Results 21 to 30 of about 7,682 (251)

An ice sheet model validation framework for the Greenland ice sheet [PDF]

Geoscientific Model Development, 2016
Abstract. We propose a new ice sheet model validation framework – the Cryospheric Model Comparison Tool (CmCt) – that takes advantage of ice sheet altimetry and gravimetry observations collected over the past several decades and is applied here to modeling of the Greenland ice sheet.
Stephen F. Price, Matthew J. Hoffman, Jennifer A. Bonin, Ian M. Howat, Thomas Neumann, Jack Saba, Irina Tezaur, Jeffrey Guerber, Don P. Chambers, Katherine J. Evans, Joseph H. Kennedy, Jan Lenaerts, William H. Lipscomb, Mauro Perego, Andrew G. Salinger, Raymond S. Tuminaro, Michiel R. van den Broeke, Sophie M. J. Nowicki   +17 more
openaire   +7 more sources

GBaTSv2: a revised synthesis of the likely basal thermal state of the Greenland Ice Sheet [PDF]

The Cryosphere, 2022
The basal thermal state (frozen or thawed) of the Greenland Ice Sheet is under-constrained due to few direct measurements, yet knowledge of this state is becoming increasingly important to interpret modern changes in ice flow. The first synthesis of this
J. A. MacGregor, W. Chu, W. T. Colgan, M. A. Fahnestock, D. Felikson, D. Felikson, N. B. Karlsson, S. M. J. Nowicki, M. Studinger   +8 more
doaj   +1 more source

Review article: Earth's ice imbalance [PDF]

The Cryosphere, 2021
We combine satellite observations and numerical models to show that Earth lost 28 trillion tonnes of ice between 1994 and 2017. Arctic sea ice (7.6 trillion tonnes), Antarctic ice shelves (6.5 trillion tonnes), mountain glaciers (6.1 trillion tonnes ...
T. Slater, I. R. Lawrence, I. N. Otosaka, A. Shepherd, N. Gourmelen, L. Jakob, P. Tepes, L. Gilbert, P. Nienow   +8 more
doaj   +1 more source

Variations of Mass Balance of the Greenland Ice Sheet from 2002 to 2019

Remote Sensing, 2020
The melting of the polar ice caps is considered to be an essential factor for global sea-level rise and has received significant attention. Quantitative research on ice cap mass changes is critical in global climate change.
Yaqiong Mu, Yanqiang Wei, Jinkui Wu, Yongjian Ding, Donghui Shangguan, Di Zeng   +5 more
doaj   +1 more source

The influence of inter-annual temperature variability on the Greenland Ice Sheet volume

Annals of Glaciology, 2023
The Greenland Ice Sheet has become an increasingly larger contributor to sea level rise in the past two decades and is projected to continue to lose mass.
Mikkel Lauritzen, Guðfinna Aðalgeirsdóttir, Nicholas Rathmann, Aslak Grinsted, Brice Noël, Christine S. Hvidberg   +5 more
doaj   +1 more source

Threatened loss of the Greenland ice-sheet [PDF]

Nature, 2004
The Greenland ice-sheet would melt faster in a warmer climate and is likely to be eliminated — except for residual glaciers in the mountains — if the annual average temperature in Greenland increases by more than about 3 °C. This could raise the global average sea-level by 7 metres over a period of 1,000 years or more.
Gregory, J. M., Huybrechts, Philippe, Raper, S. C. B.   +2 more
openaire   +3 more sources

Paleo sea-level indicators and proxies from Greenland in the GAPSLIP database and comparison with modelled sea level from the PaleoMIST ice-sheet reconstruction

GEUS Bulletin, 2023
One of the most common ways to assess ice-sheet reconstructions of the past is to evaluate how they impact changes in sea level through glacial isostatic adjustment. PaleoMIST 1.0, a preliminary reconstruction of topography and ice sheets during the past
Evan J. Gowan
doaj   +1 more source

Holocene deceleration of the Greenland Ice Sheet [PDF]

Science, 2016
Keeping a stiff upper layer The interior of the Greenland Ice Sheet is growing thicker, in contrast to the thinning that is occurring at its edges. Why? MacGregor et al. conclude that more snow is accumulating and that the ice in the interior is flowing more slowly than it did thousands of years ago (see ...
MacGregor, Joseph A, Colgan, William T, Fahnestock, Mark A, Morlighem, Mathieu, Catania, Ginny A, Paden, John D, Gogineni, S Prasad   +6 more
openaire   +4 more sources

Greenland plateau jets [PDF]

Tellus: Series A, Dynamic Meteorology and Oceanography, 2013
The high ice-covered topography of Greenland represents a significant barrier to atmospheric flow and, as a direct and indirect result, it plays a crucial role in the coupled climate system.
George William Kent Moore, Ian Alasdair Renfrew, John Joseph Cassano   +2 more
doaj   +1 more source

Greenland Ice Sheet Ice Slab Expansion and Thickening

Geophysical Research Letters, 2022
We use airborne accumulation radar data acquired over the Greenland Ice Sheet between 2002 and 2018 to identify changes in ice slab extent and thickness. We show that ice slabs several metres thick were already present at least as early as 2002. Between 2012 and 2018, they expanded 13,400-17,600  inland, or by 37-44%.
Jullien, N., Tedstone, A. J., Machguth, H., Karlsson, N. B., Helm, V.   +4 more
openaire   +3 more sources