Results 61 to 70 of about 564 (174)

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

Polar 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, Anna K. Wåhlin, Ola Kalén   +2 more
doaj   +1 more source

Glacier monitoring using real-aperture 94 GHz radar

Annals of Glaciology, 2022
Close-range sensors are employed to observe glaciological processes that operate over short timescales (e.g. iceberg calving, glacial lake outburst floods, diurnal surface melting).
William D. Harcourt, Duncan A. Robertson, David G. Macfarlane, Brice R. Rea, Matteo Spagnolo, Douglas I. Benn, Mike R. James   +6 more
doaj   +1 more source

The Response of the Global Overturning Circulation to Recent and Projected Antarctic Meltwater Changes

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The Antarctic ice sheet and ice shelves are losing mass and release freshwater to the ocean, affecting the ocean state. The response of ocean circulation to recent and projected increases in Antarctic meltwater is still uncertain, because of uncertainties in meltwater forcing and deficiencies in global ocean and climate models. Here, we use an
Birte Gülk, Casimir de Lavergne, Jean‐Baptiste Sallée, Gurvan Madec, Clément Rousset, Anna Olivé Abelló, Violaine Coulon   +6 more
wiley   +1 more source

Simulating iceberg calving

Understanding the physics of iceberg calving is a holy grail problem of glaciology. Progress on this problem has been slow in part because simulating any system with an evolving geometry is a major challenge. We have developed new approaches to simulating glacier flow with evolving termini, including both iceberg calving and the advance and retreat of ...
MAURER, JONATHAN, Shapero, Daniel
openaire   +1 more source

Ecological consequences of a massive iceberg calving in Antarctica

, 2023
Dans le cadre de la théorie d'évolution des traits d'histoire de vie, l'allocation de l'énergie aux différentes fonctions des organismes au cours des différentes activités clés de leur cycle annuel revêt un caractère essentiel. Ainsi, la stratégie énergétique d'un animal longévif doit lui permettre de faire face aux contraintes extrêmes imposées par l ...
Meheust, Yann, Michelot, Candice, Bloch, Theodore, Delord, Karine, Barbraud, Christophe, Bost, Charles - André, Ropert‐coudert, Yan, Kato, Akiko, Raclot, Thierry   +8 more
openaire   +1 more source

Calving giant icebergs: old principles, new applications

Antarctic 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

Dynamic Deglacial Evolution of Interior Seaways and Ice Streams in the Weddell Sea Embayment

Paleoceanography and Paleoclimatology, Volume 41, Issue 7, July 2026.
Abstract Improving our understanding of Antarctic glacial dynamics is essential for accurately predicting ice sheet behavior and its contribution to global sea level rise under future climate scenarios. The Weddell Sea Embayment, which channels ice from East Antarctica, West Antarctica, and the Antarctic Peninsula into the Filchner‐Ronne Ice Shelf, is ...
M. R. Bollen, M. Gutjahr, P. Blaser, C. E. Ginnane, J. P. Klages, J. Müller, J. C. Turnbull, S. L. Jaccard   +7 more
wiley   +1 more source

Assessment of the feed additive consisting of zinc chelate of amino acids hydrate (3b606) for all animal species for the renewal of its authorisation (Zinpro Animal Nutrition (Europe), Inc.)

EFSA Journal, Volume 24, Issue 7, July 2026.
Abstract Following a request from the European Commission, the EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the assessment of the application for renewal of authorisation of zinc chelate of amino acids hydrate as a feed additive for all animal species.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Giovanna Martelli, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Katerina Theodoridou, Jaume Galobart, Maria Vittoria Vettori, Paola Manini, Alberto Navarro Villa, Fabiola Pizzo, Piera Valeri   +22 more
wiley   +1 more source

New Technique Reveals Iceberg Calving Process

Eos, 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

Reduced West Antarctic Ice Sheet Size During Prominent Quaternary Interglacials Constrained by Iceberg‐Rafted Debris Provenance in the Amundsen Sea

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The stability of the West Antarctic Ice Sheet (WAIS) remains a major uncertainty in sea‐level projections, and geologic records provide important constraints on its past behavior. We present 40Ar/39Ar ages of biotite and hornblende grains from iceberg‐rafted debris (IRD) in two Amundsen Sea sediment cores (PC493 and PS58/254), located south ...
Patric Simões Pereira, Claus‐Dieter Hillenbrand, Sidney R. Hemming, James W. Marschalek, Rob Larter, James A. Smith, Gerhard Kuhn, Tina van de Flierdt   +7 more
wiley   +1 more source