A High Resolution Bathymetric Data for the Inner Gulf of Thailand
Abstract
This research aims to correct a high resolution bathymetric data GEBCO 30 arc-second (GEBCO30) and for the inner Gulf of Thailand by comparison with ship-line sounding digitized data from 18 Navigation Charts of Hydrographic Department, the Royal Thai Navy. The results show that the data of GEBCO30 and the digitized Navigation Chart 223 which is adjusted their resolution to 0.05 nautical miles (92.6 meter) has a total vertical uncertainty (TVU) of 59.82% in meter and 99.93% in % of water depth under the confidence level of IHO standard (2008), thus it is higher than the data of GEBCO30 resolution 0.5 nautical miles and the combination between the data of GEBCO30 and the digitized Navigation Chart 223 resolution 0.5 nautical miles. Moreover, the results give the depth data of the inner Gulf of Thailand which for the corrected data of GEBCO30 and the digitized Navigation Chart 223 with a high resolution bathymetric data about 234,920 data in total for application in various purposes. Keyword : the inner Gulf of Thailand , the upper Gulf of Thailand, bathymetric data, high resolution bathymetryReferences
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of IHO S-44 standards. International Hydrographic Review, 6(2), 1-11.
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Wessel, P. & Smith, W.H.F. (1998). New improved version of generic mapping tools release. EOS
Transactions American Geophysical Union, 79(47), 579.
slope of the Porcupine Seabight. Marine Geology, 198, 27-54.
Beyer, A., Rathlau, R. & Schenke, H.W. (2005). Multibeam bathymetry of the Hakon Mosby mud volcano.
Marine Geophysical Researches, 26, 61-75.
Department of Mineral Resources; DMR. (2012). Marine geology of the upper Gulf of Thailand. Technical
paper no. 9/2555. DMR. Department of Mineral Resources. Ministry of Natural Resources and
Environment. (in Thai)
Hydrographic Department. (2009). Nautical Charts and Publications. Navigational Supporting Center.
Hydrographic Department. Royal Thai Navy.
International Hydrographic Organization; IHO. (2008). IHO Standards for Hydrographic Surveys: 5th Edition,
SpecialPublication, 44, International Hydrographic Bureau. Monaco. (February 2008).
Jintasaeranee, P. (2012). Accuracy of the general bathymetry (GEBCO 30 arc-second) in the Upper Gulf of
Thailand. Burapha Science Journal, 17(1), 69-76. (in Thai)
Marks, K.M. & Smith, W.H.F. (2005). 2500m isobath from satellite bathymetry: Accuracy assessment in light
of IHO S-44 standards. International Hydrographic Review, 6(2), 1-11.
Sandwell, D.T., Smith, W.H.F., Gille, S., Kappel, E., Jayne, S., Soofi, K., Coakley, B. & Geli, L. (2006).
Bathymetry from space : Rationale and requirements for a new, high-resolution altimetric mission.
C.R. Geoscience, 338, 1049-1062.
The GEBCO_08 Grid. (2010). version 20100927, http://www.gebco.net
Wessel, P. & Smith, W.H.F. (1998). New improved version of generic mapping tools release. EOS
Transactions American Geophysical Union, 79(47), 579.
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Published
2018-11-02
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