, 2018 Determining the position and stability of the grounding line of a marine ice sheet is a major challenge for ice-sheet models. Here, we investigate the role of lateral shear and ice-shelf buttressing in grounding line dynamics by extending an existing ...
Haseloff, Marianne, Sergienko, Olga V.
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Forty-six years of Greenland Ice Sheet mass balance from 1972 to 2018
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance We reconstruct the mass balance of the Greenland Ice Sheet for the past 46 years by comparing glacier ice discharge into the ocean with interior accumulation of snowfall from regional atmospheric climate models over 260 drainage basins.
J. Mouginot +8 more
semanticscholar +1 more source
Annals of Glaciology, 1984 This paper presents a review of the ice-sheet mechanics behind the modeling work of Pleistocene ice sheets driven by astronomical (Milankovitch) forcing.
J. Weertman, G. E. Birchfield
openaire +2 more sources