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Erosion and accretion along the arctic coast of Alaska. The influence of ice and climate

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Abstract

Coastline comparison on 1951 and 1981 charts to determine erosion and accretion showed that ocean-facing coastal bluffs were retreating while deltas were rapidly expanding. Where the coast is fronted by a lagoon, and coast-parallel sand and gravel islands, bluff retreat was reduced. The extensive bluff erosion was volumetrically balanced by accretion at the mouths of deltas. Coastal erosion is driven by ice-related processes, aided by the presence of an ice-eroded shelf. Rapid delta expansion is interpreted to have begun in the last 200 years, perhaps related to observed permafrost warming.

Additional Publication Details

Publication type:
Conference Paper
Publication Subtype:
Conference Paper
Title:
Erosion and accretion along the arctic coast of Alaska. The influence of ice and climate
ISBN:
0872628086
Year Published:
1991
Language:
English
Publisher:
Publ by ASCE
Publisher location:
New York, NY, United States
Larger Work Title:
Coastal Sediments '91; Volume 2
First page:
1518
Last page:
1531
Number of Pages:
14
Conference Title:
Proceedings of a Specialty Conference on Quantitative Approaches to Coastal Sediment Processes
Conference Location:
Seattle, WA, USA
Conference Date:
25 June 1991 through 27 June 1991