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dc.contributor.authorColeman, John Benjamin
dc.date.accessioned2014-03-04T18:18:34Z
dc.date.available2014-03-04T18:18:34Z
dc.date.issued2009-08
dc.identifier.othercoleman_john_b_200908_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/coleman_john_b_200908_ms
dc.identifier.urihttp://hdl.handle.net/10724/25772
dc.description.abstractThe mapping of coral reefs may be efficiently accomplished by the use of airborne laser bathymetry. However, there are often data holes within the bathymetry data which must be filled in order to produce a complete representation of the coral habitat. This study presents a method to fill these data holes through data merging and interpolation. We first merge ancillary digital sounding data with airborne laser bathymetry data of Dry Tortugas National Park, Florida. What follows is to generate an elevation surface of topography under the sea by spatial interpolation based on the dataset obtained in the first step. Four interpolation techniques, including Kriging, natural neighbor, spline and inverse distance weighted, are implemented and evaluated on their ability to accurately and realistically represent the shallow-water bathymetry of the study area. The natural neighbor technique is found to be the most effective qualitatively with a root mean square error of 3.8 meters. This enhanced digital elevation model is used in conjunction with Ikonos imagery to produce a complete, three-dimensional visualization of the study area.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectAirborne laser bathymetry
dc.subjectDigital elevation model
dc.subjectDry Tortugas
dc.subjectInterpolation
dc.subjectKriging
dc.subjectCoral reef
dc.titleHoles in the ocean
dc.title.alternativefilling data voids in bathymetric lidar : a case study in Dry Tortugas National Park, Florida
dc.typeThesis
dc.description.degreeMS
dc.description.departmentGeography
dc.description.majorGeography
dc.description.advisorXiaobai Yao
dc.description.committeeXiaobai Yao
dc.description.committeeMarguerite Madden
dc.description.committeeThomas Jordan


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