Algerian Permanent Gps Network : First Results

Résumé: seismicily wltich marks out Northern Algeria and local geodetic measures shows that the tectonic deformation is still active. This defonnation is generally interpreted as the result of Eurasia­ Africa convergence. The use of satellites positioning techniques would allow to get free from classical constraints and offer, besides the technical advan­tages. a gain in lime. in precision and in cost. Among the panoply of existing spatial positioning systems. the GPS remains the most appropriate tool for the geodynamic needs and the seismic surveillance as it offers a large field of geodetic app!icalions and much more interesting perfonnances tjan the other systems. The objective of this study consists of on one hand in the precise estimation of the coordinates of the three new permanent Algerian GPS stations while integrating the IGS data and products and that by using thee Bemese 5.0 scientific software. and on the other hand in showing out the velocities displace­ment caused by geodynamic movements.

Publié dans la revue: Bulletin des sciences géographiques de l'INCT