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78  Articles
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The extensive use of GNSS positioning, combined with the importance of precise geoid heights for transformation between geodetic and orthometric heights, brings up the discussion of the influence of data uncertainties and the use of variable density value... see more

The combination of physical and geometric heights, required for geodetic purposes, uses Global Geopotential Models (GGMs), local geoid, or quasigeoid models. The geoid height and the height anomaly, provided by GGMs, are not accurate enough for most engin... see more

Earth Gravitational Model 2008 merupakan (EGM2008) model geoid yang didapatkan dengan kombinasi data terestrial, data altimetri dan data gayaberat airborne. Pemanfaatan data EGM2008 untuk pemodelan geoid di Indonesia ketelitiannya masih rendah. Dalam memo... see more

O advento da tecnologia GNSS (Global Navigation Satellite System) possibilitou muitos avanços em diversas áreas da ciência e engenharia. Porém, as altitudes obtidas a partir do posicionamento com esse sistema são de natureza puramente geométrica e sem rel... see more

Over 15 years the Gravity Recovery and Climate Experiment (GRACE) had considerably contributed to the determination of temporal variations of geoid heights. In May 2018, GRACE Follow-On (GRACE-FO) was launched. The aim of this contribution is to assess th... see more

According to Stokes’ approach, given the gravity anomaly on the geoid as the boundary, a disturbing potential function satisfying some boundary conditions should be solved. The basic requirement is that the disturbing potential function should be harmonic... see more

Recently, there is an increased interest in studying and defining the Local and Regional Geoid Model worldwide, due to its importance in geodetic and geophysics applications. The use of the Global Positioning System (GPS) is internationally growing, yet t... see more

Recently, there has been an increased interest in studying and defining the Local and Regional Geoid Model worldwide, due to its importance in geodetic and geophysics applications.The use of the Global Positioning System (GPS) is internationally growing, ... see more

There are several techniques for determining geoid heights using ground gravity data, the geopotential models, the astro-geodetic components or a combination of them. Among the techniques used, the Remove-Compute-Restore (RCR) technique has been widely ap... see more

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