Abstract A newtork of VLBI and GPS sites in Canada will provide a framework for precise geodetic and geodynamic observations to study continent-wide crustal deformations, post-glacial uplift and plate tectonics. The VLBI component will consist of three permanent stations with a 3000-km baseline located on the geologically stable Canadian Shield as the principal calibration line; it will facilitate continuous monitoring of the earth's rotational dynamics and by means of collocated GPS receivers will serve to maintain the accuracy and the long-term stability of GPS satellite orbit computations. A mobile VLBI system will be used to establish fiducial points with a spacing of about 1000-km to provide a reference for high-precision regional GPS surveys. The unique Canadian VLBI data acquisition and processing system features time-domain multiplexing, a wave-front clock and 24 Mb/sec data recording on standard video cassettes. High-precision differential GPS positions with uniform spacing of about 500-km will complement the VLBI network; these will be reoccupied at regular intervals to facilitate construction of a strain map of Canada. Absolute gravity observations will be carried out at most VLBI and GPS sites to provide additional constraints for geophysical interpretation. Geological Survey of Canada Contribution Number 30286


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    Title :

    Plans for VLBI and GPS monitoring network for geodesy and geodynamics in Canada


    Contributors:
    Kouba, J. (author) / Lambert, A. (author) / Popelar, J. (author) / Steeves, R.R. (author) / Cannon, W.C. (author)

    Published in:

    Publication date :

    1986-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



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