Results 61 to 70 of about 5,053 (213)

Tracking icebergs with time-lapse photography and sparse optical flow, LeConte Bay, Alaska, 2016–2017 [PDF]

, 2019
We present a workflow to track icebergs in proglacial fjords using oblique time-lapse photos and the Lucas-Kanade optical flow algorithm. We employ the workflow at LeConte Bay, Alaska, where we ran five time-lapse cameras between April 2016 and ...
Amundson, Jason M., Dryer, William P., Jackson, Rebecca H., Kienholz, Christian, Mickett, John B., Motyka, Roman J., Nash, Jonathan D., Sutherland, David A., Truffer, Martin, Winters, Dylan S.   +9 more
core   +2 more sources

Juvenile predation overwhelms nutritional effects on female ungulate fat reserves in a high‐predation system

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ungulate body fat reserves reflect the nutritional environment, often serving as a useful indicator of bottom‐up resource availability. However, body fat reserves also integrate energetic costs associated with avoiding predation risk and reproductive effort, and it is ...
Nicole P. Bealer, Mark Hebblewhite, Sara H. Williams, Jodi E. Berg, Hans W. Martin, Evelyn H. Merrill   +5 more
wiley   +1 more source

Icebergs, jigsaw puzzles, and genealogy: automated multi-generational iceberg tracking and lineage reconstruction [PDF]

The Cryosphere
Tabular icebergs calve from ice shelves and glaciers in Antarctica, Greenland, and northern Ellesmere Island. These “ice islands”, as they are referred to in the Arctic, drift, melt, and fragment, contributing freshwater and nutrients to the ocean ...
B. R. Evans, A. R. Lowe, A. Crawford, A. Fleming, J. S. Hosking, J. S. Hosking   +5 more
doaj   +1 more source

The northern sector of the last British ice sheet : maximum extent and demise [PDF]

, 2008
Strongly divided opinion has led to competing, apparently contradictory, views on the timing, extent, flow configuration and decay mechanism of the last British Ice Sheet.
Bradwell, Tom, Stoker, Martyn, Golledge, Nicholas, Wilson, Christian Kverneland, Merritt, Jon, Long, David, Everest, Jeremy, Hestvik, O.B., Stevenson, Alan, Hubbard, Alun, Finlayson, Andrew, Mathers, Hannah   +11 more
core   +2 more sources

The Influence of Sea Ice and Ice Mélange on Outlet Glacier Dynamics in the Arctic and Antarctic: Recent Progress and Future Challenges

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Sea ice is situated close to the termini of many outlet glaciers in the Arctic and Antarctic and has the potential to influence their dynamics and, therefore, their contribution to sea level rise. However, the nature, prevalence, and ice‐dynamic significance of sea ice‐glacier interactions remains subject to several open questions.
Katherine A. Deakin, Chris R. Stokes, Stewart S. R. Jamieson, J. Rachel Carr   +3 more
wiley   +1 more source

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

Remote 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

Meltwater Intrusions Reveal Mechanisms for Rapid Submarine Melt at a Tidewater Glacier [PDF]

, 2019
Submarine melting has been implicated as a driver of glacier retreat and sea level rise, but to date melting has been difficult to observe and quantify. As a result, melt rates have been estimated from parameterizations that are largely unconstrained by ...
Amundson, Jason M., Jackson, R. H., Kienholtz, C., Motyka, R. J., Nash, J. D., Pettit, E. C., Skyllingstad, E., Sutherland, D. A., Winters, D.   +8 more
core   +1 more source

The Role of Ice‐Rafted Debris (IRD) on Icebergs' Deterioration

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract During the last ice age, icebergs transported Ice‐Rafted Debris (IRD) more than 3,000 km across the North Atlantic. However, their effect on the deterioration of icebergs and thus where the deposits form is poorly understood. Laboratory experiments and a predictive model (with no fitting parameters) investigating the effects of sediment on ...
Nash Ward, Claudia Cenedese, Jim N. McElwaine, Alan Condron   +3 more
wiley   +1 more source

Greenland iceberg melt variability from high-resolution satellite observations [PDF]

The Cryosphere, 2018
Iceberg discharge from the Greenland Ice Sheet accounts for up to half of the freshwater flux to surrounding fjords and ocean basins, yet the spatial distribution of iceberg meltwater fluxes is poorly understood.
E. M. Enderlin, E. M. Enderlin, C. J. Carrigan, W. H. Kochtitzky, W. H. Kochtitzky, A. Cuadros, T. Moon, G. S. Hamilton, G. S. Hamilton, G. S. Hamilton   +9 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