Results 81 to 90 of about 564 (174)

Greenland Ice Sheet's Distinct Calving Styles Are Identified in Terminus Change Timeseries

Geophysical Research Letters
At least three primary iceberg calving styles have been identified in Greenland: serac collapse, which produces falling icebergs tens of meters in length; slab capsize, which produces rotating icebergs hundreds of meters in length; and tabular rifting ...
Chris Bézu, Timothy C. Bartholomaus
doaj   +1 more source

Massive Antarctic Icebergs May Calve at Random

Eos
The first analysis of extreme calving events in Antarctica finds no correlation with climate change, highlighting the significance of common, smaller calving events for ice loss and instability.
openaire   +1 more source

A viscoelastic phase-field model for iceberg calving

Iceberg calving accounts for around half of the ice lost annually from Antarctica, but realistic representation of fracture and calving in large-scale ice sheet models remains a major unsolved problem in glaciology. We present a new phase-field viscoelastic model for fracture that simulates the slow deformation of ice and the distribution and evolution
Robert Arthern, Jakub Stocek, Oliver Marsh   +2 more
openaire   +2 more sources

Subcritical crack propagation as a mechanism of crevasse formation and iceberg calving [PDF]

Journal of Glaciology, 2004
AbstractRecent investigations of crevassing on alpine glaciers and ice shelves have been based on linear elastic fracture mechanics (LEFM). However, LEFM is unable to explain some aspects of crevasse formation such as the initiation of crevasse propagation from crystal-scale (mm) microcracks, the slow propagation of large fractures in ice shelves, and ...
openaire   +1 more source

Brief communication: Rapid acceleration of the Brunt Ice Shelf after calving of iceberg A-81 [PDF]

The Cryosphere
The Brunt Ice Shelf, Antarctica, accelerated rapidly from a velocity of 900 to 1500 m a−1 during 6 months, following calving of a 1500 km2 iceberg on 22 January 2023.
O. J. Marsh, A. J. Luckman, D. A. Hodgson   +2 more
doaj   +1 more source

The integrated ice sheet response to stochastic iceberg calving

Journal of Glaciology
Abstract Iceberg calving is a major source of ice loss from the Antarctic and Greenland ice sheets. However, it is still one of the most poorly understood aspects of ice sheet dynamics, in part due to its variability at a wide range of spatial and temporal scales.
Aminat A. Ambelorun, Alexander A. Robel
openaire   +2 more sources

Geographical distribution and volume of Antarctic icebergs derived from ship observation data

Annals of Glaciology, 2017
Information on the occurrence, spatial distribution and morphometric characteristics of Antarctic icebergs is needed in a large number of applications including navigation, heat and freshwater balance calculations, biochemistry of the ocean and ...
Yury A. Romanov, Nina A. Romanova, Peter Romanov   +2 more
doaj   +1 more source

Impact of varying solar angles on Arctic iceberg area retrieval from Sentinel-2 near-infrared data

Annals of Glaciology
Icebergs are part of the glacial mass balance and they interact with the ocean and with sea ice. Optical satellite remote sensing is often used to retrieve the above-waterline area of icebergs.
Henrik Fisser, Anthony P. Doulgeris, Knut V. Høyland   +2 more
doaj   +1 more source

Numerical Simulation of Tsunamis Generated by Iceberg Calving [PDF]

38th IAHR World Congress - "Water: Connecting the World", 2019
FAN CHEN, VALENTIN HELLER, RICCARDO BRIGANTI   +2 more
openaire   +1 more source

Rapid iceberg calving following removal of tightly packed pro-glacial mélange. [PDF]

Nat Commun, 2019
Xie S, Dixon TH, Holland DM, Voytenko D, Vaňková I.   +4 more
europepmc   +1 more source