Results 101 to 110 of about 2,359 (214)

On the definition of height reference surfaces over an arbitrary selected area by means of DFHRS approach

open access: yesGeodesy and Cartography, 2016
The aim of this study is to analyze the best fitting geoid model for an arbitrary selected area of investigation. The Digital Finite Element Height Reference Surface (DFHRS) method, developed by Hochschule Karlsruhe has been chosen to define the height ...
Perparim Ameti, Reiner Jager
doaj   +1 more source

Computation of precise geoid model of Auvergne using current UNB Stokes- Helmert’s approach

open access: yesContributions to Geophysics and Geodesy, 2017
The aim of this paper is to show a present state-of-the-art precise gravimetric geoid determination using the UNB Stokes-Helmert’s technique in a simple schematic way.
Juraj JANÁK   +5 more
doaj   +1 more source

Consistent determination of the gravimetric geoid and orthometric height

open access: yesJournal of Geodesy
Abstract Various computational methods have been developed and applied to determine regional gravimetric geoid models with high accuracy using surface gravity and terrain data, while also often taking into consideration topographic mass density information.
Robert Tenzer, Pavel Novák
openaire   +1 more source

Determination of the geopotential and orthometric height based on frequency shift equation

open access: yesNatural Science, 2011
The orthometric height (OH) system plays a key role in geodesy, and it has broad applications in various fields and activities. Based on general relativity theory (GRT), on an arbitrary equi-geo- potential surface, there does not exist the gravity frequency shift of an electromagnetic wave signal.
Wenbin Shen   +4 more
openaire   +2 more sources

Practical Local Geoid Model Determination for Mean Sea Level Heights of Surveys and Stable Building Projects [PDF]

open access: yes
A local geoid model for Evboriaria, Benin City using the geometric (GPS/Levelling) method was determined for calculation of mean sea level heights. Fifty points were established for the model and ten points were used for interpolation.
ETEJE S. O., ODUYEBO O. F., ONO M. N
core   +1 more source

The geoid or quasigeoid – which reference surface should be preferred for a national height system?

open access: yesJournal of Geodetic Science, 2013
Most European states use M. S. Molodensky’s concept of normal heights for their height systems with a quasigeoid model as the reference surface, while the rest of the world rely on orthometric heights with the geoid as the zero-level.
Sjöberg L. E.
doaj   +1 more source

Comparación de la precisión de los Modelos Geopotenciales EGM96 y EGM08 en la zona del Caribe. [PDF]

open access: yes, 2012
Recientemente fue publicado un nuevo modelo geopotencial global, el EGM08. Este modelo ha mostrado una notable mejoría en la calidad de sus tres fuentes de datos; las observaciones del movimiento perturbado de los satélites artificiales,la altimetría ...
Bethencourt Fernández, Abelardo   +1 more
core  

Field surveying data of low-cost networked flood sensors in southeast Texas. [PDF]

open access: yesData Brief, 2023
Hariri Asli H   +4 more
europepmc   +1 more source

GEOID-QUASIGEOID CORRECTION IN FORMULATION OF THE FUNDAMENTAL FORMULA OF PHYSICAL GEODESY [PDF]

open access: yesRevista Brasileira de Cartografia, 2003
To formulate the fundamental formula of physical geodesy at the physical surface of the Earth, the gravity anomalies are used instead of the gravity disturbances, because the geodetic heights above the geocentric reference ellipsoid are not usually ...
Petr Vanícek, Robert Tenzer
doaj  

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