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Cyclical Behavior of Sea Level and Bruun’s Rule

Explore the factors driving sea level cycles and Bruun's Rule, a coastal response theory. Learn about projections and assess the effectiveness of Bruun's Rule in managing rising sea levels.

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Cyclical Behavior of Sea Level and Bruun’s Rule

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  1. What drives the cyclical behavior of sea level? Link to a nice animation: http://www.wwnorton.com/college/geo/egeo/animations/ch18.htm

  2. Projections of future sea levels

  3. Coastal Response - Bruun’s Rule

  4. Bruun’s Rule Assumptions With rising sea level, the upper beach is eroded due to the landward translation of the profile. The material eroded from the upper beach is deposited immediately offshore - the eroded and deposited volumes are equal. Nearshore bottom level rise is equal to sea level rise, maintaining a steady offshore water depth through time.

  5. How well does the Bruun Rule work?

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