Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Some Data Points on Shoreline Retreat Attributable to Coastal Subsidence
Coastal subsidence increases flooding in low lying coastal regions. Moreover, it disturbs the equilibrium profile, and allows waves to erode bluffs formerly above the reach of wave uprush. Ensuing adjustment of the profile drives the shoreline farther landward. Guidance is needed for obtaining quantitative estimates of the shore's response. The mean surface elevation of Lake Michigan rose 0.5 meter during a recent 4-year period. Concurrently, major elements of the submerged profile responded by building upward and migrating 26 meters landward. Approximately 8 meters of beach were lost due to submergence beneath the elevated lake surface; and an additional 6 to 7 meters were lost due to erosion. The shoreline, however, lagged behind the rest of the profile in adjusting to the higher water levels.
Some Data Points on Shoreline Retreat Attributable to Coastal Subsidence
Coastal subsidence increases flooding in low lying coastal regions. Moreover, it disturbs the equilibrium profile, and allows waves to erode bluffs formerly above the reach of wave uprush. Ensuing adjustment of the profile drives the shoreline farther landward. Guidance is needed for obtaining quantitative estimates of the shore's response. The mean surface elevation of Lake Michigan rose 0.5 meter during a recent 4-year period. Concurrently, major elements of the submerged profile responded by building upward and migrating 26 meters landward. Approximately 8 meters of beach were lost due to submergence beneath the elevated lake surface; and an additional 6 to 7 meters were lost due to erosion. The shoreline, however, lagged behind the rest of the profile in adjusting to the higher water levels.
Some Data Points on Shoreline Retreat Attributable to Coastal Subsidence
E. B. Hands (Autor:in)
1978
19 pages
Report
Keine Angabe
Englisch
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