Results 21 to 30 of about 2,359 (214)
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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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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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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Morphological updating on the basis of integrated DTMs: study on the Albano and Nemi craters [PDF]
, 2008 The Colli Albani Volcano has recently developed particular interest in the geophysical community for some peculiar characteristics imputable to a recent residual volcanic activity, thus evidencing that it cannot be considered extinguished yet.
Augusto Mazzoni +4 more
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Assessment of hybrid geoids in Chile and Spain, combining GGM and GNSS/Leveling observations
Geodesy and Geodynamics, 2021 This research presents the results for analyses done to five geopotential global models (GGM), comparing them with ground data from GNSS and leveling in heterogenic zones from the geodetic perspective, in Chile and Spain.
José Antonio Tarrío Mosquera +3 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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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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GPS-derived geoid using artificial neural network and least squares collocation [PDF]
, 2006 The geoidal undulations are needed for determining the orthometric heights from the Global Positioning System GPS-derived ellipsoidal heights. There ore several methods for geoidal undulation determination.
Ambrožič, Tomaž +3 more
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The second precise levelling network of Peninsular Malaysia [PDF]
, 2009 The measurement of Second Precise Levelling Network (PLN) for the Peninsular Malaysia which was completed in 2000 by Department of Surveying and Mapping Malaysia (DSMM) is set to replace the First Order Levelling Network of 1967. The new network consists
Mohamed, Azhari, Ses, Shahrum
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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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