Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina

Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina

Bibliographic Details
Main Author: Taylor, Rachel Marie
Language:English
Published: Wright State University / OhioLINK 2012
Subjects:
Geophysics
LIDAR
coastline
self-affine
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=wright1357263024
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-wright13572630242021-08-03T05:20:49Z Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina Taylor, Rachel Marie Geophysics LIDAR coastline self-affine <p>The signal of shoreline change for the Outer Banks, North Carolina is non-stationary. A baseline, west of the first line of dunes, is created for each 5 km section and shore-perpendicular profiles constructed every 20 meters in the alongshore direction. The profiles are obtained from two light detection and ranging (LIDAR) surveys performed in June 22, 2006 and July 7 and 8, 2007.</p><p>For five selected sections of coast, Fourier analysis of the shoreline change signal indicates the signal is self-affine i.e. the mean is not stationary, but changes with position along the signal (Malumud and Turcotte, 1999) with a scaling exponent that varies from 1.2 to 2.1. Four of the five selected sections of coast, Wavelet analysis of the shoreline change signal indicate the signal is self-affine with a scaling exponent that varies from 1.4 to 2.3. </p><p>The power scaling exponents extend over three orders of magnitude in length from 0.1 to 10 km. </p><p>The values of the power scaling exponent (greater than 1) indicate that the signal has no characteristic length scale and is non-stationary as the power scaling increases, low-frequency (high period) contributions dominate over high-frequency (low period) contributions. The range in power scaling exponents indicates that abrupt changes in shoreline position are less common than gradual changes over long distances (Malamud and Turcotte, 1999).</p> 2012 English text Wright State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=wright1357263024 http://rave.ohiolink.edu/etdc/view?acc_num=wright1357263024 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Geophysics
LIDAR
coastline
self-affine
spellingShingle Geophysics
LIDAR
coastline
self-affine
Taylor, Rachel Marie
Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
author Taylor, Rachel Marie
author_facet Taylor, Rachel Marie
author_sort Taylor, Rachel Marie
title Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
title_short Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
title_full Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
title_fullStr Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
title_full_unstemmed Change in Shoreline Position for Two Consecutive Years Using LIDAR Along the Outer Banks, North Carolina
title_sort change in shoreline position for two consecutive years using lidar along the outer banks, north carolina
publisher Wright State University / OhioLINK
publishDate 2012
url http://rave.ohiolink.edu/etdc/view?acc_num=wright1357263024
work_keys_str_mv AT taylorrachelmarie changeinshorelinepositionfortwoconsecutiveyearsusinglidaralongtheouterbanksnorthcarolina
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