Results 211 to 220 of about 83,920 (263)

Review of Problems Associated with Conventional Geodetic Datums

The Canadian Surveyor, 1974
After discussing the parameters needed to define a horizontal geodetic datum, the paper reviews the development of the major geodetic datums. The problem of determining the interrelationships between the various datums is analyzed and current transformation parameters are presented.
Ivan I. Mueller
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World Geodetic Datum 2000

Journal of Geodesy, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Erik W. Grafarend, Alireza A. Ardalan
openaire   +2 more sources

Positioning of Horizontal Geodetic Datums

The Canadian Surveyor, 1974
This paper treats the classical problem of positioning horizontal geodetic datums. By ‘classical problem’ we mean the problem we face when dealing with the usual horizontal control networks, as opposed to some of the more modern ideas, such as the use of geocentric coordinates, or the ideas of Hotine [1959, 1969].
D. E. Wells, Petr Vaníček
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Variance–Covariance Matrix of Transformed GPS Positions: Case Study for the NAD 83 Geodetic Datum

, 2016
This investigation introduces a rigorous mathematical transformation of variance–covariance matrices between a global geocentric frame and a plate-fixed geodetic frame.
T. Soler, Jen-Yu Han, N. Weston
semanticscholar   +1 more source

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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Geodetic Datum Definition of the SAGA Network [PDF]

, 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.
Christoph Reigber, J. Klotz, Detlef Angermann   +2 more
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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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The Establishment of Geodetic Datum in Jiaonan City

Applied Mechanics and Materials, 2012
As to Jiaonan geodetic datum, third-order horizontal control network is established through GPS while third-order leveling network is established through electronic level. This paper illustrates how to process data so as to improve horizontal and vertical precision in the process of establishing third-order horizontal control network and elevation ...
Jun Huang, De Bao Wang, Xue Ling Fang, Zhao Bo Xing   +3 more
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Establishment and Maintenance of Taiwan Geodetic Datum 1997 [PDF]

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 ...
Ching-Liang Tseng, Ming Yang, Jyh-Yih Yu
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Robust estimation of geodetic datum transformation

Journal of Geodesy, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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