University of Khartoum

Evaluation of GPS Datum Transformation and GPS/GIS Integration

Evaluation of GPS Datum Transformation and GPS/GIS Integration

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Title: Evaluation of GPS Datum Transformation and GPS/GIS Integration
Author: Abd El Rahim El Gizouli, Mohamed
Abstract: Civilian and Military uses of geodetic GPS surveying and Geographical Information Systems (GIS) are the main objective of this study. The production of the military used topographical maps in hard and soft copy is the main duty of the Sudan Military Surveying Unit، so that the use of intermediate and long range rockets and missiles requires that the distance and direction from launch site to target be accurately known. With the development of both intermediate and long range weapons systems، geodetic problem has become more critical than ever before. To satisfy military requirements، it is necessary to provide detailed cartographic coverage of areas of strategic importance، and to accomplish geodetic computations between these areas and launch sites which are often on unrelated datums. Both of theses requirements necessitate unification of major geodetic datums by one or a combination of existing methods. Also the geodetic data used in the production of the topographical base maps for any area in Sudan were observed and computed by the classical system related to the local datum (Adindan) using the parameters of Clarke 1880 ellipsoid. Nowadays there are satellite receives (GPS receivers) used in geodetic observations where the data produced by this system are referenced to the geocentric datum (WGS-84). In this thesis the principles of geodesy is introduced in chapter one. The GPS surveyor with some details in the GPS observation systems are given in chapter two. Some information about Geographical Information System (GIS) is outlined in chapter three. The definition of the datum orientations and the datum orientations and the transformation parameters between local and geocentric datum is given in chapter four. Practical application of geodetic GPS coordinates common to the national network stations were examined and the transformation parameters between (WGS-84) and Adindan datum were determined in chapter five، including the evaluation of ARC/INFO (GIS software) using common GPS(WGS-84) and local datum (Adindan) coordinates to examine the accuracy of the topographical maps handled by the GIS. Conclusions and future recommendations were drawn in chapter six.
URI: http://khartoumspace.uofk.edu/handle/123456789/15311
Date: 2015-06-28


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