The Development of Continuous Hydrographic Datum Using Geodetic Based Approaches: A Review

Rahman, Mohd Faizuddin Abd; Din, Ami Hassan Md

doi:10.1088/1755-1315/540/1/012062

Cited by 3 publications

(7 citation statements)

References 7 publications

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“…Traditionally, data from the tide gauge stations have been exploited to establish a localised tidal datum, such as the Lowest Astronomical Tide (LAT), Mean Sea Level (MSL), and Highest Astronomical Tide (HAT) along the coast [1,2]. Currently, there are 19 continuously operating tide gauges in Malaysia by the Department of Survey and Mapping Malaysia (DSMM) [3,4]. Accordingly, Malaysia has a maritime area of 55,629 km and 329,960 km of land area [5].…”

Section: Introductionmentioning

confidence: 99%

Quasi-Continuous Tidal Datum for Peninsular Malaysia using Tide Gauge, Satellite Altimetry, and Tide Model Driver (TMD) Data

Abd Rahman,

Din,

Mahmud

et al. 2024

Eng. Technol. Appl. Sci. Res.

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Conventionally, information from the tide gauge stations was used to establish the localized tidal datum. However, limitations in coverage, due to the sparse station distribution along the coast, have caused insufficient tidal datum information in some areas. Therefore, this study aims to develop the Peninsular Malaysia Quasi-Continuous Tidal Datum (PMQCTD) by integrating tide gauges, satellite altimetry, and Tide Model Driver (TMD) data. The research methodology includes data acquisition from 12 Departments of Survey and Mapping Malaysia (DSMMs) tide gauge stations along the coast of Peninsular Malaysia, satellite altimetry data of TOPEX, Jason-1, Jason-2, and GEOSAT Follow-On (GFO) from Radar Altimeter Database System (RADS), and the global hydrodynamic model from TMD. The tide gauge, satellite altimetry, and TMD data encompass 23 years of tidal observation data from 1993 to 2015. For the derivation of the tidal datum, tide gauge, and satellite altimetry data were analyzed following a harmonic analysis approach in the Unified Tidal Analysis and Prediction (UTide) software. Meanwhile, for the TMD data, the tidal datum was determined based on the tidal prediction from the 11 extracted major tidal constituents. For compatibility in data integration, the derived Lowest and Highest Astronomical Tide (LAT and HAT) from tide gauge, satellite altimetry, and TMD data were referenced to the Mean Sea Level (MSL), denoted as LATMSL and HATMSL, respectively. Next, the LATMSL and HATMSL were interpolated employing Inverse Distance Weighting (IDW) to develop the PMQCTD (LATMSL and HATMSL) with the ArcGIS software. The statistical assessment indicated that the established PMQCTD (LATMSL and HATMSL) has a better agreement with the DSMM tide gauges with a Root Mean Square Error (RMSE) of ± 0.228 m for LATMSL and ± 0.159 m for HATMSL In conclusion, the establishment of PMQCTD (LATMSL and HATMSL) has led to the availability of the tidal datum at any location along the coast of Peninsular Malaysia.

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Section: Introductionmentioning

confidence: 99%

Quasi-Continuous Tidal Datum for Peninsular Malaysia using Tide Gauge, Satellite Altimetry, and Tide Model Driver (TMD) Data

Abd Rahman,

Din,

Mahmud

et al. 2024

Eng. Technol. Appl. Sci. Res.

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“…The height separation between tidal datums and datum references, through period observed soundings, are used in hydrographic surveying to determine the vertical control, which is used to reduce seafloor depth to estimate the CD [3]. Although the accuracy of hydrographic surveying in CD estimation is high, this processing makes it difficult to estimate the CD in real time, and the bathymetric surfacing algorithm have difficulty dealing with period sound observations [1,4].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Furthermore, today, Global Navigation Satellite System (GNSS) is commonly used in geoid modeling, ocean tide modeling, hydraulic datums and many maritime applications [3][4][5]. Thus, the integration of tidal and GNSS measurements is the most appropriate solution for a continuous and accurate hydrographic datum [3,4,6]. The requirements for generating continuous hydrographic datum through CD transformation are proposed in Iliffe et al [7] and Eldiasty et al [3] to conduct efficient hydrographic surveys by transforming the GNSS ellipsoid and to CD in real-time mode without observing tidal data.…”

Section: Introductionmentioning

confidence: 99%

“…Meanwhile, the theory of the CD-to-ellipsoid concept is presented in Abd-Rahman and Din [4]. A continuous CD is a relative two-dimensional reference to vertical reference datum, such as LAT in Saudi Arabia or the reference ellipsoid, WGS84.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Chart Datum-to-Ellipsoid Separation Model Development for Obhur Creek Using Multibeam Hydrographic Surveying

El-Diasty

Kaloop

Alsaaq

2022

JMSE

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A traditional shore-based discrete point chart datum (CD) that represents the lowest astronomical tide (LAT) in Saudi Arabia using tide gauge data is utilized to reduce the observed depth collected from hydrographic surveying test to CD-referenced depth for producing navigation charts for maritime navigation applications. A need for developing CD in a continuous form is essential to replace the traditional discrete CD using tide gauge data. The importance of the development of CD-to-ellipsoid (WGS84) separation model is that it can be utilized by the hydrographers to develop an accurate vertical control for hydrographic surveys applications and can be utilized by the mariners to produce accurate dynamic electronic navigation charts (ENCs). In this paper, a continuous CD to WGS84 ellipsoid separation model for the Sharm Obhur area is developed using a multibeam hydrographic surveying test. It is shown that the continuous chart datum ranges from −4.920 m to −4.766 m and can be achieved with standard deviation ranges from 0.1 cm to 2.3 cm. To validate the separation model, a comparison was made with the gravimetric/oceanographic method based on the separation height developed from geoid height, the sea surface topography and LAT value (chart datum to mean sea level) at the tide gauge located in the study area. The comparison showed that the average value of the developed continuous CD to WGS84 separation model heights using multibeam hydrographic surveying agrees with the separation height estimated from gravimetric/oceanographic method.

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Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia

Djunarsjah,

Nusantara,

Putra

et al. 2023

Egyptian Journal of Aquatic Research

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The Development of Continuous Hydrographic Datum Using Geodetic Based Approaches: A Review

Cited by 3 publications

References 7 publications

Quasi-Continuous Tidal Datum for Peninsular Malaysia using Tide Gauge, Satellite Altimetry, and Tide Model Driver (TMD) Data

Quasi-Continuous Tidal Datum for Peninsular Malaysia using Tide Gauge, Satellite Altimetry, and Tide Model Driver (TMD) Data

Chart Datum-to-Ellipsoid Separation Model Development for Obhur Creek Using Multibeam Hydrographic Surveying

Prospects and Constraints of Lowest Astronomical Tide (LAT) as Determination of Sea Boundaries in Indonesia

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