Results 91 to 100 of about 117,586 (338)

Modelling Greenland Ice Sheet inception and sustainability during the Late Pliocene [PDF]

, 2015
Understanding the evolution and dynamics of ice sheet growth during past warm periods is a very important topic considering the potential total removal of the Greenland ice sheet in the future.
Abe-Ouchi, Abe-Ouchi, Arakawa, Badger, Bartoli, Beghin, Beghin, Berger, Bierman, Bonelli, Born, Brigham-Grette, Charbit, Contoux, Contoux, Cravatte, Crowley, De Schepper, De Schepper, De Schepper, Dolan, Dolan, Dolan, Dowsett, Dowsett, Dufresne, Dwyer, Fausto, Fichefet, Fichefet, Gasson, Haywood, Haywood, Haywood, Haywood, Hill, Hill, Hourdin, Jansen, Japsen, Kageyama, Khodri, Kleiven, Koenig, Koenig, Ladant, Langen, Laskar, Le Meur, Le Sommer, Leduc, Lisiecki, Lott, Lunt, Lunt, Lévy, MacAyeal, Madec, Madec, Marshall, Marti, Miller, Mudelsee, Murray, Paillard, Peyaud, Pollard, Raymo, Reeh, Ridley, Ritz, Ritz, Rohling, Rommelaere, Rovere, Salzmann, Salzmann, Seki, Solgaard, Solgaard, Stone, Tarasov, Toniazzo, Woillez, Wolf, Yan   +85 more
core   +2 more sources

Increasing stable time-step sizes of the free-surface problem arising in ice-sheet simulations [PDF]

arXiv, 2021
Numerical models for predicting future ice-mass loss of the Antarctic and Greenland ice sheet requires accurately representing their dynamics. Unfortunately, ice-sheet models suffer from a very strict time-step size constraint, which for higher-order models constitutes a severe bottleneck since in each time step a nonlinear and computationally ...
arxiv  

Refreezing on the Greenland ice sheet: a comparison of parameterizations [PDF]

The Cryosphere, 2012
Abstract. Retention and refreezing of meltwater are acknowledged to be important processes for the mass budget of polar glaciers and ice sheets. Several parameterizations of these processes exist for use in energy and mass balance models. Due to a lack of direct observations, validation of these parameterizations is difficult.
Janneke Ettema, Janneke Ettema, Xavier Fettweis, Lennert B. Stap, M. R. van den Broeke, Carleen Reijmer   +5 more
openaire   +5 more sources

Unprecedented atmospheric conditions (1948–2019) drive the 2019 exceptional melting season over the Greenland ice sheet

The Cryosphere, 2019
. Understanding the role of atmospheric circulation anomalies on the surface mass balance of the Greenland ice sheet (GrIS) is fundamental for improving estimates of its current and future contributions to sea level rise.
M. Tedesco, X. Fettweis
semanticscholar   +1 more source

Monitoring of the Greenland ice sheet using a broadband seismometer network: the GLISN project

Antarctic Record, 2014
Global climate change is currently causing melting of the Greenland ice sheet. Recently, a new type of seismic event, referred to as a "glacial earthquake", has been recognized.
Genti Toyokuni, Masaki Kanao, Yoko Tono, Tetsuto Himeno, Seiji Tsuboi, Dean Childs, Kent Anderson, Hiroshi Takenaka   +7 more
doaj   +1 more source

Reconstruction and palaeoclimatic implications of Loch Lomond Readvance glaciers in the Southeast Grampians, Scotland

Journal of Quaternary Science, EarlyView.
ABSTRACT The glaciation of Scotland during the Loch Lomond Stadial (LLS; 12.9–11.7 ka BP) left a distinct and well‐preserved geomorphological signature, permitting detailed reconstructions of former glaciers and palaeoclimatic conditions. However, the extent and style of glaciation in the Southeast Grampians remains poorly constrained.
William Spicer
wiley   +1 more source

The Balance of the Greenland Ice Sheet [PDF]

Journal of Glaciology, 1955
AbstractPlanimetry of the 15 maps of scale 1:1,000,000 of the World Aeronautical Chart, U.S.A.F., gives 1.726 × 106 km.2 for the surface area of the Greenland Ice Sheet. The hypsometric curve obtained by measuring the area between contours at 1000-ft. (305 m.) intervals with a planimeter gives 2135 m. for the mean height of the ice sheet.
openaire   +2 more sources

Greenland Ice Sheet: Increased coastal thinning [PDF]

Geophysical Research Letters, 2004
Repeated laser‐altimeter surveys and modelled snowfall/summer melt show average ice loss from Greenland between 1997 and 2003 was 80 ± 12 km3 yr−1, compared to about 60 km3 yr−1 for 1993/4–1998/9. Half of the increase was from higher summer melting, with the rest caused by velocities of some glaciers exceeding those needed to balance upstream snow ...
Philippe Huybrechts, Philippe Huybrechts, S. Manizade, J. Yungel, Robert H. Thomas, Robert H. Thomas, Robert N. Swift, William B. Krabill, John Cappelen, John Sonntag, Beata Csatho, Waleed Abdalati, Edward Hanna, E. Frederick, C. Martin   +14 more
openaire   +4 more sources

Giant viral signatures on the Greenland ice sheet [PDF]

Microbiome
Abstract Background Dark pigmented snow and glacier ice algae on glaciers and ice sheets contribute to accelerating melt. The biological controls on these algae, particularly the role of viruses, remain poorly understood.
Perini L, Sipes K, Zervas A, Bellas C, Lutz S, Moniruzzaman M, Mourot R, Benning L, Tranter M, Anesio A.   +9 more
europepmc   +6 more sources

Changes in the Greenland Ice Sheet of the Southeastern Maniitsoq Coast from 1994-2004 and 2009-2019 [PDF]

, 2019
Remote sensing mechanisms through the use of technology like the Landsat 5-7 Land Manager satellites are commonly used in conjunction with multispectral methods such as unsupervised classification to record and analyze changes in snow and ice over time ...
Kaewwilai, Alyssa J., Reisman, Charlie E.   +1 more
core   +1 more source