Estimation usability of the free software for transformation of geodetic coordinates between local and global datums - example of the Adriatic Sea (CROSBI ID 634288)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Duplančić Leder, Tea ; Leder, Nenad
engleski
Estimation usability of the free software for transformation of geodetic coordinates between local and global datums - example of the Adriatic Sea
The paper gives a brief outline of basic terms linked with global and local rotational ellipsoids and their datums as geoid approximations. It describes geodetic coordinate systems used to define the position of a point on the Earth. Several transformations are used to shift between local and global datums, but the Helmert and the Molodensky transformations are the most common ones. In order to estimate the usability of free software, 16 points were selected in a patterned distribution on the Eastern Adriatic coast. For each point, geodetic coordinates were transformed from the local ones to the WGS84 coordinates using a more accurate Helmert transformation (Trimble HYDROpro software with its parameters). After that, these coordinates were transformed using the Molodensky transformation, and the results were compared. The conclusion is that five free software products obtained satisfactory results, whereas one yielded somewhat poorer results.
datum transformation; Helmert transformation; Molodensky transformation
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Podaci o prilogu
1-10.
2009.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 24th International Cartographic Conference - The Worlds Geo-Spatial Solution
Garcia-Huidobro, J.V.
Santiago: Institut za suvremenu umjetnost
978-1-907075-02-5
Podaci o skupu
24th International Cartographic Conference - The Worlds Geo-Spatial Solution
predavanje
15.11.2009-21.11.2009
Santiago, Čile