Results 21 to 30 of about 9,341 (230)
Analysis of the merged quasi-geoid of neighbouring areas
Geodesy and Geodynamics, 2018 Employing the merged quasi-geoid, we analyses the causes of systematic errors in modelling of quasi-geoid of neighbouring areas in the paper, and the efficient method is introduced to improve the accuracy of quasi-geoid.
Chunxi Guo +6 more
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Determination of the Orthometric Height inside Mosul University campus by using GPS data and EGM96 Geoid Model [PDF]
مجلة التربية والعلم, 2008 In the geodesy science, the heights determined by Global Positioning System (GPS) measurements are related to the perpendicular distance above the reference ellipsoid, while heights of Mean Sea Level (MSL) are determined with respect to geoid.
Sabah Ali
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Polynomial interpolation methods in development of local geoid model
Egyptian Journal of Remote Sensing and Space Sciences, 2018 In geodesy three surfaces, the physical surface of the earth, the geoid and the reference ellipsoid are encountered giving rise to orthometric height (h), the ellipsoidal height (H) and the geoidal separation (N).
Rabindra Kumar Das +3 more
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Journal of Geospatial Information Science and Engineering, 2019 Geoid has an important role in converting geodetic heights to physical heights, both in orthometric height system and normal height systems. At present, Semarang City already has gravimetric geoid with centimeter-level precision.
Laode M Sabri
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ESTABLISHMENT OF NEW FITTED GEOID MODEL IN UNIVERSITI TEKNOLOGI MALAYSIA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 The purpose of this study is to produce fitted geoid for Universiti Teknologi Malaysia (UTM), Johor Bahru by using precise levelling and 3D GNSS control network technique.
M. K. Ismail +5 more
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DFHRS-based computation of quasi-geoid of Latvia
Geodesy and Cartography, 2013 In geodesy, civil engineering and related fields high accuracy coordinate determination is needed, for that reason GNSS technologies plays important role.
Inese Janpaule +4 more
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A nehézségi erőtér regionális szerkezetének kutatása új típusú földi és szatellita mérések bevonásával = Regional gravity field research by using new kinds of terrestrial and satellite measurements [PDF]
, 2008 A vizsgálatainkat a magyarországi geoidmeghatározás, a geoidfelület interpoláció, továbbá a GOCE gradiométeres műhold jövőbeni méréseinek felhasználása főbb területein végeztük.
Biró, Péter +9 more
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Applied Sciences, 2020 Precise geoid heights are not as important for understanding Earth’s gravity field, but they are important to geodesy itself, since the vertical datum is defined as geoid in a cm-level accuracy.
Kwang Bae Kim +2 more
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Geoid model validation and topographic bias
Journal of Geodetic Science, 2022 Recently a number of geoid campaigns were performed to verify different types of geoid and quasigeoid modeling techniques. Typically, GNSS-leveling was employed as an independent method, but in some cases zenith camera astronomic deflection data were ...
Sjöberg Lars E.
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The hybrid quasi-geoid of North Macedonia: MK_HREF2022
, 2022 The MK_HREF2022 quasi-geoid model is a height reference surface for North Macedonia, referred to the GRS80 ellipsoid. It was computed by the Agency for Real Estate Cadastre of the Republic of North Macedonia, in cooperation with the Norwegian Mapping ...
Dimeski, Sasho +1 more
core +1 more source