Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia
The determination of the maritime boundary is related to the selection of the tidal datum used in relation to the zero-depth reference. This research was conducted to determine the impact of the zero-depth reference that has been used, the Mean Low Water Spring (MLWS), against the zero-depth recomme...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Egyptian Journal of Aquatic Research |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1687428523000444 |
| _version_ | 1797388876624429056 |
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| author | Eka Djunarsjah Candida A.D.S. Nusantara Andika P. Putra Riko A. Wijaya Sehat S. Sianturi Nofal M.K. Anantri Difa Kusumadewi Miga M. Julian |
| author_facet | Eka Djunarsjah Candida A.D.S. Nusantara Andika P. Putra Riko A. Wijaya Sehat S. Sianturi Nofal M.K. Anantri Difa Kusumadewi Miga M. Julian |
| author_sort | Eka Djunarsjah |
| collection | DOAJ |
| description | The determination of the maritime boundary is related to the selection of the tidal datum used in relation to the zero-depth reference. This research was conducted to determine the impact of the zero-depth reference that has been used, the Mean Low Water Spring (MLWS), against the zero-depth recommended by the International Hydrographic Organization (IHO), the Lowest Astronomical Tide (LAT). Tidal data is obtained from BIG's tidal station processing, while the MLWS value data is obtained from a combination of analysis from the Hydrographic Office of Indonesia (Pushidros). Based on these data, it is found that 25 out of 37 tidal stations indicate that the LAT value is below the MLWS in its vertical position. This shows that sea boundary claims can potentially be shifted by changing the zero-depth reference from the original by switching from MLWS to LAT. Lastly, this study presents the benefits of implementing the vertical system reference recommended by the IHO, the LAT, as an international chart datum. |
| first_indexed | 2024-03-08T22:46:57Z |
| format | Article |
| id | doaj.art-558b15319c4e4c77b278021564e31b28 |
| institution | Directory Open Access Journal |
| issn | 1687-4285 |
| language | English |
| last_indexed | 2024-03-08T22:46:57Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Egyptian Journal of Aquatic Research |
| spelling | doaj.art-558b15319c4e4c77b278021564e31b282023-12-17T06:37:52ZengElsevierEgyptian Journal of Aquatic Research1687-42852023-12-01494444451Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in IndonesiaEka Djunarsjah0Candida A.D.S. Nusantara1Andika P. Putra2Riko A. Wijaya3Sehat S. Sianturi4Nofal M.K. Anantri5Difa Kusumadewi6Miga M. Julian7Hydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Indonesia; Corresponding author.Hydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaHydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaHydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaHydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaHydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaDoctoral Program in Urban and Regional Planning, School of Architecture, Planning, and Policy Development's, Bandung Institute of Technology, IndonesiaHydrography Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, IndonesiaThe determination of the maritime boundary is related to the selection of the tidal datum used in relation to the zero-depth reference. This research was conducted to determine the impact of the zero-depth reference that has been used, the Mean Low Water Spring (MLWS), against the zero-depth recommended by the International Hydrographic Organization (IHO), the Lowest Astronomical Tide (LAT). Tidal data is obtained from BIG's tidal station processing, while the MLWS value data is obtained from a combination of analysis from the Hydrographic Office of Indonesia (Pushidros). Based on these data, it is found that 25 out of 37 tidal stations indicate that the LAT value is below the MLWS in its vertical position. This shows that sea boundary claims can potentially be shifted by changing the zero-depth reference from the original by switching from MLWS to LAT. Lastly, this study presents the benefits of implementing the vertical system reference recommended by the IHO, the LAT, as an international chart datum.http://www.sciencedirect.com/science/article/pii/S1687428523000444Maritime boundaryMLWSLATVertical positionInternational chart datum |
| spellingShingle | Eka Djunarsjah Candida A.D.S. Nusantara Andika P. Putra Riko A. Wijaya Sehat S. Sianturi Nofal M.K. Anantri Difa Kusumadewi Miga M. Julian Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia Egyptian Journal of Aquatic Research Maritime boundary MLWS LAT Vertical position International chart datum |
| title | Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia |
| title_full | Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia |
| title_fullStr | Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia |
| title_full_unstemmed | Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia |
| title_short | Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia |
| title_sort | prospects and constraints of lowest astronomical tide lat as determination of sea boundaries in indonesia |
| topic | Maritime boundary MLWS LAT Vertical position International chart datum |
| url | http://www.sciencedirect.com/science/article/pii/S1687428523000444 |
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