Results 51 to 60 of about 522,209 (193)

Calving glaciers and ice shelves [PDF]

Advances in Physics: X, 2018
Calving, or the release of icebergs from glaciers and floating ice shelves, is an important process transferring mass into the world’s oceans. Calving glaciers and ice sheets make a large contribution to sea-level rise, but large uncertainty remains about future ice sheet response to alternative carbon scenarios.
Douglas I. Benn, Jan A. Åström
openaire   +3 more sources

Data initiatives for ocean-driven melt of Antarctic ice shelves [PDF]

, 2022
Ocean-driven melt of Antarctic ice shelves is an important control on mass loss from the ice sheet, but is complex to study due to significant variability in melt rates both spatially and temporally. Here we assess the strengths and weakness of satellite
Vaňková, Irena, Cook, Sue, Nicholls, Keith W., Galton-Fenzi, Benjamin K., Thompson, Sarah S., Sarah S. Thompson, Sue Cook, Irena Vaňková, Benjamin K. Galton-Fenzi, Keith W. Nicholls   +9 more
core   +1 more source

Treatment of the ice-shelf backpressure and buttressing in two horizontal dimensions

Journal of Glaciology
The ice discharge from the grounded parts of marine ice sheets into the ocean is modulated by their floating extensions – ice shelves. The ice-shelf impact on the grounded ice is typically described as ‘backpressure’ or ‘buttressing’.
Olga Sergienko
doaj   +1 more source

A physically based calving model applied to marine outlet glaciers and implications for the glacier dynamics [PDF]

, 2010
We present results from numerical ice-flow models that include calving criteria based on penetration of surface and basal crevasses, which in turn is a function of longitudinal strain rates near the glacier front.
Vieli, Andreas, Nick, Faezeh M, van der Veen, C.J., Vieli, A., Benn, Douglas, Benn, Douglas D.I., van der Veen, Cornelis, C.J. Van Der Veen, Benn, Doug I, Nick, Faezeh, Afd Marine and Atmospheric Research, F.M. Nick, Marine and Atmospheric Research, Van der Veen, C J, Benn, Douglas I, A. Vieli, Venn, D. I., van der Veen, C. J., Benn, D.I., Nick, F.M., Nick, F. M., Van der Veen, Cornelis J., D.I. Benn, Benn, Doug I; id_orcid   +23 more
core   +1 more source

Formation, Flow, and Disintegration Of Ice Shelves

, 1979
Ice shelves may develop either by continued thickening of sea ice that is held fast to the shore, or by the seaward extension of inland ice. For both processes, as well as for an understanding of ablation and of accumulation at the bottom surface of ice ...
G. De Q. Robin
core   +2 more sources

Simulating ice-shelf extent using damage mechanics

Journal of Glaciology, 2022
Inaccurate representations of iceberg calving from ice shelves are a large source of uncertainty in mass-loss projections from the Antarctic ice sheet. Here, we address this limitation by implementing and testing a continuum damage-mechanics model in a ...
Samuel B. Kachuck, Morgan Whitcomb, Jeremy N. Bassis, Daniel F. Martin, Stephen F. Price   +4 more
doaj   +1 more source

Antarctic masks (ice-shelves, ice-sheet, and islands), link to shape file

, 2013
Antarctic masks (ice-shelves, ice-sheet, and islands), link to shape ...
Michiel R van den Broeke (6967277), Mathieu A Depoorter (8004866), Geir Moholdt (6716393), Jan T M Lenaerts (8004872), van den Broeke, Michiel R, Jonathan L Bamber (7969874), Bamber, Jonathan L, Griggs, Jennifer, Jennifer Griggs (8004869), Depoorter, Mathieu A, Ligtenberg, Stefan R M, Stefan R M Ligtenberg (6967271), Lenaerts, Jan T M, Moholdt, Geir   +13 more
core   +1 more source

Sea-Ice Mass Balance Influenced by Ice Shelves [PDF]

, 2012
Sea ice fastened to coasts, icebergs and ice shelves is of crucial importance for climateand ecosystems. At the same time, it is not represented in climate models and many processes affecting its energy- and mass balance are currently only poorly ...
Nicolaus, Marcel, Hoppmann, Mario, Willmes, Sascha, Paul, Stephan, Heinemann, Günther, Timmermann, Ralph   +5 more
core   +1 more source

Activation of Existing Surface Crevasses Has Limited Impact on Grounding Line Flux of Antarctic Ice Streams

Geophysical Research Letters, 2023
Recent studies have identified widespread vulnerable ice shelf regions in Antarctica which are both highly buttressed and susceptible to crevasse hydrofracturing, raising concern for potential crevasse driven ice‐shelf collapse and future sea level rise.
C. Gerli, S. Rosier, G. H. Gudmundsson
doaj   +1 more source

Corrected ICESat altimetry data, surface mass balance, and firn elevation change on Antarctic ice shelves

, 2012
Accurate prediction of global sea-level rise requires that we understand the cause of recent, widespread and intensifying glacier acceleration along Antarctic ice-sheet coastal margins.
Hamish D Pritchard (6967268), Michiel R van den Broeke (6967277), David G Vaughan (7906517), Pritchard, Hamish D, Padman, Laurie, Fricker, Helen, Ligtenberg, Stefan R M, Stefan R M Ligtenberg (6967271), Laurie Padman (6967283), Helen Fricker (6967274), van den Broeke, Michiel R, Vaughan, David G   +11 more
core   +1 more source