Results 221 to 230 of about 18,240 (265)

Robust estimation of geodetic datum transformation

Journal of Geodesy, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Geodetic Datum Transformation and Inverse Transformation

Applied Mechanics and Materials, 2014
Geodetic datum transformation and inverse transformation are very basic tasks in geodesy, and surveying engineering, etc. Considering the rotation angles are in seconds, the rotation matrix is simplified, and then the observation equation is easily linearized and solved by least squares technique. The inverse transformation is derived explicitly, which
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Proposed absolute datum for Indian geodetic system

Bulletin Géodésique, 1981
The international ellipsoid, 1924, was locally fitted to the Indian geoid in 1927. An attempt is here made to obtain the initial values for the Indian geodetic datum (I.G.D.) in absolute terms by gravimetric method using the available gravity material. The values obtained independently by the author’s least-squares solution technique, making use of the
J. C. Bhattacharji, P. K. Ray
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Establishment of new Oman National Geodetic Datum ONGD14

Survey Review, 2014
The main objective of enhancing national geodetic control is to create a homogenous horizontal survey control for the country. The realisation of a new geocentric datum, namely the Oman National Geodetic Datum (ONGD14), provides the GPS user community with a modern surveying infrastructure.
Y. Al-Toobi, S. Al-Hashmi, B. Al-Busaidi, I. Al-Balushi, S. Ses   +4 more
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Impact of Satellite Altimetry on Geodetic Datum Definition

The Canadian Surveyor, 1974
Based on results of the geodetic calibration and analysis of Skylab altimeter data, the concept of determination of the geoid in the oceans — the marine geoid — from satellite altimetry has been demonstrated. In principle, the satellite altimetry geoid should combine and improve on all the strong features of the gravimetric, astrogeodetic and ...
D. M. J. Fubara, A. G. Mourad
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Transformation of coordinates between two horizontal geodetic datums

Journal of Geodesy, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vaníček, Petr, Steeves, Robin R.
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Geodetic Datum Definition of the SAGA Network

2000
In cooperation with various organizations in the host countries, the GFZ Potsdam established the large-scale GPS network SAGA (South American Geodynamic Activities) covering Chile and parts of Argentina. The network consists of 215 sites including two sites on the islands Robinson Crusoe and San Felix that are part of the Nazca plate.
Detlef Angermann, Jürgen Klotz, Christoph Reigber   +2 more
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Establishment and Maintenance of Taiwan Geodetic Datum 1997

Journal of Surveying Engineering, 2001
A well-defined three-dimensional geodetic datum is essential to the development of a modernized nation. Also, it is of importance for the geodetic datum to be sufficiently accurate at all times to meet the requirements of many scientific and engineering applications, such as crustal deformation monitoring, national charting and mapping, cadastral ...
Ming Yang, Ching-Liang Tseng, Jyh-Yih Yu
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Geodetic Boundary-Value Problems and the Height Datum Problem

2004
The analysis of boundary-value problems has always been used in geodesy as a frame to understand the nature of the problem of determining the gravity disturbing potential, with respect to well-posedness (existence, uniqueness, continuous dependence of the solution on boundary data).
SACERDOTE, FAUSTO, F. Sansò
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Time Evolution of a World Geodetic Datum

2002
Four fundamental geodetic parameters, namely \(\{ GM,{W_0},\Omega ,{J_2}\} \) , determine a world geodetic datum. With respect to the Somigliana-Pizzetti Level Ellipsoid I International Reference Ellipsoid these fundamental parameters from best estimates at a reference epoch determine its semi-major axis a as well as its semi-minor axis b (or ...
E. W. Grafarend, A. A. Ardalan
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