Results 91 to 100 of about 918 (177)

Modeling the Controls on the Front Position of a Tidewater Glacier in Svalbard

Frontiers in Earth Science, 2017
Calving is an important mass-loss process at ice sheet and marine-terminating glacier margins, but identifying and quantifying its principal driving mechanisms remains challenging.
Jaime Otero, Francisco J. Navarro, Javier J. Lapazaran, Ethan Welty, Darek Puczko, Roman Finkelnburg   +5 more
doaj   +1 more source

A Novel Approach to Automated Mapping Subweekly Calving Front of Petermann Glacier (2016–2023)—Using Sentinel-2 Satellite Data and Segment Anything Model (SAM)

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Monitoring glacier calving fronts is critical for understanding ice dynamics and their response to climate change. However, existing methods of mapping ice calving front face limitations in temporal resolution and positional accuracy, hindering effective
Daan Li, Liming Jiang, Shun Cai, Ronggang Huang, Xi Lu   +4 more
doaj   +1 more source

Melt-under-cutting and buoyancy-driven calving from tidewater glaciers: new insights from discrete element and continuum model simulations

Journal of Glaciology, 2017
The simple calving laws currently used in ice-sheet models do not adequately reflect the complexity and diversity of calving processes. To be effective, calving laws must be grounded in a sound understanding of how calving actually works.
DOUGLAS I. BENN, JAN ÅSTRÖM, THOMAS ZWINGER, JOE TODD, FAEZEH M. NICK, SUSAN COOK, NICHOLAS R. J. HULTON, ADRIAN LUCKMAN   +7 more
doaj   +1 more source

Insights From Two Decades of Seismicity at Columbia Glacier

Geophysical Research Letters
We use Columbia Glacier as a case study to demonstrate how seismically cataloged calving events in Alaska can track glacier evolution over two decades. By combining this catalog—a serendipitous byproduct of earthquake monitoring—with terminus positions ...
Sebin John, Michael E. West, Martin Truffer   +2 more
doaj   +1 more source

Ice Front and Mélange Dynamics at Kangerlussuaq Glacier, Eastern Greenland, Since 1981, and Future Stability

Geophysical Research Letters
Calving is a critical factor in the dynamics of marine‐terminating glaciers, yet its long‐term behavior remains poorly understood. Existing models calibrate calving parameters with decadal observational periods and assume they remain constant ...
E. Y. H. Lippert, M. Morlighem, G. Cheng, D. L. Berg, J. Hassan, S. A. Khan   +5 more
doaj   +1 more source

Horizontal force-balance calving laws: Ice shelves, marine- and land-terminating glaciers

Journal of Glaciology
Predicting calving in glacier models is challenging, as observations of diverse calving styles appear to contradict a universal calving law. Here, we generalize and apply the analytical Horizontal Force-Balance fracture model from ice shelves to land ...
Niall Bennet Coffey, Ching-Yao Lai
doaj   +1 more source

Amplified Arctic iceberg traffic reshapes benthic biodiversity. [PDF]

Nature
Krumpen T, Meyer-Kaiser KS, Wekerle C, Ackermann L, Castle D, Bergmann M, Hoppmann M, Khan SA, Purser A, Schmithüsen H.   +9 more
europepmc   +1 more source

Sequence of events that led to the South Lhonak lake outburst flood in Sikkim, India. [PDF]

Sci Rep
Mohanty LK, Gantayat P, Dixit A, Das Adhikari M, Biswas R, Singh VK.   +5 more
europepmc   +1 more source

Ice-marginal proglacial lakes enhance outlet glacier velocities across Greenland. [PDF]

Commun Earth Environ
Harpur CM, Smith MW, Carrivick JL, Quincey DJ, Taylor L.   +4 more
europepmc   +1 more source

Thirty years of glacier grounding line retreat in Antarctica. [PDF]

Proc Natl Acad Sci U S A
Rignot E, Scheuchl B, Barre JB, Brancato V, Charrier L, Chen H, Ciraci E, Dinh A, Herreid S, Jeong S, Li X, Mitchell T, Mohajerani Y, Shamsian S, Tolpekin V, Velicogna I, Wollersheim M.   +16 more
europepmc   +1 more source