Results 61 to 70 of about 51,075 (190)

Understanding of an Iceberg Breaking Off Event Based on Ice-Front Motion Analysis of Amery Ice Shelf, Antarctica

open access: yesRemote Sensing, 2021
On 26 September 2019, a massive iceberg broke off the west side of the Amery Ice Shelf (AIS) in East Antarctica. Since 1973, the AIS calving front has steadily advanced at a rate of 1.0 km yr−1. However, the advancement rate of the central portion of the
Zhaohui Chi, Andrew Klein
doaj   +1 more source

Circumpolar Effects of a Velocity‐Restoring Scheme for Antarctic Fast Ice on Shelf Waters and Ice Shelf Melt Simulated by NEMO4‐SI3

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Dense water formation in the Southern Ocean plays a key role in the global ocean overturning circulation, affecting the distribution of heat, carbon, oxygen, and nutrients. Fast ice stays immobile while blocking sea ice flow, favoring the opening of coastal polynyas, where intense air‐sea exchanges drive sea ice production and ocean ...
N. Pirlet   +4 more
wiley   +1 more source

Reassessing the Role of the Antarctic Slope Current in Poleward Ocean Heat Transport

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract The Antarctic Slope Current (ASC) is often considered a barrier to the poleward transport of Circumpolar Deep Water (CDW), yet its vast extent has hindered circumpolar analysis of this relationship. Here, we use a high‐resolution global ocean‐sea ice model that resolves the slope current to assess the link between variability in the ASC and ...
Wilton Aguiar   +7 more
wiley   +1 more source

Calving giant icebergs: old principles, new applications

open access: yesAntarctic Science, 2006
Earth-orbiting satellites can now monitor calving of large icebergs from ice shelves bordering the marine West Antarctic Ice Sheet, and recent calving events have stimulated interest in calving mechanisms. To advance this interest pioneering work in brittle and ductile fracture mechanics is reviewed, leading to a new application to calving of giant ...
Kenneally, James P., Huges, Terence J.
openaire   +3 more sources

The life cycle of small- to medium-sized icebergs in the Amundsen Sea Embayment

open access: yesPolar Research, 2019
An object-based method for automatic iceberg detection has been applied to Advanced Synthetic Aperture Radar images in the Amundsen Sea Embayment (ASE), Antarctica.
Aleksandra K. Mazur   +2 more
doaj   +1 more source

Baffin Bay Freshwater Content Seasonal Variability and Budget: A Modeling Approach

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Baffin Bay plays a significant role as an exporter of freshwater from the Arctic to the North Atlantic. However, we still do not completely understand how this freshwater is stored and transformed within the bay before it exits. Here, we use a six‐member ensemble built using the Nucleus for European Modelling of the Ocean (NEMO)—at 1/4 ...
L. H. Oliveira da Silva   +2 more
wiley   +1 more source

New Technique Reveals Iceberg Calving Process

open access: yesEos, 2017
Researchers used unmanned aerial vehicle data to model the growth of a fracture that broke a 1-kilometer-long iceberg off a Greenland glacier.
openaire   +1 more source

Combining SAR images with an iceberg drift model for improving mass loss estimations caused by iceberg calving - a case study [PDF]

open access: yes, 2012
Recent estimations of mass loss caused by iceberg calving are limited to huge icebergs (>18.5km edge length) or are spatially limited. Since the 1970s, the course of huge icebergs is permanently tracked using satellite images by the National Ice Center ...
Rackow, Thomas   +2 more
core   +1 more source

Scalable Phase‐Field Implementation of Crack Evolution (SPICE) for Modeling Surface Crevasse Growth and Interaction in Glaciers

open access: yesJournal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract Iceberg calving driven by crevasse propagation is an important source of ice loss from the Greenland and Antarctic ice sheets. However, simulating crevasse growth and interaction in 3D, spanning meters to kilometers length scales, remains computationally challenging for high‐fidelity models based on nonlocal continuum damage mechanics and ...
Abhinav Gupta   +4 more
wiley   +1 more source

Three-dimensional modelling of calving processes on Johnsons Glacier, Livingston Island, Antarctica. [PDF]

open access: yes, 2010
Iceberg calving is an important mass loss mechanism from ice shelves and tidewater glaciers for many mid and high-latitude glaciers and ice caps, yet the process is not well represented in prognostic models of ice dynamics.
Martin, Carlos   +4 more
core  

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