Results 141 to 150 of about 120,471 (247)

Icequakes coupled with surface displacements for predicting glacier break-off

, 2010
A hanging glacier at the east face of Weisshorn (Switzerland) broke off in 2005. We were able to monitor and measure surface motion and icequake activity for 25 days up to three days prior to the break-off.
Allen, Anifrani, Didier Sornette, Jérome Faillettaz, Kuksenko, Lüthi, Martin Funk, O’Neel, Raymond, Röthlisberger, Sammis, Sornette, Sornette, Sornette   +13 more
core   +1 more source

Dense shelf water production in the Adélie Depression, East Antarctica, 2004–2012: Impact of the Mertz Glacier calving

, 2014
Summer repeated hydrographic surveys and 4 years of mooring observations are used to characterize for the first time the interannual variability of the bottom water in the Mertz Glacier Polynya (MGP) on the East Antarctic shelf (142°E–146°E). Until 2010,
M. Lacarra, M. Houssais, C. Herbaut, E. Sultan, M. Beauverger   +4 more
semanticscholar   +1 more source

Grounding Zone of Helheim Glacier, Greenland, From Terrestrial Radar Interferometry

Geophysical Research Letters
Helheim Glacier, in East Greenland, is a major outlet glacier that discharges about 33 Gigatons of ice per year into the ocean. Helheim has been undergoing a retreat since 2003.
Jae Hun Kim, Eric Rignot, Hanning Chen, David Holland, Denise Holland   +4 more
doaj   +1 more source

Modeling the Controls on the Front Position of a Tidewater Glacier in Svalbard

Frontiers in Earth Science, 2017
Calving is an important mass-loss process at ice sheet and marine-terminating glacier margins, but identifying and quantifying its principal driving mechanisms remains challenging.
Jaime Otero, Francisco J. Navarro, Javier J. Lapazaran, Ethan Welty, Darek Puczko, Roman Finkelnburg   +5 more
doaj   +1 more source

Calving as a Source of Acute and Persistent Kinetic Energy to Enhance Submarine Melting of Tidewater Glaciers

Geophysical Research Letters
Calving icebergs at tidewater glaciers release large amounts of potential energy. This energy—in principle—could be a source for submarine melting, which scales with near‐terminus water temperature and velocity.
M. F. Shaya, J. D. Nash, E. C. Pettit, J. M. Amundson, R. H. Jackson, D. A. Sutherland, D. Winters   +6 more
doaj   +1 more source

Remote Sensing Risk Assessment of Valdez Glacier Lake [PDF]

, 2012
Can remote sensing techniques be used to determine the probability of an outburst from the Valdez Glacier Lake, and to detect downstream areas affected by a possible glacier lake outburst ...
Soederstroem, Erik
core  

A Novel Approach to Automated Mapping Subweekly Calving Front of Petermann Glacier (2016–2023)—Using Sentinel-2 Satellite Data and Segment Anything Model (SAM)

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Monitoring glacier calving fronts is critical for understanding ice dynamics and their response to climate change. However, existing methods of mapping ice calving front face limitations in temporal resolution and positional accuracy, hindering effective
Daan Li, Liming Jiang, Shun Cai, Ronggang Huang, Xi Lu   +4 more
doaj   +1 more source

Insights From Two Decades of Seismicity at Columbia Glacier

Geophysical Research Letters
We use Columbia Glacier as a case study to demonstrate how seismically cataloged calving events in Alaska can track glacier evolution over two decades. By combining this catalog—a serendipitous byproduct of earthquake monitoring—with terminus positions ...
Sebin John, Michael E. West, Martin Truffer   +2 more
doaj   +1 more source

The Grounding of an Ice Shelf in the Central Arctic Ocean: A Modeling Experiment [PDF]

, 2003
A numerical ice sheet model was used in a first test towards evaluating the hypothesis that, during a period of large-scale glaciation, an ice shelf emanating from the Barents/Kara Seas grounded across parts of the Lomonosov Ridge to a depth of around ...
Jakobsson, Martin, Paton, Mark, Siegert, M   +2 more
core   +1 more source

Calibrating an ice sheet model using high-dimensional binary spatial data

, 2016
Rapid retreat of ice in the Amundsen Sea sector of West Antarctica may cause drastic sea level rise, posing significant risks to populations in low-lying coastal regions.
Applegate, Patrick, Chang, Won, Haran, Murali, Pollard, David   +3 more
core   +2 more sources