Results 101 to 110 of about 5,356 (213)

Terminus-driven retreat of a major southwest Greenland tidewater glacier during the early 19th century : insights from glacier reconstructions and numerical modelling [PDF]

, 2014
Peer ...
Nick, Faezeh M, Lea, JM, Morlighem, M, Van As, D, Lea, James M, Kjær, Kurt H., Schofield, J. Edward, Nick, FM, Kjaer, Kurt H., Schofield, JE, Rea, Brice R, Mair, Douglas WF, Schofield, J Edward, Weidick, Anker, Rea, Brice R., Morlighem, Mathieu, Lea, James M., Nick, Faezeh M., Rea, BR, Mair, Douglas W.F., Weidick, A, Mair, Douglas W. F., van As, Dirk, Mair, DWF, Kjaer, Kurt H, Kjær, KH   +25 more
core   +1 more source

Seasonal Ice Dynamics Control the Timing of Crevasse Drainage at a Fast‐Flowing Outlet Glacier

AGU Advances, Volume 7, Issue 3, June 2026.
Abstract Crevasse field drainage transfers at least half of the seasonal runoff from the surface to the bed of the Greenland Ice Sheet, but the patterns of drainage are complex and spatio‐temporally heterogenous. To better understand controls on crevasse drainage processes, we use an automated deep learning method to map the seasonal filling and ...
T. R. Chudley, C. R. Stokes, J. M. Lea, T. Winterbottom, R. Law, C. C. Clason, H. E. Wytiahlowsky, J. L. Dechow   +7 more
wiley   +1 more source

Processes of crevasse formation and the dynamics of calving glaciers : a study at Breiđamerkurjökull

, 2009
A new model proposed by Benn et al. (2006, 2007) explains the dynamics of calving glaciers based on a new sliding law and a calving criterion modified from a crevasse depth model. In this thesis three key elements of this model are tested: 1) the role
Mottram, Ruth
core  

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   +1 more source

Empirical constraints on ice-cliff calving

Abstract When calving cliffs at the margins of Earth’s ice sheets are taller than a critical height, runaway ice retreat may be triggered in a mechanism called the marine ice-cliff instability. However, this idea remains controversial, because tall cliffs for which this process applies have rarely been observed.
Caroline Needell, Catherine Walker, Jeremy Bassis   +2 more
openaire   +1 more source

Determining the Character of Subglacial Sediments in the Ice‐Bedrock Interface Zone of Antarctica Using Horizontal‐to‐Vertical Spectral Ratios (HVSRs) of Seismic Ambient Noise

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Interactions between the Antarctic Ice Sheet and the underlying solid Earth occur within the ice‐bedrock interface zone (IBIZ), containing structures of sediments and rocks that strongly influence ice sheet dynamics. Existing insights into the Antarctic IBIZ come primarily from interpretations of airborne geophysical data and active seismic ...
I. D. Kelly, A. M. Reading, T. Stål, B. Kulessa, A. García‐Jerez, J. Piña‐Flores, E. Paolucci, A. Tanzini, R. J. Turner, J. C. Magyar, A. P. Bassom   +10 more
wiley   +1 more source

Ice Island Calvings and Ice Shelf Changes, Milne Ice Shelf and Ayles Ice Shelf, Ellesmere Island, N.W.T. [PDF]

ARCTIC, 1986
Analysis of vertical air photographs taken in 1959 and 1974 reveals that a total of 48 sq km, involving 3.3 cubic km, of ice calved from Milne and Ayles ice shelves between July 1959 and July 1974. In addition, Ayles Ice Shelf moved to about 5 km out of Ayles Fiord. It still occupied this exposed position in July 1984. The ice losses and movements have
openaire   +1 more source

Ice‐Sheet–Ocean Interactions and the Reversibility of a Regime Shift Beneath Filchner‐Ronne Ice Shelf

Journal of Geophysical Research: Oceans, Volume 131, Issue 6, June 2026.
Abstract Future atmospheric warming could cause an abrupt increase in ocean temperature beneath the Filchner–Ronne Ice Shelf, Antarctica, from −2.2°C to more than 0°C in a few decades. In simulations, such a transition leads to a twenty‐fold increase in sub‐shelf melt rates, driving a retreat of the ice sheet.
Ronja Reese, Jan De Rydt, Kaitlin A. Naughten   +2 more
wiley   +1 more source

The Decline of a Caldera‐Filling Glacier at Volcán Sollipulli, Chile

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 6, June 2026.
Abstract Southern Andean glaciers have undergone fast retreat in recent decades. This results in reduced freshwater storage, contribution to sea‐level rise, and locally to the formation of glacial lakes, that may pose the risk of glacial lake outburst floods (GLOFs).
J. E. Arndt, M. Somos, S. Navas, D. Farías‐Barahona, A. Rivera, H. Xie, A. Fernández   +6 more
wiley   +1 more source

Role of Mid‐ and High‐Latitude, Southern Hemisphere Processes for Ushering in the Middle Pleistocene Transition

Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract Glacial‐interglacial cycles increased in length from about 41 to 100 thousand years during the Middle Pleistocene Transition (MPT) about 1.5 to 0.8 million years ago. This took place in step with strong global cooling after several million years of weaker cooling.
G. Shaffer, E. Fernández Villanueva, Cyrus Karas   +2 more
wiley   +1 more source