Some considerations on coastal processes relevant to sea level rise

Mehta, Ashish J. and Dean, Robert G. and Dally, William R. and Montague, Clay L. (1987) Some considerations on coastal processes relevant to sea level rise. Gainesville, FL, Coastal and Oceanographic Engineering Department, University of Florida, (UFL/COEL, 87/012)

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The effects of potential sea level rise on the shoreline and shore environment have been briefly examined by considering the interactions between sea level rise and relevant coastal processes. These interactions have been reviewed beginning with a discussion of the need to reanalyze previous estimates of eustatic sea level rise and compaction effects in water level measurement. This is followed by considerations on sea level effects on coastal and estuarine tidal ranges, storm surge and water level response, and interaction with natural and constructed shoreline features. The desirability to reevaluate the well known Bruun Rule for estimating shoreline recession has been noted. The mechanics of ground and surface water intrusion with reference to sea level rise are then reviewed. This is followed by sedimentary processes in the estuaries including wetland response. Finally comments are included on some probable effects of sea level rise on coastal ecosystems. These interactions are complex and lead to shoreline evolution (under a sea level rise) which is highly site-specific. Models which determine shoreline change on the basis of inundation of terrestrial topography without considering relevant coastal processes are likely to lead to erroneous shoreline scenarios, particularly where the shoreline is composed of erodible sedimentary material. With some exceptions, present day knowledge of shoreline response to hydrodynamic forcing is inadequate for long-term quantitative predictions. A series of interrelated basic and applied research issues must be addressed in the coming decades to determine shoreline response to sea level change with an acceptable degree of confidence. (PDF contains 189 pages.)

Item Type: Monograph or Serial Issue
Title: Some considerations on coastal processes relevant to sea level rise
Personal Creator/Author:
Mehta, Ashish J.
Dean, Robert G.
Dally, William R.
Montague, Clay L.
Series Name: UFL/COEL
Number: 87/012
Date: 1987
Publisher: Coastal and Oceanographic Engineering Department, University of Florida
Place of Publication: Gainesville, FL
Issuing Agency: Oceanographic Engineering Program, Department of Civil and Coastal Engineering, University of Florida
Additional Information: Sponsor Oak Ridge National Laboratory P.O. Box X Oak Ridge, TN 37831
Uncontrolled Keywords: Coastal ecosystems; Coastal processes; Sea level rise; Estuarine sedimentation; Coasts
Subjects: Oceanography
Item ID: 1477
Depositing User: Stephanie Haas
Date Deposited: 28 Sep 2008 13:07
Last Modified: 29 Sep 2011 20:30

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