article · The Egyptian Journal of Remote Sensing and Space Science
Orthometric heights are important for various applications such as GIS, geomatics, engineering, and geoscience. The ellipsoidal heights can be computed by Global Navigation Satellite System (GNSS) as an accurate, rapid, and efficient method for height determination. The accurate geoid is essential to convert the ellipsoidal heights from GNSS to orthometric heights. The research developed a new geoid called “KW-FWGM2022″ specifically for Kuwait. We used a composite global geopotential model from SPW R5 with EGM2008 and the digital elevation model from SRTM1. The Wong and Gore modified with Airy-Heiskanen topographic-isotactic reduction were used to compute the geoid model. To assess the accuracy of the KW-FWGM2022 geoid, GNSS/leveling stations were used and the assessment showed that the model's accuracy was better than 1.8 cm as a standard deviation. This demonstrates that the KW-FWGM2022 geoid model is highly accurate and suitable for use in various GIS and Geomatics applications in Kuwait.
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DOI: 10.1016/j.ejrs.2023.05.001
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