Results 71 to 80 of about 918 (177)

SWOT High‐Rate Raster Data Reveals Antarctic Ice Shelf Motion and Change in Response to Ocean and Ice Dynamics

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The NASA/CNES Surface Water and Ocean Topography (SWOT) swath‐mapping radar altimetry satellite mission, launched in December 2022, provides repeat‐track coverage to about ±78.2° latitude every 21 days, sampling many of Antarctica's most dynamic ice shelves that play key roles in constraining mass loss from the grounded ice sheet ...
S. L. Howard, Z. S. Katz, L. Padman, M. R. Siegfried, E. Abrahams, T. M. Snow   +5 more
wiley   +1 more source

Three Decades of Glacial Changes on the Western Antarctic Peninsula Revealed by Historical Aerial and High‐Resolution Satellite Imagery

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Antarctic Peninsula has been climate‐sensitive since the mid‐20th century, but long‐term glacier mass balance data are scarce. This study uses historical aerial and high‐resolution satellite imagery to estimate mass changes on the western Antarctic Peninsula (66°S $66{}^{\circ}\mathrm{S}$–68°S $68{}^{\circ}\mathrm{S}$) from 1989 to 2020 ...
Vijaya Kumar Thota, Thorsten Seehaus, Matthias H. Braun   +2 more
wiley   +1 more source

Detection of Glacier Calving Margins with Convolutional Neural Networks: A Case Study

Remote Sensing, 2019
The continuous and precise mapping of glacier calving fronts is essential for monitoring and understanding rapid glacier changes in Antarctica and Greenland, which have the potential for significant sea level rise within the current century.
Yara Mohajerani, Michael Wood, Isabella Velicogna, Eric Rignot   +3 more
doaj   +1 more source

Effects of undercutting and sliding on calving: a global approach applied to Kronebreen, Svalbard [PDF]

The Cryosphere, 2018
In this paper, we study the effects of basal friction, sub-aqueous undercutting and glacier geometry on the calving process by combining six different models in an offline-coupled workflow: a continuum–mechanical ice flow model (Elmer/Ice), a climatic
D. Vallot, J. Åström, T. Zwinger, R. Pettersson, A. Everett, D. I. Benn, A. Luckman, A. Luckman, W. J. J. van Pelt, F. Nick, J. Kohler   +10 more
doaj   +1 more source

Mass Loss From Thwaites Glacier Continues Even Without Ocean Melting

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Pine Island and Thwaites glaciers dominate Antarctica's sea‐level contribution. However, it remains unclear whether their ice loss is driven by anomalously warm present‐day ocean conditions, perhaps linked to anthropogenic climate change, or are an ongoing response to historical natural climate anomalies.
C. Rosie Williams, Matt Trevers, Sainan Sun, Paul R. Holland, David T. Bett, Robert J. Arthern, Alexander T. Bradley   +6 more
wiley   +1 more source

Detection of glacier calving events from time-lapse images using computer vision and a neural network

Journal of Glaciology
Ground-based time-lapse cameras are often used to monitor glacier recession, which is primarily driven by the falling of ice from the glacier front, known as iceberg calving or, more commonly, calving events.
Lakhan Mankani, Oskar Glowacki, William A.P. Smith, Paulina Lewińska   +3 more
doaj   +1 more source

Quantification of Heat and Salt Budgets in the Western Ross Ice Shelf Cavity and Polynya System

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract The Ross Ice Shelf Polynya (RISP) is one of the primary production sites of the High Salinity Shelf Water (HSSW), the precursor of Antarctic Bottom Water (AABW) that drives the lower limb of global meridional overturning circulation. Utilizing a multi‐platform historical data set gathered over the western Ross Sea continental shelf, this study
Chuning Wang, Zhaoru Zhang, Meng Zhou
wiley   +1 more source

Ground‐Truthed Fiber‐Optic Sensing Reveals Internal Tide Bores Over Madeira's Steep Slope

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract We demonstrate the combined utility of distributed acoustic sensing (DAS) and repeat conductivity‐temperature‐depth (CTD) profiling for observing internal tide dynamics over a sloping seafloor. While DAS has been widely proposed as a method to infer ocean temperature variability from seafloor cables, quantitative in situ validation has been ...
Matthew H. Alford, Mohammad Belal, Alberto C. Naveira Garabato, Carl Spingys, Gunnar Voet, Oleg A. Godin, Ernst M. Uzhansky, Jennifer Ward Neale, Jesus Reis, Afonso Loureiro   +9 more
wiley   +1 more source

A spatial analysis workflow to derive landscape‐scale conservation management information from GPS‐monitored grazing livestock

Ecological Solutions and Evidence, Volume 7, Issue 3, July–September 2026.
This study presents a spatial analysis workflow for using satellite telemetry data to understand livestock movement and habitat selection in conservation grazing contexts, using GPS‐tracked cattle on the Purbeck Heaths National Nature Reserve as a case study.
Tom Major, Antonio Uzal, Ross A. Hill, Anita Diaz   +3 more
wiley   +1 more source

Calving dynamics at Jakobshavn Isbrae (Sermeq Kujalleq) controlled by local geometry: insights from a 3D Stokes calving model

Journal of Glaciology
We present the first simulations of Jakobshavn Isbrae (Sermeq Kujalleq), west Greenland, using a 3D Stokes calving model that permits unrestricted advance and retreat.
Iain Wheel, Anna J. Crawford, Douglas I. Benn   +2 more
doaj   +1 more source