Results 41 to 50 of about 51,075 (190)

Monitoring Greenland ice sheet buoyancy-driven calving discharge using glacial earthquakes

Annals of Glaciology, 2019
Since the 2000s, Greenland ice sheet mass loss has been accelerating, followed by increasing numbers of glacial earthquakes (GEs) at near-grounded glaciers. GEs are caused by calving of km-scale icebergs which capsize against the terminus. Seismic record
Amandine Sergeant, Anne Mangeney, Vladislav A. Yastrebov, Fabian Walter, Jean-Paul Montagner, Olivier Castelnau, Eléonore Stutzmann, Pauline Bonnet, Velotioana Jean-Luc Ralaiarisoa, Suzanne Bevan, Adrian Luckman   +10 more
doaj   +1 more source

Distinguishing subaerial and submarine calving with underwater noise

Journal of Glaciology, 2022
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task.
Oskar Glowacki
doaj   +1 more source

A particle based simulation model for glacier dynamics [PDF]

, 2013
A particle-based computer simulation model was developed for investigating the dynamics of glaciers. In the model, large ice bodies are made of discrete elastic particles which are bound together by massless elastic beams.
Timonen, J., Moore, J. C., J. A. Åström, T. Zwinger, Astrom, J. A., D. Benn, J. C. Moore, Zwinger, T., Tallinen, T., T. Tallinen, T. I. Riikilä, Benn, D., J. Timonen, Riikila, T. I.   +13 more
core   +2 more sources

Historical occurrence of Antarctic icebergs within mercantile shipping routes and the exceptional events of the 1890s

Journal of Glaciology, 2023
A major consideration for maritime activity in the Southern Hemisphere is the northern limit of icebergs, or the Southern Ocean Limit Of Known Ice (SOLOKI).
Robert Keith Headland, Nicholas Edward Hughes, Jeremy Paul Wilkinson   +2 more
doaj   +1 more source

Iceberg properties and distributions in three Greenlandic fjords using satellite imagery

Annals of Glaciology, 2017
Icebergs calved from tidewater glaciers represent about one third to one half of the freshwater flux from the Greenland ice sheet to the surrounding ocean. Using multiple satellite datasets, we quantify the first fjord-wide distributions of iceberg sizes
Daniel J. Sulak, David A. Sutherland, Ellyn M. Enderlin, Leigh A. Stearns, Gordon S. Hamilton   +4 more
doaj   +1 more source

Sensitivity of a calving glacier to ice–ocean interactions under climate change: new insights from a 3-D full-Stokes model [PDF]

The Cryosphere, 2019
Iceberg calving accounts for between 30 % and 60 % of net mass loss from the Greenland Ice Sheet, which has intensified and is now the single largest contributor to global sea level rise in the cryosphere.
J. Todd, J. Todd, P. Christoffersen, T. Zwinger, P. Råback, D. I. Benn   +5 more
doaj   +1 more source

Numerical Modeling Shows Increased Fracturing Due to Melt-Undercutting Prior to Major Calving at Bowdoin Glacier

Frontiers in Earth Science, 2020
Projections of future ice sheet mass loss and thus sea level rise rely on the parametrization of iceberg calving in ice sheet models. The interconnection between submarine melt-induced undercutting and calving is still poorly understood, which makes ...
Eef C. H. van Dongen, Jan A. Åström, Guillaume Jouvet, Joe Todd, Douglas I. Benn, Martin Funk   +5 more
doaj   +1 more source

Monitoring rodents' life history by body temperature and activity

Wildlife Biology, EarlyView.
European hamster populations are rapidly declining all over their distribution area. One of the suggested reasons is a strong and ongoing decrease in the reproductive output of about 77% since the nineteen twenties. The cause of this decline is, however, unknown.
S. Monecke, T. Gerrits, R. Brand, R. J. M. Van Kats, T. ter Meulen, P. Pévet, Monika Vadkertikova, Alp Altunkaya, G. J. D. M. Müskens, M. J. J. La Haye   +9 more
wiley   +1 more source

Calving Dynamics and the Potential Impact of Mélange Buttressing at the Western Calving Front of Thwaites Glacier, West Antarctica [PDF]

The western region of the wide Thwaites Glacier terminus is characterized by a near-vertical calving front. The grounding line at this western calving front (WCF) rests on a relatively high ridge, behind which exists a reverse-sloping bed; retreat of the
Luckman, Adrian, Gladstone, Rupert; id_orcid, Gladstone, Rupert, Bevan, Suzanne, Crawford, Anna, Åström, Jan, Robertsén, Fredrik, Benn, Douglas I, Zwinger, Thomas, Benn, Douglas I.   +9 more
core   +3 more sources

47 Years of Large Antarctic Calving Events: Insights From Extreme Value Theory

Geophysical Research Letters
Massive calving events result in significant instantaneous ice loss from Antarctica. The rarity and stochastic nature of these extreme events makes it difficult to understand their physical drivers, temporal trends, and future likelihood. To address this
Emma J. MacKie, Joanna Millstein, Katherine A. Serafin   +2 more
doaj   +1 more source