Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery

Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery

Nearshore depths for Waimanalo Beach, HI, are extracted from optical imagery, taken by the WorldView-2 satellite on 31 March 2011, by means of automated wave kinematics bathymetry (WKB). Two sets of three sequential images taken at intervals of about 10 seconds are used for the analyses herein. Wate...

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Main Author: Mancini, Steven
Other Authors: Olsen, Richard C.
Published: Monterey, California. Naval Postgraduate School 2012
Online Access:http://hdl.handle.net/10945/6826
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spelling ndltd-nps.edu-oai-calhoun.nps.edu-10945-68262015-08-06T16:02:48Z Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery Mancini, Steven Olsen, Richard C. MacMahan, Jamie Space Systems Operations Nearshore depths for Waimanalo Beach, HI, are extracted from optical imagery, taken by the WorldView-2 satellite on 31 March 2011, by means of automated wave kinematics bathymetry (WKB). Two sets of three sequential images taken at intervals of about 10 seconds are used for the analyses herein. Water depths are calculated using a computer program that registers the images, estimates the currents, and then uses the linear dispersion relationship for surface gravity waves to estimate depth. Depths are generated from close to shore out to about 20 meters depth. Comparisons with SHOALS LIDAR bathymetry values show WKB depths are accurate to about half a meter, with R2 values of 90%, and are frequently in the range of 1020 percent relative error for depths ranging from 216 meters. 2012-05-14T18:55:53Z 2012-05-14T18:55:53Z 2012-03 Thesis http://hdl.handle.net/10945/6826 Monterey, California. Naval Postgraduate School
collection NDLTD
sources NDLTD
description Nearshore depths for Waimanalo Beach, HI, are extracted from optical imagery, taken by the WorldView-2 satellite on 31 March 2011, by means of automated wave kinematics bathymetry (WKB). Two sets of three sequential images taken at intervals of about 10 seconds are used for the analyses herein. Water depths are calculated using a computer program that registers the images, estimates the currents, and then uses the linear dispersion relationship for surface gravity waves to estimate depth. Depths are generated from close to shore out to about 20 meters depth. Comparisons with SHOALS LIDAR bathymetry values show WKB depths are accurate to about half a meter, with R2 values of 90%, and are frequently in the range of 1020 percent relative error for depths ranging from 216 meters.
author2 Olsen, Richard C.
author_facet Olsen, Richard C.
Mancini, Steven
author Mancini, Steven
spellingShingle Mancini, Steven
Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
author_sort Mancini, Steven
title Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
title_short Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
title_full Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
title_fullStr Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
title_full_unstemmed Automating Nearshore Bathymetry Extraction from Wave Motion in Satellite Optical Imagery
title_sort automating nearshore bathymetry extraction from wave motion in satellite optical imagery
publisher Monterey, California. Naval Postgraduate School
publishDate 2012
url http://hdl.handle.net/10945/6826
work_keys_str_mv AT mancinisteven automatingnearshorebathymetryextractionfromwavemotioninsatelliteopticalimagery
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