Results 11 to 20 of about 1,547 (182)
Geodesy and Geodynamics, 2023 The Global Navigation Satellite System (GNSS) positioning method has been significantly developed in geodetic surveying. However, the height obtained through GNSS observations is given in a geodetic height system that needs to be converted to orthometric
Rahayu Lestari +6 more
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Problems of the evolution of the figure and the earth's gravitational field [PDF]
E3S Web of Conferences, 2022 The relevance of geoid research involves examining a number of problems, the consideration of which reveals the evolution of the geoid. Measurements of the geoid help to understand the internal structure of our planet.
Dimitrova Alexandra +2 more
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Airborne geoid determination [PDF]
Earth, Planets and Space, 2014 Airborne geoid mapping techniques may provide the opportunity to improve the geoid over vast areas of the Earth, such as polar areas, tropical jungles and mountainous areas, and provide an accurate “seam-less” geoid model across most coastal regions. Determination of the geoid by airborne methods relies on the development of airborne gravimetry, which ...
Forsberg, R. +5 more
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Pot do novega modela geoida v Sloveniji ( = Towards a new geoid model of Slovenia) [PDF]
Geodetski Vestnik, 2017 The geoid model is a component of the national coordinate system. This paper presents the main concept and role of the geoid within geodesy and other geo-sciences.
Miran Kuhar
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Геофизический журнал, 2016 The application of Stokes’ formula to create geoid undulation requires no masses outside the geoid. Usually, a constant density of 2.67g / cm3 is used in the determination of the geoid which introduces error in the reduced gravity anomalies (Helmert’s ...
E.E. Epuh, J.B. Olaleye, O.G. Omogunloye
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ISPRS International Journal of Geo-Information, 2020 This investigation evaluates the performance of digital terrain models (DTMs) generated in different vertical datums by aerial LiDAR and unmanned aerial vehicle (UAV) photogrammetry techniques, for the determination and validation of local geoid models ...
Serdar Erol +3 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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Remote Sensing, 2022 The determination of the land geoid and the marine geoid involves different data sets and calculation strategies. It is a hot issue at present to construct the unified land–ocean quasi-geoid by fusing multi-source data in coastal areas, which is of great
Yusheng Liu, Lizhi Lou
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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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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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