Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Breakup of Antarctic fast ice
AbstractThe fast ice cover in McMurdo Sound, Antarctica, is subjected to numerous mechanical processes which are capable of inducing breakup. Thermal decay plays only a minor role in the destruction of the ice cover, making this region ideal for studying mechanical breakup processes without the complications caused by melting and internal deterioration. A previously developed thermodynamic ice-growth model is used to predict temporal changes in the physical properties of the ice sheet relevant to breakup, allowing the susceptibility of the ice to different destructive processes to be assessed on a seasonal basis. The analyses indicate that during most of the year wind-induced tensile failure is the only likely mode of fracture, while during the short summer period ocean swell incident on the fast ice edge becomes dominant. The importance of the pack ice cover in the Ross Sea in controlling breakup by attenuating potentially destructive ocean swell is clearly shown, and is in agreement with previous qualitative studies of fast ice breakup.
Breakup of Antarctic fast ice
AbstractThe fast ice cover in McMurdo Sound, Antarctica, is subjected to numerous mechanical processes which are capable of inducing breakup. Thermal decay plays only a minor role in the destruction of the ice cover, making this region ideal for studying mechanical breakup processes without the complications caused by melting and internal deterioration. A previously developed thermodynamic ice-growth model is used to predict temporal changes in the physical properties of the ice sheet relevant to breakup, allowing the susceptibility of the ice to different destructive processes to be assessed on a seasonal basis. The analyses indicate that during most of the year wind-induced tensile failure is the only likely mode of fracture, while during the short summer period ocean swell incident on the fast ice edge becomes dominant. The importance of the pack ice cover in the Ross Sea in controlling breakup by attenuating potentially destructive ocean swell is clearly shown, and is in agreement with previous qualitative studies of fast ice breakup.
Breakup of Antarctic fast ice
Crocker, G.B. (Autor:in) / Wadhams, P. (Autor:in)
Cold Regions, Science and Technology ; 17 ; 61-76
05.02.1989
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
The breakup of shore fast sea ice
| Elsevier | 1992
| NTIS | 1988
| British Library Conference Proceedings | 1993