Gravity recovery from SWOT altimetry using geoid height and geoid gradient
Remote Sensing of Environment, 2021 Abstract The Surface Water and Ocean Topography (SWOT) altimeter mission can measure high-resolution wide-swath sea surface heights (SSHs) that may greatly improve the current accuracy and spatial resolution of marine gravity from nadir-looking altimeters.
Cheinway Hwang, Ole Baltazar Andersen
exaly +3 more sources
Precise Geoid Determination in the Eastern Swiss Alps Using Geodetic Astronomy and GNSS/Leveling Methods [PDF]
SensorsAstrogeodetic deflections of the vertical (DoVs) are close indicators of the slope of the geoid. Thus, DoVs observed along horizontal profiles may be integrated to create geoid undulation profiles.
Müge Albayrak +4 more
doaj +2 more sources
On the geoid and orthometric height vs. quasigeoid and normal height [PDF]
Journal of Geodetic Science, 2018 The geoid, but not the quasigeoid, is an equipotential surface in the Earth’s gravity field that can serve both as a geodetic datum and a reference surface in geophysics. It is also a natural zero-level surface, as it agrees with the undisturbed mean sea
Sjöberg Lars E.
doaj +2 more sources
Changing the national height system and GEOID model in Latvia
Geodesy and Cartography, 2016 According to the decision of IAG Reference Frame Sub-commission for Europe (EUREF) the EVRF2007 solution as the vertical reference has to be deployed in EU countries.The new height system LAS-2000,5 had been enacted as the European Vertical Reference ...
Janis Balodis +7 more
doaj +4 more sources
ACCURACY ASSESSMENT OF DIFFERENT POLYNOMIAL GEOID MODELS IN ORTHOMETRIC HEIGHT DETERMINATION FOR AKURE, NIGERIA [PDF]
Geodetski Glasnik, 2021 Height is an important component in three dimensional coordinates and determination of the position of points for any meaningful development. Ellipsoidal heights from GNSS require geoid model which could be global, regional and local for transformation ...
Ibrahim Olatunji Raufu, Herbert Tata
doaj +1 more source
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
doaj +1 more source
ADAPTATION OF THE GLOBAL GEOID MODEL EGM2008 ON CAMPANIA REGION (ITALY) BASED ON GEODETIC NETWORK POINTS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 The knowledge of the geoid undulation, the height of the geoid relative to a given ellipsoid of reference, is fundamental to transform the ellipsoidal heights into orthometric heights.
G. Ferrara, C. Parente
doaj +1 more source
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
doaj +1 more source
On the construction of gravimetric geoid model on the Lviv region area
Геофизический журнал, 2022 Baltic Height System 1977, currently used in Ukraine, the starting point of which is the zero of the Kronstadttide-gauge, isobsoletedue to the great distance from the zero-point of the reference height and the difficulty of adapting satellite methods of
F. Zablotskyi +2 more
doaj +1 more source
Local geoid height approximation and interpolation using moving least squares approach
Geodesy and Geodynamics, 2020 In this paper an introduction of the moving least squares approach is presented in the context of data approximation and interpolation problems in Geodesy.
M. Kiani
doaj +1 more source