Author: Saleh, Jarir

Source: Survey Review, Volume 36, Number 285, July 2002 , pp. 552-562(11)

Publisher: Maney Publishing

Abstract:

This paper suggests a simple way for the automatic robustification of datum definition in the adjustment of free geodetic networks. In the absence of regional crustal deformations, this method leads to accurately estimated coordinates even when several reference coordinates are unreliable. If regional crustal motions are present, experience shows that the method can be used as a quick exploratory technique that uncovers all unreliable and inaccurate reference points without any iterative testing. An example is presented to demonstrate the second case. The 1901–03 triangulation network of Trinidad, which is believed to be bisected by a major geologic fault that forms part of the boundary zone between the Caribbean and the South American tectonic plates, is adjusted on the ITRF96.

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/003962602791483082

Publication date: 2002-07-01

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