SEA-ICE INFLUENCE ON ARCTIC COASTAL RETREAT.
By: Erk Reimnitz and P. W. Barnes
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Abstract
Recent studies document the effectiveness of sea ice in reshaping the seafloor of the inner shelf into sharp-relief features, including ice gouges with jagged flanking ridges, ice-wallow relief, and 2- to 6-m-deep strudel-scour craters. These ice-related relief forms are in disequilibrium with classic open-water hydraulic processes and thus are smoothed over by waves and currents in one to two years. Such alternate reworking of the shelf by ice and currents - two diverse types of processes, which in the case of ice wallow act in unison-contributes to sediment mobility and, thus, to sediment loss from the coast and inner shelf. The bulldozing action by ice results in coast-parallel sediment displacement. Additionally, suspension of sediment by frazil and anchor ice, followed by ice rafting, can move large amounts of bottom-derived materials. Our understanding of all these processes is insufficient to model Arctic coastal processes.
Suggested Citation
Reimnitz, E., Barnes, P.W., 1987, SEA-ICE INFLUENCE ON ARCTIC COASTAL RETREAT., Coastal Sediments '87, Proceedings of a Specialty Conference on Advances in Understanding of Coastal Sediment Processes., v. 2, New Orleans, LA, USA, p. 1578-1591.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | SEA-ICE INFLUENCE ON ARCTIC COASTAL RETREAT. |
| Volume | 2 |
| Year Published | 1987 |
| Language | English |
| Publisher | ASCE |
| Publisher location | New York, NY, USA |
| First page | 1578 |
| Last page | 1591 |
| Conference Title | Coastal Sediments '87, Proceedings of a Specialty Conference on Advances in Understanding of Coastal Sediment Processes. |
| Conference Location | New Orleans, LA, USA |