Satellite-derived bathymetry for shallow water hydrographic mapping

Satellite-Derived Bathymetry (SDB), a new method which derives bathymetric data from multi-spectral satellite imagery, has yet to be recognised as a new acquisition method for shallow water hydrographic survey mapping. Currently, SDB has received substantial attention from researchers worldwide, but...

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Main Author:	Md. Said, Najhan
Format:	Thesis
Language:	English
Published:	2018
Subjects:	NA Architecture
Online Access:	http://eprints.utm.my/id/eprint/81769/1/NajhanMdSaidPFAB2018.pdf
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id	my-utm-ep.81769
record_format	uketd_dc
spelling	my-utm-ep.817692019-09-22T07:26:36Z Satellite-derived bathymetry for shallow water hydrographic mapping 2018 Md. Said, Najhan NA Architecture Satellite-Derived Bathymetry (SDB), a new method which derives bathymetric data from multi-spectral satellite imagery, has yet to be recognised as a new acquisition method for shallow water hydrographic survey mapping. Currently, SDB has received substantial attention from researchers worldwide, but most of the studies primarily focused on remote sensing environments. The questions about precision and accuracy are always the subject of interest in the surveying field but went unreported in most of the studies. Hence, this study aims to develop an improved SDB algorithm model which is capable of delivering better accuracy for shallow water hydrographic survey mapping application in a tropical environment. High resolution multi-spectral satellite imageries from the Sentinel-2A, Pleiades and WorldView-2 of Tawau Port, Sabah and Pulau Kuraman, Labuan were derived. Both places have diverse seabed topography parameters. A conceptual model of Multi-Layer Optimisation Technique (M-LOT) was developed based on Stumpf derivation model. Accuracy assessment of M-LOT was carried out against derivation models of Lyzenga and Sumpf. Two types of accuracy assessment were involved: Statistical Assessment and International Hydrographic Organization (IHO) Survey Standard evaluation. The findings showed M-LOT model managed to achieve up to 1.800m and 1.854m Standard Deviation (SD) accuracy for Tawau Port and Pulau Kuraman respectively. In addition, M-LOT has shown a better derivation compared to Stumpf’s, where a total of 13.1% more depth samples meeting the IHO minimum standard for Tawau Port. Furthermore, M-LOT has generated an extensive increment up to 46.1% depths samples meeting the IHO minimum standard for Pulau Kuraman. In conclusion, M-LOT has significantly shown improved accuracy compared to Stumpf, which can offer a solution for SDB method in shallow-water hydrographic survey mapping application. 2018 Thesis http://eprints.utm.my/id/eprint/81769/ http://eprints.utm.my/id/eprint/81769/1/NajhanMdSaidPFAB2018.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:126528 phd doctoral Universiti Teknologi Malaysia Built Environment
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	NA Architecture
spellingShingle	NA Architecture Md. Said, Najhan Satellite-derived bathymetry for shallow water hydrographic mapping
description	Satellite-Derived Bathymetry (SDB), a new method which derives bathymetric data from multi-spectral satellite imagery, has yet to be recognised as a new acquisition method for shallow water hydrographic survey mapping. Currently, SDB has received substantial attention from researchers worldwide, but most of the studies primarily focused on remote sensing environments. The questions about precision and accuracy are always the subject of interest in the surveying field but went unreported in most of the studies. Hence, this study aims to develop an improved SDB algorithm model which is capable of delivering better accuracy for shallow water hydrographic survey mapping application in a tropical environment. High resolution multi-spectral satellite imageries from the Sentinel-2A, Pleiades and WorldView-2 of Tawau Port, Sabah and Pulau Kuraman, Labuan were derived. Both places have diverse seabed topography parameters. A conceptual model of Multi-Layer Optimisation Technique (M-LOT) was developed based on Stumpf derivation model. Accuracy assessment of M-LOT was carried out against derivation models of Lyzenga and Sumpf. Two types of accuracy assessment were involved: Statistical Assessment and International Hydrographic Organization (IHO) Survey Standard evaluation. The findings showed M-LOT model managed to achieve up to 1.800m and 1.854m Standard Deviation (SD) accuracy for Tawau Port and Pulau Kuraman respectively. In addition, M-LOT has shown a better derivation compared to Stumpf’s, where a total of 13.1% more depth samples meeting the IHO minimum standard for Tawau Port. Furthermore, M-LOT has generated an extensive increment up to 46.1% depths samples meeting the IHO minimum standard for Pulau Kuraman. In conclusion, M-LOT has significantly shown improved accuracy compared to Stumpf, which can offer a solution for SDB method in shallow-water hydrographic survey mapping application.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Md. Said, Najhan
author_facet	Md. Said, Najhan
author_sort	Md. Said, Najhan
title	Satellite-derived bathymetry for shallow water hydrographic mapping
title_short	Satellite-derived bathymetry for shallow water hydrographic mapping
title_full	Satellite-derived bathymetry for shallow water hydrographic mapping
title_fullStr	Satellite-derived bathymetry for shallow water hydrographic mapping
title_full_unstemmed	Satellite-derived bathymetry for shallow water hydrographic mapping
title_sort	satellite-derived bathymetry for shallow water hydrographic mapping
granting_institution	Universiti Teknologi Malaysia
granting_department	Built Environment
publishDate	2018
url	http://eprints.utm.my/id/eprint/81769/1/NajhanMdSaidPFAB2018.pdf
_version_	1747818409595240448

Satellite-derived bathymetry for shallow water hydrographic mapping

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