Results 71 to 80 of about 1,547 (182)

Evropski in globalni model geoida na območju Slovenije [PDF]

Geodetski Vestnik, 2000
Article deals with geoid models EGM96 and EGG97. Model geoidundulations are verified by means of given geoid undulations that werecomputed from measured orthometric and elipsoidal heights.
Miran Kuhar, Peter Prešeren
doaj  

Assessment of marine geoid models by ship-borne GNSS profiles

Geodesy and Cartography, 2017
Even though the entire Baltic Sea is included in previous geoid modelling projects such as the NKG2015 and EGG07, the accuracy of contemporary geoid models over marine areas remains unknown, presumably being offshore around 15–20 cm. An important part of
Sander Varbla, Artu Ellmann, Silja Märdla, Anti Gruno   +3 more
doaj   +1 more source

Direct regional quasi-geoid determination using EGM2008 and DEM: A case study for Mainland China and its vicinity areas

Geodesy and Geodynamics, 2015
Earth's gravity model (EGM) helps people better determine the figure of Earth, which is generally represented by a global geoid. For a considerable amount of practical applications, people use quasi-geoid to approximate the geoid, thus the quasi-geoid is
Jin Li, WenBin Shen, Xuhua Zhou
doaj   +1 more source

Pengaruh Densitas Topografi Terhadap Ketelitian Model Geoid: Studi kasus Pulau Sulawesi

Journal of Geospatial Information Science and Engineering
Penentuan model geoid teliti penting untuk mendapatkan tinggi ortometrik dari tinggi Global Navigation Satellite System (GNSS).   Salah satu faktor yang mempengaruhi ketelitian model geoid adalah densitas topografi.
Leni Sophia Heliani, Hendra Noviantara
doaj   +1 more source

On the topographic effects by Stokes’ formula

Journal of Geodetic Science, 2014
Traditional gravimetric geoid determination relieson Stokes’ formula with removal and restoration of thetopographic effects. It is shown that this solution is in errorof the order of the quasigeoid-to-geoid difference, which ismainly due to incomplete ...
Sjöberg L.E.
doaj   +1 more source

The Spherical Harmonic Representation of the Geoid

Geomatics
Global Gravitational Models (GGMs) describe the Earth’s external gravitational field by a set of spherical harmonic (Stokes) coefficients. These coefficients are routinely used to compute the geoid model, while disregarding the upper continental crustal (
Robert Tenzer, Wenjin Chen, Shengwang Yu, Zhengfeng Jin   +3 more
doaj   +1 more source

Geoid determination using airborne gravity vectors

Earth, Planets and Space
In traditional airborne gravimetry, the vertical component of the gravity vector is used as an approximation of the measured magnitude of the gravity vector, which enters the determination of the local geoid.
Mehdi Goli, Ismael Foroughi, Spiros Pagiatakis, Stephen Ferguson, Pavel Novák   +4 more
doaj   +1 more source

On the Consistency between a Classical Definition of the Geoid-to-Quasigeoid Separation and Helmert Orthometric Heights. [PDF]

Sensors (Basel), 2023
Tenzer R, Nsiah Ababio A.
europepmc   +1 more source

Sea level much higher than assumed in most coastal hazard assessments. [PDF]

Nature
Seeger K, Minderhoud PSJ.
europepmc   +1 more source

Cenozoic evolution of earth's strongest geoid low illuminates mantle dynamics beneath Antarctica. [PDF]

Sci Rep
Glišović P, Forte AM.
europepmc   +1 more source