Results 1 to 10 of about 6,317 (256)
Improvement of GOCE-Based Global Geopotential Models for Gravimetric Geoid Modeling in Turkey
Geosciences, 2022 This study investigates the contribution of global geopotential models which are calculated with GOCE satellite mission data to the improvement of gravimetric geoid models in Turkey.
Mustafa Serkan Isik +3 more
doaj +4 more sources
Global Geopotential Models assessment in Ecuador based on geoid heights and geopotential values
Journal of Geodetic Science, 2023 Since the 1960s, the analysis of disturbed satellite orbits to infer Earth’s gravity field functionals has been an important element in determining the Earth’s gravitational field. The long wavelengths of the gravitational field are recovered through the
Carrión José +3 more
doaj +2 more sources
Evaluation of normal heights by the means of global navigation satellite systems and global geopotential model [PDF]
Glasnik Srpskog Geografskog Društva, 2015 This paper presents geometrically and physically defined height systems, along with their evaluation by the means of Global Navigation Satellite Systems (GNSS) and Global Geopotential Models (GGM).
Odalović Oleg +4 more
doaj +4 more sources
On global and regional spectral evaluation of global geopotential models
Journal of Geophysics and Engineering, 2010 Spectral evaluation of global geopotential models (GGMs) is necessary to recognize the behaviour of gravity signal and its error recorded in spherical harmonic coefficients and associated standard deviations. Results put forward in this wise explain the whole contribution of gravity data in different kinds that represent various sections of the gravity
Aydin Ustun
exaly +5 more sources
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
doaj +3 more sources
Determination of deflection of the vertical components by using global geopotential model EGM2008 [PDF]
Tehnika, 2018 This paper presents the determination of the vertical deflection components using the Global Geopotential Model EGM2008. The components are defined in two groups of points: 4083 points are relatively correctly distributed across the territory of Serbia ...
Odalović Oleg R. +4 more
doaj +3 more sources
Studia Geophysica Et Geodaetica, 2009 The continuous efforts on establishment and modernization of the geodetic control in Turkey include a number of regional geoid models that have been determined since 1976. The recently released gravimetric Geoid of Turkey, TG03, is used in geodetic applications where GPS-heights need to be converted to the local vertical datum.
Michael Sideris +2 more
exaly +5 more sources
Estimation of Geopotential Value W0 for the Geoid and Local Vertical Datum Parameters
Remote Sensing, 2023 Unification of the global vertical datum has been a key problem to be solved for geodesy over a long period, and the main challenge for unifying the global vertical datum system is to determine the geopotential value W0 of the geoid and to calculate the ...
Xinyu Liu +4 more
doaj +1 more source
The Refined Gravity Field Models for Height System Unification in China
Remote Sensing, 2022 A unified height datum is essential for global geographic information resource construction, ecological environment protection, and scientific research.
Panpan Zhang +6 more
doaj +1 more source
Assessment of Global Geopotential Models for Modelling Malaysia Marine Geoid
International Journal of Integrated Engineering, 2022 The evaluation towards global geopotential models represents a significant part in modelling the localised Marine Geoid. The marine geoid provides the vertical reference information in Marine Spatial Data Infrastructures (MSDI) development response to United Nations Sustainable Development Goals 14 for the ...
Yahaya, Noor Anim Zanariah +6 more
openaire +2 more sources