Results 11 to 20 of about 285 (165)
Determination of the local geoid model in Duhok Region, University of Duhok Campus as a Case study
Ain Shams Engineering Journal, 2021 The height obtained through the GNSS method is the ellipsoidal height and to have an efficient application in surveying it has to be converted into orthometric height.
Farsat Heeto Abdulrahman
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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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REPLACING ORTHOMETRIC HEIGHTS WITH ELLIPSOIDAL HEIGHTS IN ENGINEERING SURVEYS
Nigerian Journal of Technology, 2016 Differential Global Positioning System (DGPS) is one of the most frequently used positioning methods in geodesy. The end products of surveying with Global Navigation Satellite Systems (GNSS)are geodetic latitude (ϕ), geodetic longitude (λ) and ellipsoidal height (h) which are obtained with reference to the ellipsoid.
Badejo, OT, Aleem, KFA, Olaleye, JB
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The relation between rigorous and Helmert’s definitions of orthometric heights [PDF]
Journal of Geodesy, 2006 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Santos, M. +7 more
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Comparison of Helmert and rigorous orthometric heights over Japan [PDF]
Earth, Planets and Space, 2015 The local vertical datum in Japan is based on the Helmert’s approximation of mean gravity along the plumbline. However, determination of a rigorous orthometric height requires that the integral-mean value of gravity along the plumbline between the geoid and the Earth surface has to be known precisely.
Odera, Achola Patroba, Fukuda, Yoichi
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An Alternative Choice in Heighting
Geoinformatics FCE CTU, 2018 Comparison of orthometric heights obtained from the combination of GPS/Levelling survey method with that obtained from Lidar, Srtm, and Astergdem data is an area of research which is of great interest to Geomaticians. This area of research makes possible
Olusola Gabriel Omogunloye +4 more
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Remote Sensing, 2022 Physical heights were traditionally determined without considering the dynamic processes of the Earth induced from temporal mass variations. The Gravity Recovery and Climate Experiment (GRACE) mission provided valuable data that allow the estimation of ...
Malgorzata Szelachowska +2 more
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Recovery of orthometric heights from ellipsoidal heights using offsets method over Japan [PDF]
Earth, Planets and Space, 2015 One of the most important applications of a geoid model is a recovery of orthometric heights from ellipsoidal heights (normally obtained from GNSS). The application of the geoid model for recovering orthometric heights from ellipsoidal heights is normally achieved by fitting the geoid model to a local vertical datum.
Odera, Patroba Achola, Fukuda, Yoichi
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Journal of King Saud University: Engineering Sciences, 2018 Though considered the easiest in 3-Dimensional Point Positioning, the choice of a height system especially in areas with spatially-vast land mass is rather a complicated choice.
J.O. Odumosu +3 more
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On the topographic bias and density distribution in modelling the geoid and orthometric heights
Journal of Geodetic Science, 2018 It is well known that the success in precise determinations of the gravimetric geoid height (N) and the orthometric height (H) rely on the knowledge of the topographic mass distribution.
Sjöberg Lars E.
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