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Measuring Seafloor Displacement Usin...

DeSanto, John B.

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Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys./
Author:	DeSanto, John B.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	138 p.
Notes:	Source: Dissertations Abstracts International, Volume: 80-07, Section: B.
Contained By:	Dissertations Abstracts International80-07B.
Subject:	Geophysics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10978975
ISBN:	9780438758704

Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys.
DeSanto, John B.

Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 138 p.

Source: Dissertations Abstracts International, Volume: 80-07, Section: B.

Thesis (Ph.D.)--University of California, San Diego, 2018.

This item must not be sold to any third party vendors.

The purpose of this thesis is to propose and develop a novel tool for measuring seafloor displacement using repeated sidescan sonar surveys, a data set that is collected alongside multibeam bathymetry. Chapter 1 presents the motivation for this study and introduces the work done in subsequent chapters. Chapter 2 is a brief overview of the design and underlying physics of the multibeam sonar, and presents a discussion on the uncertainties introduced by errors in the sound velocity profile. Chapter 3 presents the processing method for measuring seafloor displacement from sidescan sonar in detail, and tests this method by measuring synthetic displacements introduced into legacy multibeam data. Chapter 4 presents data collected in calibration surveys during the RR1605 and SR1704 cruises meant to test this method. We find displacements measurements with RMS uncertainties less than 0.5 m under optimal survey designs involving speeds less than 6 knots, kinematic post-processed ship navigation, and frequent measurements of the sound velocity profile. Chapter 5 demonstrates the improvement in ship positioning obtained when performing kinematic post-processing on the raw ship navigation data rather than relying on the real-time navigation solution.

ISBN: 9780438758704Subjects--Topical Terms:

535228
Geophysics.

Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys.
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245 1 0 $a Measuring Seafloor Displacement Using Repeated Sidescan Sonar Surveys.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 138 p.
500 $a Source: Dissertations Abstracts International, Volume: 80-07, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Sandwell, David T.
502 $a Thesis (Ph.D.)--University of California, San Diego, 2018.
506 $a This item must not be sold to any third party vendors.
520 $a The purpose of this thesis is to propose and develop a novel tool for measuring seafloor displacement using repeated sidescan sonar surveys, a data set that is collected alongside multibeam bathymetry. Chapter 1 presents the motivation for this study and introduces the work done in subsequent chapters. Chapter 2 is a brief overview of the design and underlying physics of the multibeam sonar, and presents a discussion on the uncertainties introduced by errors in the sound velocity profile. Chapter 3 presents the processing method for measuring seafloor displacement from sidescan sonar in detail, and tests this method by measuring synthetic displacements introduced into legacy multibeam data. Chapter 4 presents data collected in calibration surveys during the RR1605 and SR1704 cruises meant to test this method. We find displacements measurements with RMS uncertainties less than 0.5 m under optimal survey designs involving speeds less than 6 knots, kinematic post-processed ship navigation, and frequent measurements of the sound velocity profile. Chapter 5 demonstrates the improvement in ship positioning obtained when performing kinematic post-processing on the raw ship navigation data rather than relying on the real-time navigation solution.
590 $a School code: 0033.
650 4 $a Geophysics. $3 535228
650 4 $a Physical oceanography. $3 3168433
690 $a 0373
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710 2 $a University of California, San Diego. $b Oceanography. $3 1019111
773 0 $t Dissertations Abstracts International $g 80-07B.
790 $a 0033
791 $a Ph.D.
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793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10978975