Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter

Upwelling is a vital ocean behaviour, especially for the Fisheries Industry, where upwelling will help to detect fish ground at a particular ocean area. However, the study of upwelling is minimal and not well understood due to some reasons and constraints, such as limited observation. Upwelling lack...

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Main Authors: Dolhan, A. R., Din, A. H. M., Pa’suya, M. F., Hamden, M. H., Uti, M. N.
Format: Article
Language:English
Published: Akademi Sains Malaysia 2021
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Online Access:http://eprints.utm.my/id/eprint/96331/1/DolhanAR2021_AnalysisofUpwellingEventsintheSouthernSouthChinaSea.pdf
http://eprints.utm.my/id/eprint/96331/
http://dx.doi.org/10.32802/ASMSCJ.2021.632
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spelling my.utm.963312022-07-17T07:41:21Z http://eprints.utm.my/id/eprint/96331/ Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter Dolhan, A. R. Din, A. H. M. Pa’suya, M. F. Hamden, M. H. Uti, M. N. GC Oceanography Upwelling is a vital ocean behaviour, especially for the Fisheries Industry, where upwelling will help to detect fish ground at a particular ocean area. However, the study of upwelling is minimal and not well understood due to some reasons and constraints, such as limited observation. Upwelling lacks a comprehensive in-situ observation system where it relies on limited information collected from the ground-truthing execution such as ships, buoys, and current meter. This study aims to analyse the upwelling pattern in the southern region of the South China Sea by using a multi-mission satellite altimeter. In order to derive the physical oceanography that involves upwelling, such as sea surface height (SSH), Mean Dynamic Topography (MDT), and the Sea Level Anomaly (SLA), the Radar Altimeter Database System is used. Five Satellite Altimeter mission is used in this study, which is JASON-2, JASON-3, CYROSAT2, SARAL, SENTINAL3A from 2013 to 2017. Validation is made using a statistical method showing a good correlation between Altimetry data and Tidal Data at tide gauge, which is 0.84 to 0.97, respectively. Also, monthly altimetry derived Geostrophic Current was assessed by analysing the current pattern where it shows a similarity with a previous study where the current velocity is 0.5ms-1 to 2ms-1. From the result, eddies can be seen in the seasonal and monthly Absolute Geostrophic Ocean Current (AGOC) map, indicating the present presence of upwelling. In conclusion, this study will benefit other researchers in terms of both upwelling and eddy studies. Akademi Sains Malaysia 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/96331/1/DolhanAR2021_AnalysisofUpwellingEventsintheSouthernSouthChinaSea.pdf Dolhan, A. R. and Din, A. H. M. and Pa’suya, M. F. and Hamden, M. H. and Uti, M. N. (2021) Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter. ASM Science Journal, 16 . pp. 1-15. ISSN 1823-6782 http://dx.doi.org/10.32802/ASMSCJ.2021.632
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 GC Oceanography
spellingShingle GC Oceanography
Dolhan, A. R.
Din, A. H. M.
Pa’suya, M. F.
Hamden, M. H.
Uti, M. N.
Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
description Upwelling is a vital ocean behaviour, especially for the Fisheries Industry, where upwelling will help to detect fish ground at a particular ocean area. However, the study of upwelling is minimal and not well understood due to some reasons and constraints, such as limited observation. Upwelling lacks a comprehensive in-situ observation system where it relies on limited information collected from the ground-truthing execution such as ships, buoys, and current meter. This study aims to analyse the upwelling pattern in the southern region of the South China Sea by using a multi-mission satellite altimeter. In order to derive the physical oceanography that involves upwelling, such as sea surface height (SSH), Mean Dynamic Topography (MDT), and the Sea Level Anomaly (SLA), the Radar Altimeter Database System is used. Five Satellite Altimeter mission is used in this study, which is JASON-2, JASON-3, CYROSAT2, SARAL, SENTINAL3A from 2013 to 2017. Validation is made using a statistical method showing a good correlation between Altimetry data and Tidal Data at tide gauge, which is 0.84 to 0.97, respectively. Also, monthly altimetry derived Geostrophic Current was assessed by analysing the current pattern where it shows a similarity with a previous study where the current velocity is 0.5ms-1 to 2ms-1. From the result, eddies can be seen in the seasonal and monthly Absolute Geostrophic Ocean Current (AGOC) map, indicating the present presence of upwelling. In conclusion, this study will benefit other researchers in terms of both upwelling and eddy studies.
format Article
author Dolhan, A. R.
Din, A. H. M.
Pa’suya, M. F.
Hamden, M. H.
Uti, M. N.
author_facet Dolhan, A. R.
Din, A. H. M.
Pa’suya, M. F.
Hamden, M. H.
Uti, M. N.
author_sort Dolhan, A. R.
title Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
title_short Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
title_full Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
title_fullStr Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
title_full_unstemmed Analysis of upwelling events in the southern South China Sea using multi-mission satellite altimeter
title_sort analysis of upwelling events in the southern south china sea using multi-mission satellite altimeter
publisher Akademi Sains Malaysia
publishDate 2021
url http://eprints.utm.my/id/eprint/96331/1/DolhanAR2021_AnalysisofUpwellingEventsintheSouthernSouthChinaSea.pdf
http://eprints.utm.my/id/eprint/96331/
http://dx.doi.org/10.32802/ASMSCJ.2021.632
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score 13.209306