Melt-under-cutting and buoyancy-driven calving from tidewater glaciers: new insights from discrete element and continuum model simulations [PDF]
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 +7 more
doaj +6 more sources
A century of variation in the dependence of Greenland iceberg calving on ice sheet surface mass balance and regional climate change. [PDF]
Iceberg calving is a major component of the total mass balance of the Greenland ice sheet (GrIS). A century-long record of Greenland icebergs comes from the International Ice Patrol's record of icebergs (I48N) passing latitude 48° N, off Newfoundland ...
Bigg GR +6 more
europepmc +3 more sources
BREAK OUT OF A-76 ICEBERG AND RECENT DYNAMIC CHANGES OF ITS ENCOLSURE RIFTS IN RONNE ICE SHELF, ANTARCTICA [PDF]
Monitoring the stability of the Ronne Ice Shelf, particularly the calving event, is an integral and important part of the study of Antarctic ice sheet mass balance and sea-level rise. This paper presents the results of the analysis of the world’s largest
A. Zhao +15 more
doaj +1 more source
Automated ArcticDEM iceberg detection tool: insights into area and volume distributions, and their potential application to satellite imagery and modelling of glacier–iceberg–ocean systems [PDF]
Iceberg calving accounts for up to half of mass loss from the Greenland Ice Sheet (GrIS), with their size distributions providing insights into glacier calving dynamics and impacting fjord environments through their melting and subsequent freshwater ...
C. J. Shiggins, J. M. Lea, S. Brough
doaj +1 more source
Fragmentation theory reveals processes controlling iceberg size distributions
Iceberg calving strongly controls glacier mass loss, but the fracture processes leading to iceberg formation are poorly understood due to the stochastic nature of calving.
Jan Åström +5 more
doaj +1 more source
Iceberg Calving: Regimes and Transitions
Uncertainty about sea-level rise is dominated by uncertainty about iceberg calving, mass loss from glaciers or ice sheets by fracturing. Review of the rapidly growing calving literature leads to a few overarching hypotheses. Almost all calving occurs near or just downglacier of a location where ice flows into an environment more favorable for calving ...
R.B. Alley +8 more
openaire +1 more source
Identification of iceberg-forming ice quakes from seismic and infrasound data
The application of a joint method of recording seismic and infrasound signals generated during ice calving from the terminal part of the outlet glaciers to identify the process of iceberg formation is considered.
Yu. A. Vinogradov +4 more
doaj +1 more source
Quasi-static granular flow of ice mélange [PDF]
We use Landsat 8 imagery to generate ice mélange velocity fields at Greenland’s three most productive outlet glaciers: Jakobshavn Isbræ, Helheim Glacier, and Kangerdlugssuaq Glacier.
Amundson, Jason M., Burton, J. C.
core +2 more sources
Two Calving Laws for Grounded Iceberg-Calving Glaciers (Abstract only) [PDF]
Prediction of the future retreat of Columbia Glacier, Alaska, required a calving law for the boundary condition at the terminus. Qualitative observations on the variations of all major iceberg-calving glaciers of Alaska suggest that calving is high whenever glaciers terminate in deep water, and greatly reduced whenever they terminate in shallow water ...
C. S. Brown +4 more
openaire +1 more source
Automatic delineation of cracks with Sentinel-1 interferometry for monitoring ice shelf damage and calving [PDF]
Monitoring the evolution of ice shelf damage such as crevasses and rifts is important for a better understanding of the mechanisms controlling the breakup of ice shelves and for improving predictions about iceberg calving and ice shelf disintegration ...
L. Libert, J. Wuite, T. Nagler
doaj +1 more source

