Results 181 to 190 of about 18,051 (229)

Geodetic Datum and Geodetic Control Networks

2014
To measure terrain, surface features, position coordinates, heights, and gravity values at points on the Earth’s surface, there need to be corresponding reference points or surfaces (also known as datum points or surfaces), namely geodetic datums, to which surveying and mapping results are referred. Geodetic datums consist chiefly of coordinate datums (
Zhiping Lu, Yunying Qu, Shubo Qiao
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Horizontal and Vertical Geodetic Datums

1989
In conventional geodetic systems, locations of points on the surface of the earth may be defined either by means of natural (astronomic) or geometric (geodetic) coordinates. The natural coordinates, the astronomic latitude (Φ), longitude (Λ), and the orthometric (mean sea level height (H), being gravity dependent, are conventionally referenced to the ...
Ivan I. Mueller, Richard H. Rapp
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Geodetic Datums in Canada

The Canadian Surveyor, 1973
Because of 1) the appreciable distortions in the system of coordinates known as the 1927 North American Datum, 2) the definition of oil and gas exploration permit areas and offshore boundaries in t...
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Errata/Addendum - Australian Geodetic Datum Technical Manual

Australian Surveyor, 1994
Abstract The Australian Geodetic Datum Technical Manual (Special Publication 10) was produced by the former National Mapping Council of Australia in 1984. Since that time this publication has served as the standard technical reference for the definition of the Australian Geodetic Datum (AGD), the Australian Map Grid (AMG) and the Australian Height ...
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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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