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Barrier Island Dynamics Using Mass Center Analysis: A New Way to Detect and Track Large-Scale Change
AbstractA geographic information system (GIS) was used to introduce and test a new method for quantitatively characterizing topographic change. Borrowing from classic Newtonian mechanics, the concept of a body’s center of mass is applied to the geomorphic landscape, and the barrier island environment in particular, to evaluate the metric’s potential as a proxy for detecting, tracking and visualizing change. Two barrier islands along North Carolina’s Outer Banks are used to test this idea: Core Banks, uninhabited and largely-undeveloped, and Hatteras Island, altered by the presence of a protective dune system. Findings indicate that for Core Banks, the alongshore change in the center of mass is in accord with dominate littoral transport and wind conditions. Cross-shore change agrees with independent estimates for the island migration rates. This lends credence to our assertion that the mass center metric has the potential to be a viable proxy for describing wholesale barrier migration and would be a valuable addition to the already-established ocean shoreline and subaerial volume metrics. More research is, however, required to demonstrate efficacy.
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Paris, P.; Mitasova, H. Barrier Island Dynamics Using Mass Center Analysis: A New Way to Detect and Track Large-Scale Change. ISPRS Int. J. Geo-Inf. 2014, 3, 49-65.View more citation formats
Paris P, Mitasova H. Barrier Island Dynamics Using Mass Center Analysis: A New Way to Detect and Track Large-Scale Change. ISPRS International Journal of Geo-Information. 2014; 3(1):49-65.Chicago/Turabian Style
Paris, Paul; Mitasova, Helena. 2014. "Barrier Island Dynamics Using Mass Center Analysis: A New Way to Detect and Track Large-Scale Change." ISPRS Int. J. Geo-Inf. 3, no. 1: 49-65.
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