Regional shoreline change and coastal erosion hazards in Arctic Alaska
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Abstract
Historical shoreline positions along the mainland Beaufort Sea coast of Alaska were digitized and analyzed to determine the long-term rate of change. Average shoreline change rates and ranges from 1947 to the mid-2000s were determined every 50 meters between Barrow and Demarcation Point, at the U.S.-Canadian border. Results show that shoreline change rates are highly variable along the coast, with an average regional shoreline change rate of-2.0 m/yr and localized rates of up to -19 m/yr. The highest erosion rates were observed at headlands, points, and associated with breached thermokarst lakes. Areas of accretion were limited, and generally associated with spit extension and minor beach accretion. In general, erosion rates increase from east to west, with overall higher rates east of Harrison Bay.
Study Area
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Regional shoreline change and coastal erosion hazards in Arctic Alaska |
| ISBN | 9780784411858 |
| DOI | 10.1061/41185(417)24 |
| Year Published | 2011 |
| Language | English |
| Contributing office(s) | Pacific Coastal and Marine Science Center |
| Description | 15 p. |
| Larger Work Type | Conference Paper |
| Larger Work Subtype | Conference Paper |
| Larger Work Title | Solutions to Coastal Disasters 2011 - Proceedings of the 2011 Solutions to Coastal Disasters Conference |
| First page | 258 |
| Last page | 272 |
| Conference Title | 2011 Solutions to Coastal Disasters Conference |
| Conference Location | Anchorage, AK |
| Conference Date | June 25-29, 2011 |
| Country | United States |
| State | Alaska |
| Other Geospatial | Beaufort Sea coast |
| Google Analytic Metrics | Metrics page |