Abstract During the last decade there has been an unprecedented improvement in both the accuracy and the temporal resolution of Earth rotation measurements. Determination of the position of the Earth's rotation axis both in inertial space and with respect to the crust with accuracies of about 0.3 milliarcseconds (mas) are now routine. In recent years, there has been and emphasis on the determination of short-period (daily and less) variations in Earth rotation. Two space based geodetic systems, very long baseline interferometry (VLBI) and the global positioning system (GPS) have proved to be very successful in this endeavor. Results for the tidally coherent part of the subdaily Earth rotation variations determined from the analysis of VLBI data are discussed. The magnitude of other subdaily variations are also considered.


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    Title :

    Diurnal and semidiurnal variations in Earth rotation


    Contributors:
    Herring, T. (author)

    Published in:

    Advances in Space Research ; 13 , 11 ; 281-290


    Publication date :

    1993-01-01


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Diurnal and Semidiurnal Variations in Earth Rotation

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