Results 141 to 150 of about 1,192 (179)

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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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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The Geodetic Datum in New South Wales

Australian Surveyor, 1984
Abstract In 1969 the National Mapping Council resolved that “all future mapping at all scales” be based on the Australian Map Grid. The AMG is based on the Australian Geodetic Datum 1966, AGD66 which in turn is based on astronomical observations. In consequence of the resolution a massive effort was expended in New South Wales to establish all mapping ...
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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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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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Kansas and the Geodetic Datum of North America

Transactions of the Kansas Academy of Science (1903-), 1948
Kansas has the distinction of having within its borders two significant landmarks. One of these is the geographical center of the United States, the other is the Meades Ranch triangulation station or the geodetic datum known as the North American datum of 1927.
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DATUM TRANSFORMATION PARAMETERS FOR THE KENYA GEODETIC SYSTEM

Survey Review, 1993
AbstractA summary of the history of geodetic control surveys in Kenya is given and this is related to a geodetic datum. Determination of datum transformation parameters is carried out for the 7-parameter and 3-parameter models using 25 points distributed over the country.
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The use of space techniques for the connection of geodetic datums

Advances in Space Research, 1986
Abstract Several techniques can provide now for ground stations tridimensional coordinates in global geodetic datum ranging from metre to centimetre. These techniques are basically : VLBI, Laser Ranging to the Moon or artificial satellites such as Lageos or Starlette, range and/or range-rate radio electric tracking of satellites such as Transit ...
C. Boucher, Z. Altamimi
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BACK TO BASICS (7) CHANGE OF GEODETIC DATUM

Survey Review, 1997
Abstract The coordinates of a position on the surface of the earth may be required to be expressed in more than one reference system.
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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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