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Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data

Contemporary Universiti Teknologi Malaysia 2020 Mean Sea Surface (UTM20 MSS) and Mean Dynamic Topography (UTM20 MDT) models around Malaysian seas are introduced in this study. These regional models are computed via scrutinizing along-track sea surface height (SSH) points and specific interpolation m...

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Main Authors: Hamden, Mohammad Hanif, Md. Din, Ami Hassan, Wijaya, Dudy Darmawan, Mohd. Yusoff, Yunus, Pa’suya, Muhammad Faiz
Format: Article
Language:English
Published: Frontiers Media S.A. 2021
Subjects:
TH434-437 Quantity surveying
Online Access:http://eprints.utm.my/id/eprint/28845/1/MohammadHanifHamden2021_RegionalMeanSeaSurfaceandMean.pdf
http://eprints.utm.my/id/eprint/28845/
http://dx.doi.org/10.3389/feart.2021.665876
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spelling my.utm.288452022-02-28T13:25:32Z http://eprints.utm.my/id/eprint/28845/ Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data Hamden, Mohammad Hanif Md. Din, Ami Hassan Wijaya, Dudy Darmawan Mohd. Yusoff, Yunus Pa’suya, Muhammad Faiz TH434-437 Quantity surveying Contemporary Universiti Teknologi Malaysia 2020 Mean Sea Surface (UTM20 MSS) and Mean Dynamic Topography (UTM20 MDT) models around Malaysian seas are introduced in this study. These regional models are computed via scrutinizing along-track sea surface height (SSH) points and specific interpolation methods. A 1.5-min resolution of UTM20 MSS is established by integrating 27 years of along-track multi-mission satellite altimetry covering 1993–2019 and considering the 19-year moving average technique. The Exact Repeat Mission (ERM) collinear analysis, reduction of sea level variability of geodetic mission (GM) data, crossover adjustment, and data gridding are presented as part of the MSS computation. The UTM20 MDT is derived using a pointwise approach from the differences between UTM20 MSS and the local gravimetric geoid. UTM20 MSS and MDT reliability are validated with the latest Technical University of Denmark (DTU) and Collecte Localisation Services (CLS) models along with coastal tide gauges. The findings presented that the UTM20, CLS15, and DTU18 MSS models exhibit good agreement. Besides, UTM20 MDT is also in good agreement with CLS18 and DTU15 MDT models with an accuracy of 5.1 and 5.5 cm, respectively. The results also indicate that UTM20 MDT statistically achieves better accuracy than global models compared to tide gauges. Meanwhile, the UTM20 MSS accuracy is within 7.5 cm. These outcomes prove that UTM20 MSS and MDT models yield significant improvement compared to the previous regional models developed by UTM, denoted as MSS1 and MSS2 in this study. Frontiers Media S.A. 2021-09-09 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/28845/1/MohammadHanifHamden2021_RegionalMeanSeaSurfaceandMean.pdf Hamden, Mohammad Hanif and Md. Din, Ami Hassan and Wijaya, Dudy Darmawan and Mohd. Yusoff, Yunus and Pa’suya, Muhammad Faiz (2021) Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data. Frontiers in Earth Science, 9 . pp. 1-16. ISSN 2296-6463 http://dx.doi.org/10.3389/feart.2021.665876 DOI:10.3389/feart.2021.665876
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TH434-437 Quantity surveying
spellingShingle TH434-437 Quantity surveying
Hamden, Mohammad Hanif
Md. Din, Ami Hassan
Wijaya, Dudy Darmawan
Mohd. Yusoff, Yunus
Pa’suya, Muhammad Faiz
Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
description Contemporary Universiti Teknologi Malaysia 2020 Mean Sea Surface (UTM20 MSS) and Mean Dynamic Topography (UTM20 MDT) models around Malaysian seas are introduced in this study. These regional models are computed via scrutinizing along-track sea surface height (SSH) points and specific interpolation methods. A 1.5-min resolution of UTM20 MSS is established by integrating 27 years of along-track multi-mission satellite altimetry covering 1993–2019 and considering the 19-year moving average technique. The Exact Repeat Mission (ERM) collinear analysis, reduction of sea level variability of geodetic mission (GM) data, crossover adjustment, and data gridding are presented as part of the MSS computation. The UTM20 MDT is derived using a pointwise approach from the differences between UTM20 MSS and the local gravimetric geoid. UTM20 MSS and MDT reliability are validated with the latest Technical University of Denmark (DTU) and Collecte Localisation Services (CLS) models along with coastal tide gauges. The findings presented that the UTM20, CLS15, and DTU18 MSS models exhibit good agreement. Besides, UTM20 MDT is also in good agreement with CLS18 and DTU15 MDT models with an accuracy of 5.1 and 5.5 cm, respectively. The results also indicate that UTM20 MDT statistically achieves better accuracy than global models compared to tide gauges. Meanwhile, the UTM20 MSS accuracy is within 7.5 cm. These outcomes prove that UTM20 MSS and MDT models yield significant improvement compared to the previous regional models developed by UTM, denoted as MSS1 and MSS2 in this study.
format Article
author Hamden, Mohammad Hanif
Md. Din, Ami Hassan
Wijaya, Dudy Darmawan
Mohd. Yusoff, Yunus
Pa’suya, Muhammad Faiz
author_facet Hamden, Mohammad Hanif
Md. Din, Ami Hassan
Wijaya, Dudy Darmawan
Mohd. Yusoff, Yunus
Pa’suya, Muhammad Faiz
author_sort Hamden, Mohammad Hanif
title Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
title_short Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
title_full Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
title_fullStr Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
title_full_unstemmed Regional mean sea surface and mean dynamic topography models around Malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
title_sort regional mean sea surface and mean dynamic topography models around malaysian seas developed from 27 years of along-track multi-mission satellite altimetry data
publisher Frontiers Media S.A.
publishDate 2021
url http://eprints.utm.my/id/eprint/28845/1/MohammadHanifHamden2021_RegionalMeanSeaSurfaceandMean.pdf
http://eprints.utm.my/id/eprint/28845/
http://dx.doi.org/10.3389/feart.2021.665876
_version_ 1726791439991439360
score 13.211869

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