Results 11 to 20 of about 1,485 (184)
Determination of correlation coefficient between geoid-to-quasigeoid separation calculated by the satellite data in Sjöberg’s equation and GPS/Levelling method [PDF]
Geodesy and Cartography, 2018 In this paper, two techniques for calculating the geoid-to-quasigeoid separation are employed. One of them is GPS/Levelling customary method as a criterion where the geoid undulation and height anomaly are computed by subtracting the ellipsoid height ...
Ata Eshaghzadeh +2 more
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Modeling difference of reference surfaces of the Earth's body to solve the problem of vertical positioning [PDF]
Tehnika, 2016 The aim of this paper is modeling difference of reference surfaces of the Earth's body to solve the problem of vertical positioning. With development of GNSS technology determining geoid undulation obtained scientific and practical significance ...
Tucikešić Sanja S. +2 more
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Development of a gravimetric geoid model and a comparative study
Geodesy and Cartography, 2016 Site specific geoid model is prerequisite for accurate determination of orthometric heights. No geoid model has been developed so far for India or any of its part.
Upendra Nath Mishra, Jayanta Kumar Ghosh
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Open Geosciences, 2023 The orthometric height has an essential role in a variety of civil engineering projects and it is defined as the length of the curved plumbline from a point (on the earth surface) to its intersection with the geoid surface. Leveling process is considered
Al Shouny Ahmed +3 more
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Remote Sensing, 2023 The high-precision regional geoid model provides important fundamental geospatial information for developing and applying many disciplines. Deterministic and stochastic modifications are applied to Stokes’s and Hotine’s formulas of geoid modeling to ...
Qiong Wu +4 more
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A Fast Method for Calculation of Marine Gravity Anomaly
Applied Sciences, 2021 Gravity data have been playing an important role in marine exploration and research. However, obtaining gravity data over an extensive marine area is expensive and inefficient.
Yuan Fang +5 more
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Spatial uncertainty of a geoid undulation model in Guayaquil, Ecuador
Open Geosciences, 2017 Geostatistics is a discipline that deals with the statistical analysis of regionalized variables. In this case study, geostatistics is used to estimate geoid undulation in the rural area of Guayaquil town in Ecuador.
Chicaiza E.G. +3 more
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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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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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Handling Dataset with Geophysical and Geological Variables on the Bolivian Andes by the GMT Scripts
Data, 2022 In this paper, an integrated mapping of the georeferenced data is presented using the QGIS and GMT scripting tool set. The study area encompasses the Bolivian Andes, South America, notable for complex geophysical and geological parameters and high ...
Polina Lemenkova
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